Xing Changyue, Shih Chungkun, Zhao Yunyun, Ren Dong
Key Lab of Insect Evolution and Environmental Change, College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China.
Zootaxa. 2016 Dec 5;4205(2):zootaxa.4205.2.7. doi: 10.11646/zootaxa.4205.2.7.
Two new genera, each with a new species, Perissoderma triangulum gen. et sp. nov. and Abrderma gracilentum gen. et sp. nov., of the family Protodiplatyidae are described from the latest Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. They are the first records of Protodiplatyidae from the latest Middle Jurassic Daohugou locality. Both new genera are assigned to Protodiplatyidae based mainly on diagnostic characters of antennae, pronotum, tegmina, tarsi and the distinct long, slender, multi-segmented cerci. We summarize the distributions and ages of all described fossil Archidermaptera and infer that the Dermaptera might have originated in Eurasia and started their diversification and migration to a worldwide distribution. The new taxon of Abrderma gracilentum gen. et sp. nov. provides one more example of an early earwig with well-preserved pentamerous tarsi on the hind leg.
在中国内蒙古道虎沟中侏罗世晚期九龙山组中,发现了原双尾蝎蛉科的两个新属,各含一个新种,即三角异皮蝎蛉属及种Perissoderma triangulum gen. et sp. nov.和细弱窄皮蝎蛉属及种Abrderma gracilentum gen. et sp. nov.。它们是中侏罗世晚期道虎沟地区原双尾蝎蛉科的首次记录。这两个新属被归入原双尾蝎蛉科,主要依据是触角、前胸背板、翅、跗节的鉴别特征以及独特的长而细的多节尾须。我们总结了所有已描述的化石原革翅目昆虫的分布和年代,并推断革翅目可能起源于欧亚大陆,随后开始分化并向全球扩散。新分类单元细弱窄皮蝎蛉属及种Abrderma gracilentum gen. et sp. nov.为后腿上保存完好的五节跗节的早期蠼螋又提供了一个实例。