内蒙古贺兰山自然保护区蝗虫的调查(直翅目)

记述2010年7-8月间在内蒙古贺兰山地区蝗虫的调查。共采到蝗虫42种,分属于2总科7科23属,内有6新种和1个雌性新发现,即网翅蝗科Arcypteridae的贺兰山牧草蝗Omocestushelanshanensis sp.nov.黑胫牧草蝗Omocestus nigritihialis sp.nov.槌角蝗科Gomphoceridae的贺兰山棒角蝗Dasyhippus helanshanensis sp.nov.及剑角蝗科Acrididae的白纹金色蝗Chrysacrisalbonema sp.nov.拟短翅拟埃蝗Pseudoeosyllina brevipennisoide sp.nov.贺兰山拟埃蝗P.helanshanensis sp.nov.并有黑翅牧草蝗Omocestus nigripeannis Zheng雌性新发现。附有全部种类各录和分布.模式标本保存于陕西师范大学动物研究所昆虫标本室.

A survey of grasshoppers from Helan Mountain National Reserve in Inner Mongolia(Orthoptera)

42 species of grasshoppers are involved in this survey,which belong to 2 superfamilies,7 families and 23 genera.Among them 6 species are described as new to the field,such an Omocestus helanshanensis sp.nov.,Omocestus nigritibialis sp.nov.,Dasyhippus helanshanensis sp.nov.,Chrysacris albonema sp.nov.,Pseudoeosyllina brevipennisoides sp.nov.,Pseudoeoscyllina helanshanensis sp.nov.and Omocestus nigripennis Zheng new female are discovered.Type specimens are deposited in the Institute of Zoology,Shaanxi Normal University.1.Omocestus helanshanensis sp.nov.(Figs.1)This new species is allied to Omocestus peteraeus(Bris.).1815.but differs in:1) vertical diameter of eye 1.66(♂) or 2.5(♀) times of subocular furrow;2) lateral keels of pronotum are in prozona;3) length of metazona 1.25 times of prozona;4) width of medial area as width as cubital area(♂);5) tegmina reaching over the top of hind femur(♀);6) lateral lope of ventral values larger.Length of body: ♂12～12.5 mm,♀16.5～18 mm;Length of pronotum: ♂3～3.5 mm,♀3.3～4 mm;Length of elytra: ♂10～11 mm,♀11～14 mm;Length of hind femur: ♂8.5～9.5 mm,♀8.5～11 mm.Holotype♂,Inner Mongolia: Shuimogou,105°9′E,38°9′N,9-Sept-2010,collected by Zeng Hui-hua and Zhang Hong-li.Paratypes 1♂2♀,same data as holotype.2.Omocestus nigritibialis sp.nov.(Figs.2)This new species is allied to Omocestus helanshanensis sp.nov.,but differs in: 1) the maximum width between lateral keels of pronotum 2.75 times of its minimum width;2) width of radial area wider than that of subcostal area;3) width of medial area 1.3 times cubital area;4) hind tibia black.Length of body: ♂12～13.5 mm,♀19.5～20 mm;Length of pronotum: ♂2～2.5 mm,♀4～4.5 mm;Length of elytra: ♂10～11.5 mm,♀13～14 mm;Length of hind femur: ♂8～8.5 mm,♀9～11 mm.Holotype♂,Inner Mongolia: Yaoba,105°7′E,28°5′N,14-Sept-2010,collected by Zeng Hui-Hua and Zhang Hong-Li.Paratypes 7♂3♀,same data as holotype.1♂1♀,Inner Mongolia: Shuimogou,105°9′E,38°9′N,9-Sept-2010,collected by Zeng Hui-hua and Zhang Hong-li.3.Dasyhippus helanshanensis sp.nov.(Figs.3)This new species is allied to Dasyhippus barbipes(Fischer-Waldheim,1846),but differs in :1) top of antenna obtuse;2) vertical diameter of eye 1.2 times of subocular furrow;3) length of foveola 3 times its width;4) length of tegmina 3.4 times its width;5) top of tegmina wide round;6) width of costal area 4 times subcostal area;7) width of medial area 2 times cubital area;8) fore and medium tibia of male equal in width;9) lower side of fore tibia smooth;10) with a triangular process in the middle of lateral margin of anal plate of male.Length of body: ♂14 mm;Length of pronotum: ♂3 mm;Length of elgtra: ♂9 mm;Length of hind femur: ♂9 mm.Holotype ♂,Inner Mongolia: Gulaben,106°1′E,39°1′N,29-July-2010,collected by Zeng Hui-hua and Zhang Hong-li.