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Three new species of Tamalia (Hemiptera, Aphididae, Tamaliinae) associated with leaf galls on Arbutus, Arctostaphylos, and Comarostaphylis in North America Can. Entomol. (IF 0.9) Pub Date : 2023-03-27 D.G. Miller, K.S. Pike, R.G. Foottit, H.E.L. Maw
Tamalia (Hemiptera: Aphididae: Tamaliinae), a Nearctic aphid genus, is associated with galls on woody plants in the family Ericaceae (Arctostaphylos spp., Arbutus arizonica, and Comarostaphylis diversifolia). Tamalia cruzensis Miller and Pike, n. sp., Tamalia glaucensis Miller and Pike, n. sp., and Tamalia moranae Miller and Pike, n. sp. are described and illustrated. Two of these, T. cruzensis and
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Canada’s response to invasion by Asian longhorned beetle (Coleoptera: Cerambycidae) in Ontario Can. Entomol. (IF 0.9) Pub Date : 2022-04-26 J.J. Turgeon, B. Gasman, M.T. Smith, J.H. Pedlar, M. Orr, R.E. Fournier, J. Doyle, J. Ric, T. Scarr
A reproductive population of the Asian longhorned beetle, Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae), an adventive insect from Asia, was discovered in 2003 in an urban landscape in Ontario, Canada. This polyphagous beetle, which attacks maples, Acer spp. (Sapindaceae), had the potential to seriously and permanently alter the composition and structure of forests in eastern North
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Four species of anthidiine bees (Apoidea: Megachilidae) new to India Can. Entomol. (IF 0.9) Pub Date : 2021-12-11 Sayan Sardar, Max Kasparek, A. Rameshkumar, S.I. Kazmi
We report for the first time in India one genus, Bathanthidium Mavromoustakis, and the following four species of the bee tribe Anthidiini (Hymenoptera: Megachilidae) based on material deposited at the Zoological Survey of India, Kolkata: Anthidium (Anthidium) florentinum (Fabricius), Anthidium (Proanthidium) qingtaoi Niu and Zhu, Anthidiellum (Pycnanthidium) carinatum (Wu), and Bathanthidium (Manthidium)
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Winter sampling and seasonal variation in litter-dwelling beetle assemblages using a sifting method Can. Entomol. (IF 0.9) Pub Date : 2021-12-08 Ui-Joung Byeon, Seung-Il Lee, Sun-Jae Park, A-Young Kim, Jong-Seok Park
Litter-dwelling arthropods play an important role in maintaining forest ecosystem function. This study was designed to understand seasonal variations and diversity of litter-dwelling adult beetles, one of the most diverse groups of arthropods. Sampling was conducted in mixed-wood forests of South Korea between March and December 2019, covering all seasons, including winter. We used a sifting method
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Susceptibility of iris (Iridaceae) to larval infestation by Neorthacheta dissimilis (Diptera: Scathophagidae) Can. Entomol. (IF 0.9) Pub Date : 2021-12-01 Josée Doyon, Jade Savage, Stéphane Bailleul, Stéphane Labelle, Jacques Brodeur
Neorthacheta dissimilis Malloch (Diptera: Scathophagidae) is a poorly known scathophagid fly that feeds and develops on iris (Iridaceae). A survey of its occurrence was performed at the Montréal Botanical Garden (Montréal, Québec, Canada) in 2018, 2019, and 2020. Iris species and cultivars from two subgenera, Iris and Limniris, were evaluated for larval infestation. When pooled for subgenera and years
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Reproduction of Ooencyrtus submetallicus (Hymenoptera: Encyrtidae) in egg densities of Euschistus heros (Hemiptera: Pentatomidae) Can. Entomol. (IF 0.9) Pub Date : 2021-11-17 Willian Yoshio Sanomia, Fabricio Fagundes Pereira, Ivana Fernandes da Silva, Carlos Reinier Garcia Cardoso, Jéssica Terilli Lucchetta
Knowledge about the ideal host ratio per female parasitoid reared in glass tubes is important for obtaining descendants with better biological quality. The study aimed to evaluate the reproduction of Ooencyrtus submetallicus (Hymenoptera: Encyrtidae) females in egg densities of Euschistus heros (Hemiptera: Pentatomidae) to find the most adequate relationship between parasitoids and hosts aiming at
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New and little-known Canadian Lasioglossum (Dialictus) (Hymenoptera: Halictidae) and an emended key to species Can. Entomol. (IF 0.9) Pub Date : 2021-11-10 Joel Gardner, Jason Gibbs
A revised key to the 94 species of Lasioglossum (Dialictus) currently known to occur in Canada is presented, incorporating new species and taxonomic updates since the publication of the first key in 2010. Two new species, Lasioglossum (Dialictus) immigrans and Lasioglossum (Dialictus) onuferkoi, are described from Canada. Lasioglossum (D.) ascheri, L. (D.) stictaspis, and L. (D.) tegulariforme are
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Insecticidal effect of Bacillus pumilus PTB180 and Bacillus subtilis PTB185 used alone and in combination against the foxglove aphid and the melon aphid (Hemiptera: Aphididae) Can. Entomol. (IF 0.9) Pub Date : 2021-09-10 Mouna Kahia, Thi Thuy An Nguyen, Frédéric McCune, Rémi Naasz, Hani Antoun, Valérie Fournier
