title: First record of the fossil snakefly genus Mesoraphidia (Insecta: Raphidioptera: Mesoraphidiidae) from the Middle Jurassic of China, with description of a new species.
abstract: Mesoraphidia daohugouensis sp. nov. is described from the Middle Jurassic Jiulongshan Formation of Inner Mongolia, China. It is diagnosed by the following character states: subquadrate pronotum, narrowly elliptical forewing, distally darkened pterostigma closed respectively by a proximal costal crossvein and a distal radial veinlet, absence of pterostigmal crossvein. The new species represents the first record of Mesoraphidiinae from the Middle Jurassic of China.
authors.affiliation: Department of Entomology, China Agricultural University, Beijing 100193, China; Email: unknown.
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Lü
authors.affiliation: Department of Entomology, China Agricultural University, Beijing 100193, China; Email: xingyue_liu@yahoo.com.
authors.forename: Xingyue
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Lab of Insect Evolution and Environmental Change, College of Life Sciences, Capital Normal University, Beijing 100037, China; Email: rendong@mail.cnu.edu.cn.
authors.forename: Ren
authors.initials: R
authors.lastname: Dong
mesh_terms: D000818:Animals; D049628:Body Size; D002681:China; D005260:Female; D005580:Fossils / Q000033:anatomy & histology*; D007313:Insecta / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D008297:Male; D009929:Organ Size; D014921:Wings, Animal / Q000033:anatomy & histology / Q000254:growth & development