Two new kalligrammatids (Insecta, Neuroptera) from the Middle Jurassic of Daohugou, Inner Mongolia, China

Abstract

A new genus and two new species of kalligrammatid lacewings (Insecta, Neuroptera), Kalligramma paradoxum sp. nov. and Huiyingogramma formosum gen. et sp. nov., are described and figured, based on two well-preserved forewings from the Middle Jurassic of Daohugou, Inner Mongolia, China. Kalligramma paradoxum sp. nov. can be distinguished from other known Kalligramma species based on forewing characters (e.g., wing shape, costal space, branches of Rs, eye-spot). Huiyingogramma gen. nov. is characterized by a distinct humeral recurrent vein, relatively broad costal space with well-forked costal veinlets, well-developed eye-spot and dense crossveins over the entire wing.

根据中国内蒙古道虎沟中侏罗统保存完好的前翅, 我们描述并图示了kalligrammatid草蛉 (昆虫纲, 脉翅目) 的一个新属和两个新种, Kalligramma paradoxum sp. nov.和Huiyingogramma formosum gen. et sp. nov。根据前翅特征 (例如, 翼状、翅缘空间、分支和眼点), 我们可将 Kalligramma paradoxum sp. nov. 与其它已知Kalligramma种区别开来。 Huiyingogramma gen. nov.的特点是独特的肱骨重复脉、相对宽广的翅缘空间 (具分叉的翅缘小脉) 、发达的眼点和在整个翅上密集分布的横脉。

Key words:

• Neuroptera
• Kalligrammatidae
• Kalligramma
• Huiyingogramma
• eye-spot
• Middle Jurassic
• China

Acknowledgements

We are grateful to Qianping Lei (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences) for her kind help. This research was supported by National Basic Research Program of China (Grant No. 2012CB821900) and National Natural Science Foundation of China (Grant Nos. 41272013, 41002006, J1210006).