The foxglove aphid, Aulacorthum solani (Kaltenbach) (Hemiptera: Aphididae), and the melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae), are among the serious insect pests found in greenhouses. The efficacy of microbial control against these insects has been demonstrated and can be enhanced by the combination of different microbial agents. This study evaluated the efficacy of Bacillus pumilus
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The impact of parasitoids on diamondback moth in Europe: a life table approach Can. Entomol. (IF 0.9) Pub Date : 2021-09-16 Tim Haye, Tina Dancau, Andrew M. R. Bennett, Peter G. Mason
Diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), was first recorded in North America from Europe about 150 years ago and can be a significant pest of canola in Western Canada. Because parasitism of P. xylostella in Canada is generally low, the introduction of one or more additional exotic parasitoids from Europe is being considered to increase the suppression of P. xylostella
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Analyses of the gut bacteriomes of four important Drosophila pests Can. Entomol. (IF 0.9) Pub Date : 2021-09-30 Qingcai Lin, Yifan Zhai, Hao Chen, Dongyun Qin, Li Zheng, Huanhuan Gao
Several Drosophila species (Diptera: Drosophilidae) have become serious economic pests of berry and soft-skinned stone fruits around the world. Prominent examples are Drosophila suzukii (Matsumura), D. melanogaster (Meigen), D. hydei (Sturtevant), and D. immigrans (Sturtevant). Information on the biology and ecology of Drosophila is important for a better understanding of these important fruit pests
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Morphological and molecular phylogenetic analyses of Zepedanulus ishikawai (Arachnida: Opiliones: Laniatores: Epedanidae) in the southern part of the Ryukyu Archipelago Can. Entomol. (IF 0.9) Pub Date : 2021-09-16 Yoshimasa Kumekawa, Haruka Fujimoto, Osamu Miura, Ryo Arakawa, Jun Yokoyama, Tatsuya Fukuda
Harvestmen (Arachnida: Opiliones) are soil animals with extremely low dispersal abilities that experienced allopatric differentiation. To clarify the morphological and phylogenetic differentiation of the endemic harvestman Zepedanulus ishikawai (Suzuki, 1971) (Laniatores: Epedanidae) in the southern part of the Ryukyu Archipelago, we conducted molecular phylogenetic analyses and divergence time estimates
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A laboratory method for mass rearing the orange wheat blossom midge, Sitodiplosis mosellana (Diptera: Cecidomyiidae) Can. Entomol. (IF 0.9) Pub Date : 2021-10-08 Chaminda De Silva Weeraddana, Ian Wise, Robert J. Lamb, Sheila Wolfe, Tyler Wist, Curt A. McCartney, Marjorie A.H. Smith, Alejandro C. Costamagna
Orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), has been successfully reared in the laboratory for more than 20 years in Winnipeg, Manitoba, Canada. The rearing method has been developed to the point where it efficiently produces large numbers of wheat midge continuously under laboratory conditions for use in experiments on wheat midge biology and for screening
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Feeding performance of the larval stag beetle Aegus chelifer (Coleoptera: Lucanidae) explains adult body size variation and sexual dimorphism Can. Entomol. (IF 0.9) Pub Date : 2021-11-01 Nut Songvorawit, Buntika Areekul Butcher, Chatchawan Chaisuekul
In stag beetle larvae, food availability is considered a major cause of body size variation in adults, but this has not been explicitly tested. To evaluate wood use and the effects of food quantity on growth and adult body size, the feeding performance of the tropical stag beetle Aegus chelifer MacLeay (Coleoptera: Lucanidae), which is widely distributed in Southeast Asia, was investigated by rearing
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Elm zigzag sawfly, Aproceros leucopoda (Hymenoptera: Argidae), recorded for the first time in North America through community science Can. Entomol. (IF 0.9) Pub Date : 2021-09-23 Véronique Martel, Olivier Morin, Spencer K. Monckton, Charles S. Eiseman, Catherine Béliveau, Michel Cusson, Stephan M. Blank
The elm zigzag sawfly, Aproceros leucopoda Takeuchi (Hymenoptera: Argidae), was reported for the first time in North America during the summer of 2020. Characteristic zigzag defoliation was reported in the province of Québec, Canada, on the community science website, iNaturalist. Field trips conducted to the site resulted in the collection of live specimens (a few larvae and a cocoon from which an
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Infestation parameters for chewing lice (Phthiraptera: Amblycera, Ischnocera) parasitising true thrushes (Aves: Passeriformes: Turdidae) in Manitoba, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-07-01 Terry D. Galloway, Robert J. Lamb, Zoe D.L. Rempel
Seven species of Turdidae (Aves: Passeriformes) in Manitoba, Canada were examined for chewing lice (Phthiraptera) in 1993–2019: Turdus migratorius (N = 570), Catharus ustulatus (N = 135), Catharus guttatus (N = 49), Catharus minimus (N = 12), Catharus fuscescens (N = 1), Sialia sialis (N = 4), and Sialia currucoides (N = 3). Five species of lice on T. migratorius had a prevalence of 24.0% and a mean
