A new Libnotes (Laosa) crane fly (Diptera: Limoniidae) from China with a key to Chinese species

老挝亮大蚊亚属中国一新种及分种检索表(双翅目:沼大蚊科)

The subgenus Laosa Edwards,1926 is a small group within the genus Libnotes Westwood,1876with 21 species known worldwide.Here,one new Laosa crane fly from China,L.(L.)chikunyangi sp.nov.,is described and illustrated as new to science,increasing the number of Chinese Laosa species to six.This new species can be distinguished from congeners by its body color,wing pattern and venation.A key to all Chinese Laosa species is presented.

老挝亮大蚊亚属是亮大蚊属中的较小类群,世界仅知21种。本研究记述采自中国的该亚属1新种——杨氏亮大蚊,将该亚属在中国的种类增加至6种。新种可以通过体色、翅斑和翅脉的特征与近似种区分。本研究还提供了老挝亮大蚊亚属所有中国种类的分种检索表。