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机构地区:[1]陕西师范大学动物研究所,陕西西安710062 [2]西南林业大学云南省森林灾害预警与控制重点实验室,云南昆明650224
出 处:《Entomotaxonomia》2012年第2期153-161,共9页昆虫分类学报(英文)
摘 要:Two new species in the genus Teredorus Hancock from Ytmnan Province are described: T. brachinotoides sp. nov. and T. choui sp. nov.. T. brachinotoides sp. nov. is allied to T. brachinota Zheng & Xu, 2010, but differs in: 1) length of body 2.42-2.7 times its width; 2) frontal ridge concave before lateral ocelli in profile; 3) total length of pronotum about 9.35 times length of the part of hind process surpassing hind femur; 4) inner side of hind femur yellowish brown, basal part black; 5) lower inside of hind femur yellowish brown, with two black spots, lower outside black; 6) sternum of abdomen yellowish brown. T. choui sp. nov. is allied to T. albimarginus Zheng & Zhou,1996, but differs in: 1) length of hind process surpasses apex of hind femur 3.50-4.00 mm (♂) or 2.80-3.00 mm (♀); 2) length of tegmina 2.5 times its width; 3) width of mid femur equal to tegmina; 4) midkeel of pronotum chequered with black and white; 5) profile of pronotum with same colour as its back; 6) lower side of hind femur grey brown; 7) inner side of hind femur black. A key to known species of the genus Teredorus Hancock is given. The type specimens are deposited in the Institute of Zoology, Shaanxi Normal University.记述采自云南省高黎贡山地区尖顶蚱属 Teredorus Hancock 2 新种,即拟短背尖顶蚱 T. brachinotoides, sp. nov. 及周氏尖顶蚱 T. choui sp. nov.。拟短背尖顶蚱近似于短背尖顶蚱,主要区别为:1)体长为体宽的 2.42-2.70 倍;2)侧面观颜面隆起在侧单眼前略凹陷;3)前胸背板总长超过后足股节顶端部分长的9.35倍;4)后足股节内侧黄褐色,基部黑色;5)后足股节下侧内面黄褐色,具2黑斑,外面黑色;6)腹部腹板黄褐色。周氏尖顶蚱近似于白边尖顶蚱,主要区别为:1)前胸背板后突超过后足股节顶端部分长3.50-4.00 mm(♂)或 2.80-3.00 mm(♀);2)前翅长为宽的2.50倍;3)中足股节宽与前翅等宽;4)前胸背板中隆线黑白相间;5)前胸背板侧面色与背板同色;6)后足股节下侧非黑色;7)后足股节内侧黑色。文中附有尖顶蚱属已知种检索表。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。
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