Menochilus sexmaculatus and Propylea dissecta (Coleoptera: Coccinellidae) are predaceous ladybird beetles with immense biological control potential. The morphology of the antennae of the adults along with the diversity and distribution of sensilla were investigated using a scanning electron microscope as they are the main sensory organs involved in chemical communication, thermo-reception, materecognition, gustation, etc. The antennae of males and females in both species were clavate and consisted of three parts: scape, pedicel and a 9-segmented flagellum. The antennae of male and female P. dissecta were significantly longer than those of M. sexmaculatus despite their overall body size being smaller, probably due to the much longer F9 flagellomere in P. dissecta. Antennae of female ladybirds of both species exhibited sexual dimorphism in being longer than those of males. Scape was longer than other antennal parts in both species of ladybirds. There was a great diversity of sensilla with most of them on the ninth-flagellomere. We identified nine types of sensillum: chaetica, trichoidea, basiconica, Böhm bristles, campaniformia, placoidea, coeloconica, sporangia and styloconica. Coeloconica were restricted to flagellomere F8 in male P. dissecta and female M. sexmaculatus, respectively, indicating sexual dimorphism and male-related functions of

中文翻译：

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食性瓢虫，月季il和Propylea dissecta的触角形态和感官

月季性性昆虫和Propylea dissecta（鞘翅目：球虫）是具有巨大生物防治潜力的早产瓢虫甲虫。使用扫描电子显微镜研究了成年人触角的形态以及感官的多样性和分布，因为它们是涉及化学通讯，热接收，母体识别，味觉等的主要感觉器官。这两个物种中的雌性都是棒状的，由三部分组成：花scape，花梗和9节鞭毛。雄性和雌性P. dissecta的触角显着长于雌性M. sexmaculatus，尽管它们的整体体型较小，这可能是由于其在解剖中的F9鞭毛长得多。两种物种的雌性瓢虫的触角都比雄性更长，表现出性二态性。在两种瓢虫中，花cap都比其他触角部分长。感官千差万别，大多数位于第九鞭毛。我们确定了九种感觉类型：chaetica，trichoidea，basiconica，Böhm刚毛，桔梗，placoidea，coeloconica，孢子囊和styloconica。鞘脂虫分别在雄性假单胞菌和雌性M. sexmaculatus中被限制在鞭毛F8上，表明性异型和雄性相关功能 桔梗，侧柏，鞘翅目，孢子囊和styloconica。鞘脂虫分别在雄性假单胞菌和雌性M. sexmaculatus中被限制在鞭毛F8上，表明性异型和雄性相关功能 桔梗，侧柏，鞘翅目，孢子囊和styloconica。鞘脂虫分别在雄性假单胞菌和雌性M. sexmaculatus中被限制在鞭毛F8上，表明性异型和雄性相关功能