ABSTRACT

In this study, a new species of Macrostemum is proposed based on adult males from Pernambuco state, Brazil. The new species can be diagnosed from its congeners mainly by the segment X with apex acuminate in lateral view, having a pronounced, narrow, deep, and U-shaped incision in dorsal view, by the presence of subbasal lateral setal warts, and by the dumbbell-shaped phallotremal sclerite in dorsal view. A key of male Neotropical Macrostemum species is also presented. Additionally, we provide five new caddisfly records for the Pernambuco state (Cernotina longispina, Helicopsyche tapadas, Macronema fragile, Triplectides gracilis, and Triplectides neotropicus); two of them constitute new records for the Brazilian Northeast region (Helicopsyche tapadas and Triplectides neotropicus), with Helicopsyche tapadas being recorded for the first time in the country.

http://www.zoobank.org/urn:lsid:zoobank.org:act:E5358069-8B34-4FCA-A69B-ADAC38877157

摘要

在这项研究中，基于巴西伯南布哥州的成年雄性提出了一种新的Macrostemum物种。新种的诊断主要通过X节段，侧视先尖渐尖，背侧有明显、狭窄、深、U形的切口，存在基底下侧刚突疣，以及背面观哑铃形阴茎硬骨片。还介绍了雄性新热带巨茎物种的关键。此外，我们还为伯南布哥州提供了五个新的石蛾记录（Cernotina longispina、Helicopsyche tapadas、Macronema 脆弱、Triplectides gracilis和Triplectides neotropicus）；其中两项创造了巴西东北地区的新纪录（Helicopsyche Tapadas和Triplectides neotropicus )，在该国首次记录了Helicopsyche Tapadas 。

http://www.zoobank.org/urn:lsid:zoobank.org:act:E5358069-8B34-4FCA-A69B-ADAC38877157