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Using community science to explore the spatial distribution of the daylily gall midge (Cecidomyiidae) in Canada’s Maritimes region Can. Entomol. (IF 0.9) Pub Date : 2021-08-11 Alicia S.M.A. Cattiaux, Heather J. Caseley, Katherine L. Rutherford, Paul Manning
The daylily gall midge, Contarinia quinquenotata (Loew) (Diptera: Cecidomyiidae), is an ornamental pest of daylilies, Hemerocallis spp. Linneas (Asphodelaceae). Originally native to Asia, this pest was accidentally introduced to western North America, and it is believed to occur throughout other parts of North America even though its presence has not been confirmed. Using an online survey of gardeners
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Public transport of firewood across the Mackinac Bridge in Michigan, United States of America: origin, destination, woody taxa, and reasons for transporting firewood Can. Entomol. (IF 0.9) Pub Date : 2021-06-29 Robert A. Haack, Toby R. Petrice
Transporting firewood can spread plant pests such as the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), which was discovered in Lower Michigan, United States of America in 2002. In 2005, Michigan banned the transport of hardwood firewood northwards across the Mackinac Bridge, which connects Lower and Upper Michigan. In 2005–2011, 479 drivers of 11 commercial vehicles and
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Development of a semiochemical-based trapping technique for efficient control of Odoiporus longicollis Olivier (Coleoptera: Curculionidae) Can. Entomol. (IF 0.9) Pub Date : 2021-07-12 S. Palanichamy, T. Boopathi, S. Uma
The banana stem weevil, Odoiporus longicollis Olivier (Coleoptera: Curculionidae), is an important economic insect pest of bananas throughout the world. In this study, several important volatile substances were analysed to develop a semiochemical-based trapping technique for the control of O. longicollis. Electroantennogram responses of both sexes were associated with electroantennogram-active compounds
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Dry bolls and their association with Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae) survival through cotton fallow periods Can. Entomol. (IF 0.9) Pub Date : 2021-08-20 Willian S. do Vale, Maria A. Castellani, Victor R. de Novais, Welliny S.R. Dias, Ana Carolina S. Lima, Edenilson B. Ribeiro, Adriana D. Cardoso, Carlos A. Domingues da Silva
The boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), can remain inside dry and deformed reproductive structures of cotton, Gossypium hirsutum Linnaeus (Malvaceae), known as dry bolls, during the cotton fallow to infest the next cotton crop. In this study, the influence of cotton cultivars and sowing densities on the formation of dry bolls was evaluated. In addition, dry
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Associative learning and memory through metamorphosis in Grapholita molesta (Busck) (Lepidoptera: Tortricidae) Can. Entomol. (IF 0.9) Pub Date : 2021-08-18 Josué Sant’Ana, Roberta Tognon, Patrícia D.S. Pires, Patrícia L.F. Gregório
Learning of chemical stimuli by insects can occur during the larval or adult life stage, resulting in changes in the imago chemotaxic behaviour. There is little information on learning in Tortricidae, and associative learning through metamorphosis is unknown in this group. Here, we evaluate the influence of olfactory aversive learning in Grapholita molesta (Busck) (Lepidoptera: Tortricidae) during
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Detection of food in immature and adult stages of water scavenger beetle, Hydrophilus acuminatus (Coleoptera: Hydrophilidae) Can. Entomol. (IF 0.9) Pub Date : 2021-08-11 Toshio Inoda
The water scavenger beetle, Hydrophilus acuminatus (Motschulsky) (Coleoptera: Hydrophilidae), has two types of feeding modes: carnivorous during the larval stage and omnivorous during the adult stage. To investigate how the beetles detect food, larvae were provided with pond snails and snail visceral mass and adults were provided with algae and thawed blood worms. Larvae found snails and visceral mass
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Anelaphus villosus (Fabricius) and A. parallelus (Newman) (Coleoptera: Cerambycidae) can be accurately distinguished using body measurements and DNA barcoding Can. Entomol. (IF 0.9) Pub Date : 2021-07-28 William P. Brown, Robert Salerno, Luciana Cursino
Anelaphus villosus (Fabricius) and A. parallelus (Newman) are longhorned beetles (Coleoptera: Cerambycidae: Cerambycinae: Elaphidiini) that closely resemble each other in appearance. In practice, if antennomere 3 is distinctly longer than antennomere 4, the specimen is considered to be A. villosus, but the accuracy of this methodology is unknown. Authorities disagree about the ease of separating these
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Transovarial effect of novaluron: persistence and residual effects on Stephanitis pyrioides (Hemiptera: Tingidae) Can. Entomol. (IF 0.9) Pub Date : 2021-07-28 Shimat V. Joseph
