Chagnon Marie-Eve, Sinclair Bradley J
Department of Natural Resource Sciences, McGill University, Macdonald Campus, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada.
Zootaxa. 2020 Sep 23;4853(3):zootaxa.4853.3.3. doi: 10.11646/zootaxa.4853.3.3.
The Nearctic species of Gimnomera Rondani are revised and includes eight species, of which three are new to science (G. aquilonia sp. nov., G. cerea (Coquillett), G. cuneiventris (Zetterstedt), G. incisurata Malloch, G. subvittata (Malloch), G. terrywheeleri sp. nov., G. tibialis (Malloch), G. vockerothi sp. nov.). Gimnomera cuneiventris is newly recognized as Holarctic in distribution. Gimnomera fasciventris Malloch is removed and transferred to the genus Acerocnema, comb. nov. An additional Nearctic species is recognized but not described due to lack of male specimens. Species descriptions, diagnoses and distribution maps are presented, including images of the male terminalia as well as additional diagnostic characters. A key to the Nearctic species is also provided. A morphological cladistic analysis of 12 species reveals that the Nearctic and Palearctic species do not form separate monophyletic groups. COI mitochondrial DNA barcode sequences were obtained for eight Nearctic species of Gimnomera.
对北美洲地区的吉诺美拉属（Gimnomera）隆达尼（Rondani）物种进行了修订，共包括8个物种，其中3个为科学新发现物种（新物种阿基洛尼亚吉诺美拉（G. aquilonia sp. nov.）、蜡质吉诺美拉（G. cerea (Coquillett)）、楔腹吉诺美拉（G. cuneiventris (Zetterstedt)）、刻痕吉诺美拉（G. incisurata Malloch）、亚带吉诺美拉（G. subvittata (Malloch)）、特里·惠勒氏吉诺美拉（G. terrywheeleri sp. nov.）、胫节吉诺美拉（G. tibialis (Malloch)）、沃克罗氏吉诺美拉（G. vockerothi sp. nov.））。楔腹吉诺美拉在分布上被新认定为全北区物种。束腹吉诺美拉（Gimnomera fasciventris Malloch）被移除，并转移至Acerocnema属，新组合。另外一个北美洲地区物种因缺少雄性标本而被识别但未被描述。文中给出了物种描述、诊断及分布图，包括雄性外生殖器图像以及其他诊断特征。还提供了北美洲地区物种检索表。对12个物种进行的形态支序分析表明，北美洲地区和古北区物种并未形成单独的单系类群。获取了北美洲地区8种吉诺美拉的细胞色素氧化酶亚基I（COI）线粒体DNA条形码序列。
