中国瘤蚱属的研究(直翅目:蚱科,刺翼蚱亚科)

ON THE GENUS THORADONTA HANCOCK FROM CHINA (ORTHOP-TERA: TETRIGIDAE, SCELIMENINAE)

瘤蚱属(Thoradonta Hancock,1908)为刺翼蚱亚科(Scelimeninae)中一个小属,已知7种,主要分布于印度、印度尼西亚、新加坡、马来西亚、斯里兰卡、越南、菲律宾和中国等地区。在我国,以往曾记载过2种,近年来在整理中山大学和陕西师范大学的蚱科标本时,发现有2新种及2种国内新纪录。为了便于比较和鉴定,现将已知的种类包括在检索表内。新种的模式标本保存于中山大学昆虫研究所。

This paper deals with seven species of the genus Thoradonta Hancock collected from China.Among them two species are described as new to science and two species are recorded for the first time from China.All the type specimens of the new species are deposited in the Research Institute of Entomology,Zhongshan University.Thoradonta longipenna sp.nov.(figs.1-3)The new species is allied to Thoradonta pruthii Gunther,but differs in the size smaller;posterior angles of the lateral lobes of proaotum transversely acute,spinate long and produced;wings longer,extended beyond the apex of pronotal process.Length of body:7,7.5mm;length of pronotum;8.5,9.5mm;length of wing:7,9 mm;length of hind femur:4.5,5mm.Holotype cf,Guangdong:Fengkai July 5.1987.Sheng Li;allotype,Guangdong:Feng-.kai,July,1,1987.Zhou Shan-Yi.Thoradonta nigridorsalis sp.nov.(figs.4-6)This new species is allied to Thoradonta lativertex Gunther,but differs in wings extended beyond the apex of pronotal process;pregenicular tooth of hind femur blunt;disc of pronotum black.Female unknown.Length of body 6 mm;length of pronotum 8 mm;length of wing 6.5 mm;length of hind femur cf 4 mm.Holotype,Hainan:Ledong,June 29,1981.Liang Zong-Zhi.