Stephanitis pyrioides (Scott) (Hemiptera: Tingidae) is an important insect pest of azaleas, Rhododendron Linnaeus spp. (Ericaceae), in the United States of America. Because neonicotinoids, insecticides traditionally used against S. pyrioides, pose a risk to pollinators and natural enemies, nursery growers have reduced neonicotinoid use and are seeking alternative management options. Novaluron, an insect
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Long-term fruit fly monitoring and impact of the systems approach on richness and abundance Can. Entomol. (IF 0.9) Pub Date : 2021-07-19 Mayara R. de Araujo, David dos S. Martins, Maurício J. Fornazier, Keiko Uramoto, Paulo S.F. Ferreira, Roberto A. Zucchi, Wesley A.C. Godoy
We investigated ecological patterns of richness and abundance of Anastrepha fruit flies, based on a long-term series with a dataset from 1998 to 2010, subdivided into four subseries describing pest management through the systems approach (integration of different measures, at least two of which act independently, with cumulative effects), and its impact on abundance and diversity of fruit flies. Richness
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Sexual behaviour of the blister beetle Epicauta atomaria (Germar), with remarks on the bionomics of Epicauta maculata species group (Meloidae: Meloinae: Epicautini) Can. Entomol. (IF 0.9) Pub Date : 2021-07-19 María P. Campos-Soldini, Leandro S. Wagner
The sexual behaviour of the blister beetle Epicauta atomaria (Germar) (Meloidae: Meloinae: Epicautini), a pest that affects diverse crops of economic importance in South America, was evaluated for the first time under laboratory conditions. Twelve pairs of E. atomaria adults were collected from low-lying roadsides adjacent to grazed areas in Diamante, Entre Ríos, Argentina. To describe the sexual behaviour
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Diversity and community structure of mosquitoes (Diptera: Culicidae) in suburban, field, and forest habitats in Montréal, Québec, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-04-30 Christopher A. Cloutier, James W. Fyles, Christopher M. Buddle
Understanding the medical and economic impacts of mosquitoes (Diptera: Culicidae) begins with knowing their natural history and distribution, including their association with habitat types, particularly those in which human activity is high. The effects of habitat on shaping the community structure of mosquitoes were studied across periurban habitats on the island of Montréal, Québec, Canada in 2014
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Black flies (Diptera: Simuliidae) of central and northeastern Washington, United States of America, with cytogenetic emphasis on the Simulium arcticum complex Can. Entomol. (IF 0.9) Pub Date : 2021-04-22 Gerald F. Shields, John P. Shields
We made 28 collections of black flies (Diptera: Simuliidae) at 24 locations in central and northeastern Washington state, United States of America, and identified 10 species in three genera, including Simulium arcticum Malloch, which we studied cytogenetically. We analysed 745 larvae of S. arcticum cytogenetically from nine of the 11 sites where it occurred; five sites had small sample sizes. For the
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Assessment of genetic diversity and population structure of Eulaema nigrita (Hymenoptera: Apidae: Euglossini) as a factor of habitat type in Brazilian Atlantic forest fragments Can. Entomol. (IF 0.9) Pub Date : 2021-05-26 Claudinéia Pereira Costa, Clycie Aparecida da Silva Machado, Tiago Mauricio Francoy
In many organisms, habitat affects ecological and genetic diversity and, for certain species, it is expected that a large population should have higher genetic diversity than a smaller population. We analysed the genetics of males of the orchid bee, Eulaema nigrita (Hymenoptera: Apidae) and examined the links between local abundance and habitat with genetic diversity. We also investigated the impact
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Parasitoid community responds indiscriminately to fluctuating spruce budworm (Lepidoptera: Tortricidae) and other caterpillars on balsam fir (Pinaceae) Can. Entomol. (IF 0.9) Pub Date : 2021-04-22 Christopher J. Greyson-Gaito, Kevin S. McCann, Jochen Fründ, Christopher J. Lucarotti, M. Alex Smith, Eldon S. Eveleigh
The world is astoundingly variable, and organisms – from individuals to whole communities – must respond to variability to survive. One example of nature’s variability is the fluctuations in populations of spruce budworm, Choristoneura fumiferana Clemens (Lepidoptera: Tortricidae), which cycle every 35 years. In this study, we examined how a parasitoid community altered its parasitism of budworm and
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Oxycarenus breddini Bergroth, 1905 (Hemiptera: Heteroptera: Oxycarenidae): type material discovered, lectotype designated, and neotype set aside Can. Entomol. (IF 0.9) Pub Date : 2021-04-30 Geoffrey G.E. Scudder
Type material (treated as syntypes) of Oxycarenus breddini Bergroth, 1905 has been found in the Institut Royal des Sciences Naturelles de Belgique in Brussels, Belgium. A lectotype has been designated, and so the neotype is redundant.
