Grubbs Scott A, Dewalt R Edward
Department of Biology and Center for Biodiversity Studies, Western Kentucky University, Bowling Green, KY 42101 USA.
Zookeys. 2012(194):1-15. doi: 10.3897/zookeys.194.2972. Epub 2012 May 17.
A new Nearctic species of Perlidae (Insecta, Plecoptera), Perlesta ephelidasp. n., is described from the male, female, and egg stages. This species has been previously reported as, or confused with, Perlesta shubuta Stark from several central and eastern U.S. states. Perlesta ephelida is distinctive from Perlesta shubuta and other regional Nearctic congeners mainly according to male genitalic and egg characteristics. Perlesta ephelida is a widely-distributed eastern Nearctic species, whereas Perlesta shubuta appears to be restricted to a narrow latitudinal belt in the Gulf Coast region from Louisiana east conservatively to the Florida panhandle. The egg of Perlesta shubuta is depicted with scanning electron microscopy for the first time.
描述了一种来自新北区的叉襀科(昆虫纲,襀翅目)新物种——珀氏叉襀(学名:Perlesta ephelida),涵盖了雄性、雌性和卵期。此前在美国中部和东部的几个州,该物种曾被报道为珀氏叉襀(学名:Perlesta shubuta Stark),或与之混淆。珀氏叉襀与珀氏叉襀及其他新北区的同属近缘物种主要在雄性生殖器和卵的特征上存在差异。珀氏叉襀是广泛分布于新北区东部的物种,而珀氏叉襀似乎局限于从路易斯安那州东部到佛罗里达狭长地带的墨西哥湾沿岸地区一个狭窄的纬度带内。首次利用扫描电子显微镜描绘了珀氏叉襀的卵。