中国裸齿角石蛾属三新种(毛翅目,齿角石蛾科)  

DESCRIPTIONS OF THREE NEW SPECIES OF PSILOTRETA(TRICHOPTERA,ODONTOCERIDAE) FROM CHINA

作　　者：袁红银[1] 杨莲芳[1] 孙长海[1] 

机构地区：[1]南京农业大学昆虫学系,南京210095

出　　处：《动物分类学报》2008年第2期380-384,共5页Acta Zootaxonomica Sinica

基　　金：美国自然科学基金资助项目(DEB0316504).

摘　　要：描述了裸齿角石蛾属3新种,即脊状裸齿角石蛾Psilotreta vertebrata sp.nov.(广东)、方背裸齿角石蛾Psilotreta cuboides sp.nov.(云南)和凹入裸齿角石蛾Psilotreta excavata sp.nov.(江西)。模式标本保存于南京农业大学昆虫标本馆。Three new species of the genus Psilotreta, are described and illustrated, i. e. P. vertebrata sp. nov. （from Guangdong）, P. cuboides sp. nov. （ from Yunnan） and P. excavata sp. nov. （ from Jiangxi）. The authors examined specimens deposited in Nanjing Agricultral University, and 25 species of the genus Psilotreta were identified. Based on the examination of Chinese materials, we found that the length proportion of each segment of maxillary palpus, and venation can help to classify species groups. Three venation types of Chinese Psilotreta were recognized： 1 ） forewing with discoidal cell （ DC ） （ in most species ） ; 2 ） forewing without DC, because of the base of R4 ＋ 5 absent （ in 3 species） ; 3） forewing without DC, because of R3 ＋ 4 ＋ 5 with the same petiole （in 1 species）. Venation of the Nearctic Region species all fall on the type Ⅰ, except forewing of Chinese species without Gu2 （Fig. 1 ） or with only the vesugial trace at its base or end （Fig. 3 ）, forewing of North America species with Cu2 present （Schrnid, 1998）. The type specimens of the new species are deposited in the Insect Collection of Nanjing Agricultural University. 1 Psilotreta vertebrata sp. nov. （Figs.2-8） This species is similar to Psilotreta daidalos Malicky, 2000, from Henan, China, but differs from it by characters of male genitalia in： 1 ） tergum X with a longitudinal mesal ridge and with its apex abrupdy narrowed in a spine form in dorsal view （tergum X without such a ridge, and with its apex rounded in P. daidalos）; 2） lateral process extended forward in lateral view （ pointed backward in P. daidalos ） ; 3 ） distal segment of inferior appendage triangular in ventral view （cylinder in P. daidalos）. Holotype 2, Guangdong Province, Ruyuan County （24.9°N, 113.06°E）, Nanling Nature Preserve,tributary of Yangxi River, Baima Hole, Xisan Power Plant, 300 m upstream of bridge, alt. 410 m, 17 May 2004, coll. Morse, SUN Chang-Hai. Paratypes： 2♀♀, 1♂, sa

关 键 词：齿角石蛾科 裸齿角石蛾属 新种 中国 

分 类 号：Q969[生物学—昆虫学]