滇西横断山地区短翼蚱科四新种记述(直翅目:蚱总科)

Four New Species of Metrodoridae (Orthoptera: Tetrigoidea) form Hengduan Mountains Region Western of Yunnan

记述采自云南省西部横断山地区短翼蚱科4新种,即无量山大磨蚱Macromotettix wuliangshana, sp. nov.,小翅波蚱Bolivaritettix microptera, sp. nov.,片马波蚱Bolivaritettix pianmaensis, sp. nov.及无量山波蚱Bolivaritettix wuliangshanensis, sp. nov.。模式标本保存于西南林学院保护生物学院昆虫标本室。

In the present paper, four new species of Metrodoridae are described. Type specimens are deposited in the Southwest Forestry College. 1. Macromotettix wuliangshana, sp. nov. (Figs. 1,2) This new species is allied to Macromotettix yaoshanensis Zheng et Jiang and Macromotettix luoxiaoshanensis Zheng et Fu. It differs from both by: 1) width of vertex narrower than the width of an eye; 2) disc of pronotum with few and scattered tubercles; 3) in profile, upper margin of pronotum wave like; 4) hind process of pronotum reaching the top of hind femur; 5) hind wing reaching the top of hind process. It differs from the former by: 1) head protruded upward the pronotum; 2) hind tibia black, with two yellow bands in the middle. It differs from the latter by the lateral keels of prozona parallel. Length of body: ♂8 mm; length of pronotum: ♂7 mm; length of hind femur: ♂5 mm. Holotype ♂, Yunnan: Jingdong, 1150 m, 100°9′E, 24°8′N, 28-Ⅴ-2002, collected by Ou Xiaohong. 2. Bolivaritettix microptera, sp. nov. (Figs. 3,4) This new species is allied to Bolivaritettix circocephalus Zheng, but differs in: 1) width of vertex 1.5 times width of an eye; 2) in profile, frontal ridge concave before eyes; 3) in profile, upper margin of pronotum protruded before shoulders and straight backward; 4) humeral angles wide rounded; 5) hind wing only reaching the middle of hind femur; 6) width of midfemur 3 times the width of elytra. Length of body: ♂8~8.2 mm; length of pronotum: ♂8~8.1 mm; length of hind femur: ♂7~7.3 mm. Holotype ♂, Yunnan: Jingdong, 1700 m, 100°9′E, 24°8′N, 18-Ⅺ-2001, collected by Tong Zhengqiang; paratype 1♂, as holotype. 3. Bolivaritettix pianmaensis, sp. nov. (Figs. 5~7) This new species is allied to Bolivaritettix chongqingensis Zheng et Shi and Bolivaritettix tridentata Zheng et Ou. It differs from both in: 1) width of vertex 1.6 times the width of an eye; 2) lower margin of midfemur straight; 3) length of subgenital plate of female nearly equal to its width, hind margin with three teeth, of which the midtooth longer than lateral teeth. Longth of body: ♀11.7~12 mm; length of pronotum: ♀10~10.2 mm; length of hind femur: ♀7.8~8 mm. Holotype ♀, Yunnan: Lushui, 1900 m, 98°5′E, 26°N, 04-Ⅳ-2002, collected by Ou Xiaohong; paratype 1♀, as holotype. 4. Bolivaritettix wuliangshanensis, sp. nov. (Figs. 8~10) This new species is allied to Bolivaritettix tridentata Zheng et Ou, but differs in: 1) width of vertex 1.3 times the width of an eye; 2) width of midfemur narrower than the width of elytra; 3) lower margin of midfemur straight; 4) length of subgenital plate of female larger than its width, in the middle of hind margin with a triangular projectinig. Length of body: ♂10 mm, ♀11.5 mm; length of pronotum: ♂10 mm, ♀12 mm; length of hind femur: ♂5.5 mm, ♀7 mm. Holotype ♀, Yunnan: Jingdong, 1900~2200 m, 100°9′E, 24°8′N, 29-Ⅴ-2001, collected by Song Jinxin; paratype ♂, Yunnan: Jingdong, 1900-2000 m, 11-Ⅺ-2001, collected by Ou Xiaohong.