宁蒙地区蝗虫二新种(直翅目:蝗总科)

Two new species of grasshoppers from Ningxia and Inner mongolia(Orthoptera: Acridoidea)

记述了采自宁夏和内蒙古地区蝗虫二新种．宽中域雏蝗Ｃｈｏｒｔｈｉｐｐｕｓａｍ－ｐｌｉｍｅｄｉｌｏｃｕｓｓｐ．ｎ．近似于Ｃｈ．ｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓＬｉｕ及Ｃｈ．ｈｏｒｑｉｎｅｎｓｉｓＬｉｅｔＹｉｎ，其区别于两者为：颜面隆起全长具纵沟；触角中段节长为宽的２．５～２．６倍；前翅超过腹端；缘前脉域超过前翅的中部；中脉域宽大于肘脉域宽的７倍；雄性不具眼后带．鄂托克束颈蝗Ｓｐｈｉｎｇｏｎｏｔｕｓｏｔｏｇｅｎｓｉｓｓｐ．ｎ．近似于Ｓｐ．ｓａｌｉｎｕｓ（Ｐａｌａｓ），区别为：前胸背板后缘明显角形；前翅暗带之间的透明带宽度明显狭于后翅暗带的宽度；前翅中部暗带宽几与后翅暗带等宽；后翅暗纹不达内缘；

This paper deals with two new species of Chorthippus and Sphingonotus from Ningxia and Inner Mongolia. Type specimens are deposited in the Institute of Zoology, Shaanxi Normal University. Chorthippus amplimedilocus sp. nov.(figs. 1) This new species is similar to Chorthippus changbaishanensis Liu and Chorthippus horqinensis Li et Yin, but differs from both in: 1) frontal ridge with longitudinal sulcus the whole length; 2) the length of middle segments of antenna longer than its width about 2.5～2.6 times; 3) elytra reaching behind the top of abdomen (♀); 4) precosta area exceed the middle of elytra; 5) the width of median area longer than the width of cubital area about 7 times; 6) without dark band behind the eyes. Length of body: ♂16 mm～17 mm, ♀19 mm～22 mm. Length of pronotum: ♂3 mm～4 mm, ♀3.5 mm～4 mm. Length of elytra: ♂9 mm～13 mm, ♀14 mm～16 mm. Length of hind femur: ♂9 mm～11 mm, ♀10 mm～13 mm. Holotype ♂, allotype ♀, paratypes 5 ♂♂, 4 ♀♀, Ningxia:Liupanshan (Xinmin), 11-08-1983;2♀♀, Liupanshan(Longtan), 30-07-1983.collected by Yang Caixia. Sphingonotus otogensis sp. nov.(figs.2) This new species is allied to Sphingonotus salinus (Pallas), but differs from the latter by the following characters: 1) hind margin of pronotum distinctly angulate; 2) the width of transparent band between dark bands of elytra distinctly narrower than the width of dark band of hind wing; 3) the width of middle dark band of elytra equal to that of the dark band of hind wing; 4) the top of dark band not reaching the inner margin of hind wing; 5) with three large black spots in the top of hind wing. Length of body: ♂24 mm. Length of pronotum: ♂4 mm. Length of elytra: ♂25 mm. Length of hind femur: ♂11 mm. Holotype ♂, Inner Mongolia: Otoqenqi, 21-07-1992, collected by Yang Caixia.