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Anatomical impact and notes on viviparous development related to infestation by neotenic females of Stylops advarians (Strepsiptera: Stylopidae) on adult female Andrena milwaukeensis (Hymenoptera: Andrenidae) Can. Entomol. (IF 0.9) Pub Date : 2021-05-31 Zachary S. Balzer, Arthur R. Davis
Stylops advarians Pierce (Strepsiptera: Stylopidae) is a prevalent parasite of adult Andrena milwaukeensis Graenicher (Hymenoptera: Andrenidae) in Saskatoon, Saskatchewan, Canada. By dissecting adult bees and examining histological sections, we sought to determine how neotenic females of S. advarians impact female hosts of A. milwaukeensis anatomically. Adult bees with 1–3 females of S. advarians within
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The Eurasian strawberry blossom weevil, Anthonomus rubi (Herbst, 1795), is established in North America Can. Entomol. (IF 0.9) Pub Date : 2021-06-23 Michelle T. Franklin, Tracy K. Hueppelsheuser, Paul K. Abram, Patrice Bouchard, Robert S. Anderson, Gary A.P. Gibson
We report the strawberry blossom weevil, Anthonomus rubi (Herbst, 1795) (Coleoptera: Curculionidae), a species native to Europe, Asia, and North Africa, as established in British Columbia, Canada. This is the first report of A. rubi in North America. We provide a diagnosis of the species and compare it with other species of the genus Anthonomus Germar in Canada. This species is a pest of plants in
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Two adventive species of European Chrysomelidae (Coleoptera) new to North America: Cryptocephalus moraei (Cryptocephalinae) and Psylliodes dulcamarae (Galerucinae: Alticini), and the origins of adventive Chrysomelidae in Canada and United States of America Can. Entomol. (IF 0.9) Pub Date : 2021-06-17 Hume B. Douglas, Stéphane Dumont, Karine Savard, Claude Chantal
First North American records are presented for Cryptocephalus moraei (Linnaeus, 1758) (Coleoptera: Cryptocephalinae) and Psylliodes dulcamarae (Koch, 1803) (Coleoptera: Galerucinae: Alticini), as confirmed by morphology and DNA barcoding. Additional information is presented about phenology and host use for C. moraei, the first European Cryptocephalinae to be found elsewhere as conclusively adventive
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Detection of Adelges tsugae (Hemiptera: Adelgidae) wool using Velcro-covered balls Can. Entomol. (IF 0.9) Pub Date : 2021-06-04 Jeffrey G. Fidgen, Mark C. Whitmore, Chris J.K. MacQuarrie, Jean J. Turgeon
Adelges tsugae Annand (Hemiptera: Adelgidae), a nonindigenous insect pest of hemlock (Tsuga spp.) (Pinaceae) in eastern North America, spends most of its life cycle within an ovisac, which resembles a woolly white mass on twigs. We evaluated the probability of detecting adelgid wool with Velcro®-covered balls when taking an increasing number of samples per tree (field sampling) and number of trees
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Identification of morphologically challenging Delia (Diptera: Anthomyiidae) species from field vegetable crops using polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) Can. Entomol. (IF 0.9) Pub Date : 2021-06-02 Julia J. Mlynarek, Kathrin A. Sim
Root feeding by the larvae of multiple Delia species can lead to economic loss in many agricultural crops. Field vegetables are subject to infestations by a species complex composed of Delia radicum (Linnaeus) (Diptera: Anthomyiidae), a pest in brassica crops (Brassicaceae), Delia antiqua (Meigen), believed to cause the majority of crop damage in onions, and the generalists Delia florilega (Zetterstedt)
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Niche differentiation of two pupal parasitoid wasps of Musca domestica (Diptera: Muscidae): Pachycrepoideus vindemmiae and Spalangia endius (Hymenoptera: Pteromalidae) Can. Entomol. (IF 0.9) Pub Date : 2021-06-02 Sheng Zhang, Yumei Tao, Yongzhuo Chen, Pengcheng Liu, Jialu Liu, Haoyuan Hu
In nature, competing species often achieve coexistence through niche differentiation. We examined this phenomenon for Pachycrepoideus vindemmiae and Spalangia endius (Hymenoptera: Pteromalidae), two species of pupal parasitoids that are considered biological control agents of house fly, Musca domestica (Diptera: Muscidae). We examined the ability of each species, alone and in combination, to locate
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Efficacy of Phytoseiulus persimilis and Amblyseius swirskii for integrated pest management for greenhouse cucumbers under Mediterranean environmental conditions Can. Entomol. (IF 0.9) Pub Date : 2021-05-26 André Abou-Haidar, Patil Tawidian, Hana Sobh, Margaret Skinner, Bruce Parker, Yusuf Abou-Jawdah
The greenhouse cucumber pests, Bemisia tabaci (Hemiptera: Aleyrodidae), Frankliniella occidentalis (Thysanoptera: Thripidae), and Tetranychus urticae (Acari: Tetranychidae), are major threats to the production of greenhouse cucumbers (Cucurbitaceae) in Lebanon. The development of insecticide resistance by these pests has prompted the use of alternative and sustainable pest management strategies. In
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Pan trapping in habitats supporting Platanthera (Orchidaceae) shows little difference in insect family-level diversity Can. Entomol. (IF 0.9) Pub Date : 2021-05-11 Genevieve E. van der Voort, Manu E. Saunders, Jasmine K. Janes
The role of insects as pollinators within plant communities is well established, yet our knowledge of insect biodiversity in many habitats is lacking. Given the growing concern that insect biodiversity is declining, it is increasingly important to document insect assemblages from a wide range of geographic locations and habitats. Pan trapping is a common means of sampling local insect diversity. Many
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Overwintering survival of Drosophila suzukii (Diptera: Drosophilidae) in temperature regimes emulating partly protected winter conditions in a cold–temperate climate of Québec, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-03-17 Conrad Cloutier, Jean-Frédéric Guay, William Champagne-Cauchon, Valérie Fournier
Field-acclimated Drosophila suzukii (Diptera: Drosophilidae) from the Saguenay–Lac-Saint-Jean region, Québec, Canada, were examined over two years for winter survival, under the hypothesis that flies select protected overwintering microhabitats. In 2016–2017, flies trapped alive in the field or emerged from infested fruits were submitted to four winter regimes of either constant or daily fluctuating
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Dung-beetle (Coleoptera: Scarabaeidae: Scarabaeinae) assemblage in two livestock production systems in a southern Mexican High Plateau semiarid ecosystem Can. Entomol. (IF 0.9) Pub Date : 2021-03-09 Benjamín Hernández, José L. Barragán-Ramírez, José L. Navarrete-Heredia, Georgina Adriana Quiroz-Rocha, Miguel Vásquez-Bolaños
In this work, we used measures of diversity and biogeographic patterns to evaluate the response of dung-beetle assemblages (Coleoptera: Scarabaeidae: Scarabaeinae) at two cattle ranches with different management systems on the southern Mexican High Plateau. The number of individuals and biomass were used as the primary diversity attributes of the assemblage. The 1D and 2D true diversity indexes of
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De novo assembly and characterisation of the transcriptome of the Beringian pseudoscorpion Can. Entomol. (IF 0.9) Pub Date : 2021-02-24 Jacqueline E. Lebenzon, Jantina Toxopeus, Susan E. Anthony, Brent J. Sinclair
Pseudoscorpions are microarthropods that are distributed from the equator to beyond the Arctic circle. Wyochernes asiaticus (Arachnida: Pseudoscorpiones: Chernetidae) is the northernmost species of pseudoscorpion and is broadly distributed in Beringia, an Arctic and sub-Arctic region that remained unglaciated during the last glacial maximum. Wyochernes asiaticus is anoxia tolerant and has moderate
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Source and spread dynamics of mountain pine beetle in central Alberta, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-02-24 Victor A. Shegelski, Erin O. Campbell, Kirsten M. Thompson, Caroline M. Whitehouse, Felix A.H. Sperling
The mountain pine beetle (Dendroctonus ponderosae Hopkins) (Coleoptera: Curculionidae) is a significant destructive force in the pine forests of western Canada and has the capacity to spread east into a novel host tree species, jack pine (Pinaceae). New populations have been documented in central Alberta, Canada, but the source populations for these outbreaks have yet to be identified. In this study
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Developmental and reproductive effects of clothianidin exposure in monarch butterflies (Lepidoptera: Nymphalidae) Can. Entomol. (IF 0.9) Pub Date : 2021-03-16 Alana A.E. Wilcox, Amy E.M. Newman, D. Ryan Norris
Neonicotinoid insecticides are used to reduce crop damage caused by insect pests, but sublethal levels could affect development and reproduction in nontarget insects, such as monarch butterflies (Danaus plexippus) (Lepidoptera: Nymphalidae). To investigate the impact of field-realistic concentrations of the neonicotinoid clothianidin on monarch butterflies, we grew swamp milkweed (Asclepias incarnata)
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Revealing the identity of Mordellistena minima and M. pseudorhenana (Coleoptera: Mordellidae) based on re-examined type material and DNA barcodes, with new distributional records and comments on morphological variability Can. Entomol. (IF 0.9) Pub Date : 2021-03-10 Dávid Selnekovič, Katarína Goffová, Ján Kodada, Roberta Improta
The current interpretation of two common European species, Mordellistena minima Costa, 1854 and M. pseudorhenana Ermisch, 1977, is based on misidentification. The confusion regarding the identity of the species is fixed based on the revised type material. Here, the species are redescribed, and diagnostic characters are provided. Mordellistena pseudorhenana is revalidated. Mordellistena emeryi Schilsky
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From branch to bench: establishing wild spruce budworm populations into laboratory colonies for the exploration of local adaptation and plasticity Can. Entomol. (IF 0.9) Pub Date : 2021-02-24 K. Perrault, A.A. Wardlaw, J.N. Candau, C.L. Irwin, M. Demidovich, C.J.K. MacQuarrie, A.D. Roe
Spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae), is a destructive defoliator found throughout the Nearctic boreal forest. This pest has a broad geographic range and shows regional variation in key life history traits. These population differences may represent important adaptations to local environmental conditions and reflect underlying genetic diversity. Existing laboratory
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Phylogenetic comparative methods reveal higher wing loading in ant-attended Tuberculatus aphids (Hemiptera: Aphididae)—CORRIGENDUM Can. Entomol. (IF 0.9) Pub Date : 2021-04-30 Izumi Yao
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Oviposition after sex: mated Anastrepha ludens (Diptera: Tephritidae) females increase oviposition without receiving an ejaculate Can. Entomol. (IF 0.9) Pub Date : 2021-04-22 M. Reyes-Hernández, G. Córdova-García, F. Díaz-Fleischer, N. Flores-Estévez, D. Pérez-Staples
Mating and receiving ejaculate can alter female insect physiology and postcopulatory behaviour. During mating, females receive both internal and external stimuli and different components in the ejaculate. In insects, these components consist mostly of sperm and male accessory gland secretions. Some of the most important changes associated with receiving male accessory gland secretions are a reduction
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Diversity, rate, and distribution of wheat midge parasitism in the Peace River region of Alberta, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-04-14 S.V. Dufton, R.A. Laird, K.D. Floate, J.K. Otani
Wheat midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), is a major pest of wheat (Poaceae) that was first reported in the Peace River region of northwestern Alberta, Canada in 2011. Although parasitism is an important factor of mortality in wheat midge elsewhere, little is known about the prevalence, species, or distribution of wheat midge parasitoids in the Peace River region. To address
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Do sexual gonadic maturity and age determine habitat occupancy of Canthon cyanellus LeConte, 1859 (Coleoptera: Scarabaeidae)? Can. Entomol. (IF 0.9) Pub Date : 2021-04-14 Renato Portela Salomão, Lucrecia Arellano, Carmen Huerta, Jorge Leonel León-Cortés
High-quality habitats presumably have the resources required to sustain relatively high rates of survival and reproduction. We assessed how habitat type and local environmental conditions determine the distribution of individuals of Canthon cyanellus (Coleoptera: Scarabaeidae), an eurytopic dung beetle, according to age category and sexual gonadic maturity. Beetles were surveyed in forest fragments
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Annual reproductive phenology of the coprophagous beetle Dichotomius satanas (Coleoptera: Scarabaeidae, Scarabaeinae) of the cloud forest in eastern Mexico Can. Entomol. (IF 0.9) Pub Date : 2021-01-08 Julliana Barretto, Magdalena Cruz, Federico Escobar
Reproductive phenology of organisms is modulated by biotic and abiotic factors, with direct effects on the demography. This study describes the annual reproductive phenology of Dichotomius satanas (Harold, 1867) (Coleoptera: Scarabaeidae, Scarabaeinae) of the cloud forest in eastern Mexico, through the morphological changes in the reproductive systems of individuals and their relationship with climatic
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Overwintering behaviour of the skipper fly (Diptera: Piophilidae) of forensic importance in Québec, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-01-11 Julie-Éléonore Maisonhaute, Shari L. Forbes
Laboratory experiments and field observations from August 2019 to April 2020 demonstrated that skipper flies (Diptera: Piophilidae) overwinter as larvae and likely present an obligatory winter diapause in Québec, Canada. Diapause was confirmed by the very few emergences of adults in the laboratory following collection from carrion at the end of summer and in fall, the migration of larvae deep in the
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Seasonal emergence patterns of Sitodiplosis mosellana (Diptera: Cecidomyiidae) in the Peace River region, Alberta, Canada Can. Entomol. (IF 0.9) Pub Date : 2021-01-15 Amanda Jorgensen, Maya L. Evenden, Owen Olfert, Jennifer Otani
Wheat midge, Sitodiplosis mosellana Géhin (Diptera: Cecidomyiidae), is an invasive pest of wheat, Triticum spp. (Poaceae), in North America and is found in all wheat-growing regions of the world. Wheat midge biology, particularly post-diapause emergence of adults, varies with geographic region. The biology of wheat midge has not previously been examined in the northernmost area of its range in Canada
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Evaluation of compounds for repellency of the multicoloured Asian lady beetle (Coleoptera: Coccinellidae) in vineyards Can. Entomol. (IF 0.9) Pub Date : 2021-02-02 Erik Glemser, Wendy McFadden-Smith, Jean-Philippe Parent
The multicoloured Asian lady beetle, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), has become a pest in North American vineyards during harvest due to its adverse effects on wine quality. This study evaluated alternative products that may be suitable for use in vineyards as repellents to the beetle. Products were screened as repellent for multicoloured Asian lady beetle in short-term laboratory
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Disruption of coniferophagous bark beetle (Coleoptera: Curculionidae: Scolytinae) mass attack using angiosperm nonhost volatiles: from concept to operational use Can. Entomol. (IF 0.9) Pub Date : 2020-11-13 Dezene P.W. Huber, Christopher J. Fettig, John H. Borden
Although the use of nonhost plants intercropped among host crops has been a standard agricultural practice for reducing insect herbivory for millennia, the use of nonhost signals to deter forest pests is much more recent, having been developed over the past several decades. Early exploratory studies with synthetic nonhost volatile semiochemicals led to targeted electrophysiological and trapping experiments
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Semiochemicals for management of the southern pine beetle (Coleoptera: Curculionidae: Scolytinae): successes, failures, and obstacles to progress Can. Entomol. (IF 0.9) Pub Date : 2020-12-04 Brian T. Sullivan, Stephen R. Clarke
The southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae: Scolytinae), is among the most destructive bark beetle pests of pines (Pinaceae) of the southeast and mid-Atlantic United States of America, Mexico, and Central America. Numerous volatile compounds can stimulate or reduce attraction of the beetle, but efforts to incorporate these into effective, practical technologies
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3-Methylcyclohex-2-en-1-one and the Douglas-fir beetle (Coleoptera: Curculionidae): history of successful bark beetle pheromone treatments Can. Entomol. (IF 0.9) Pub Date : 2020-11-13 Darrell W. Ross
This paper reviews the literature on the identification of 3-methylcyclohex-2-en-1-one (MCH) as the antiaggregation pheromone of the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) (Coleoptera: Curculionidae) and the development of successful management applications using the pheromone. Previously unpublished data from two studies on novel uses of MCH are included. The successful development
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Semiochemicals for bark beetle (Coleoptera: Curculionidae) management in western North America: where do we go from here? Can. Entomol. (IF 0.9) Pub Date : 2020-11-27 Nancy E. Gillette, Christopher J. Fettig
This paper is intended as an assessment of the state of knowledge and development of semiochemical methods for control of bark beetles (Coleoptera: Curculionidae) in western North America and as a roadmap for future research and development in this field. It is based on a keynote presentation given at the symposium Managing Bark and Ambrosia Beetles with Semiochemicals, held in 2018 in Vancouver, British
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Contribution to the knowledge of the endemic Australian genus Binburrum Pollock, 1995 (Coleoptera: Pyrochroidae: Pilipalpinae), with description of three new species Can. Entomol. (IF 0.9) Pub Date : 2020-12-30 Yun Hsiao, Darren A. Pollock
Binburrum Pollock, 1995 is a small group of fire-coloured beetles (Tenebrionoidea: Pyrochroidae: Pilipalpinae) endemic to Australia with five described species. Herein, three new species of Binburrum – B. articuno (southeastern South Australia), B. moltres (northeastern Queensland, Australia), and B. zapdos (northeastern Queensland) – are described based on comparative anatomy, highlighting the underestimated
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Alcedoffula alcyonae Carriker (Phthiraptera: Ischnocera: Philopteridae) infesting belted kingfisher, Megaceryle alcyon (Linnaeus) (Aves: Coraciiformes, Alcedinidae), in Manitoba, Canada Can. Entomol. (IF 0.9) Pub Date : 2020-12-23 Terry D. Galloway
Forty-one belted kingfishers, Megaceryle alcyon (Linnaeus) (Aves: Coraciiformes: Alcedinidae), from Manitoba, Canada were examined for ectoparasites in 1995–2020. One species of chewing louse, Alcedoffula alcyonae Carriker (Phthiraptera: Ischnocera: Philopteridae), infested 48.8% of hosts. The mean intensity of infestation was 17.1, and mean abundance was 8.5 lice per bird. Distribution of infestation
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A first Canadian and three new Québec records of Cicadellidae (Hemiptera) in grapevine (Vitaceae): potential virus vectors – CORRIGENDUM Can. Entomol. (IF 0.9) Pub Date : 2020-12-22 I.E. Ben Moussa,P. Lemoyne,C. Beaulieu,J. Kits,M.L. Fall
© The Author(s), 2020. Published by Cambridge University Press on behalf of the Entomological Society of Canada. Cite this article: Ben Moussa, I.E., Lemoyne, P., Beaulieu, C., Kits, J., and Fall, M.L. 2021. A first Canadian and three new Québec records of Cicadellidae (Hemiptera) in grapevine (Vitaceae): potential virus vectors – CORRIGENDUM. The Canadian Entomologist, 153: 257. https://doi.org/10