苔蛾亚科一新属五新种(鳞翅目:灯蛾科)

ON A NEW GENUS AND FIVE NEW SPECIES OF LITHOSIINAE (LEPIDOPTERA: ARCTIIDAE)

本文记述灯蛾科苔蛾亚科的一新属,共包括五个新种。模式标本保存于中国科学院动物研究所。 角苔蛾属 Disasuridia 新属 喙小;下唇须平伸,不超过额;雄蛾触角丝状具纤毛;后足胫节缺中距。前翅2脉从中室中部伸出,3从近中室下角伸出,4、5从下角伸出,6从中室上角下方伸出,7、8、9共柄,7从9的前方伸出,10与11共柄,11与12部分并接。后翅2从中室中部以外伸出,

In this paper a new genus and five new species of Arctiidae,Lithosiinae are described.Type specimens are kept in the Institute of Zoology,Academia Sinica.Disasuridia gen.nov.Proboscis small;palpi porrect,not reaching beyond the frons;antennae of male ciliated;hind tibiae with the medial spurs absent.Fore wing vein 2 from middle of cell,3 from near angle,4,5 from angle,6 from below upper angle,7,8,9 stalked,7 from 8 before 9,10,11 stalked,11 anastomosing with 12.Hind wing with vein 2 from beyond middle of cell,3,4 from angle,5 from above angle,6,7 stalked,8 from to wards angle of cell,Male genitalia: uncus broad and concave terminally,with a costatus on dosal potion,transtilla tringle shaped,valva broad and long with a membranous oblong lamella on the apical area,vinculum sometimes slightly prominent towards base,aedeagus short and stout with two chirinzed,strong and big horn-shaped cornuti,one on the upper median part;another on the dorsal margin,with numerous spins on middle portion.The new genus is closely allied to genus Asuridia Hampson 1900,but it is readily distinguished from the latter by the following fiatures: 1.hind tibiae with the medial spurs absent;2.male genitalia is distinguishable,especially aedeagus with two horn-shaped cornuti.Type species: Disasuridia rubida sp.nov.1. Disasuridia rubida sp.nov.Wing expanse 18-20 mm.It resembles Asuridia brevistriata but differs from the latter in the structures: hind wing colour black;male genitalia is different.Holotype Jingdong,Yunnan,1170 m.,3.Ⅵ.1956,collected by para-types 1,ditto,6.V.1956;1,Jingdong,Yunnan,1200 m.,25,Ⅵ.1980.2. Disasuridia virgula sp.nov.Wing expanse 18mm.This species can be distinguished from Asuridia obscura by the fore wing with four subbasal black streaks and male genitalia is specific.Holotype Pingxiang,Guangxi,12.Ⅵ.1976,collected by the author.3. Disasuridia conferta sp.nov.Wing expanse 16mm.It is closely allied to D.virgula,but hind wing without black colour,distal portion of tegumen arc-shaped.Holotype PiDihushanng,Guangdong,12,Ⅵ.1973,collected by the author.4 Disasuridia confusa sp.nov.Wing expanse 16 mm.This species is very similar to D.virgula but differs from the latter by the fore wing antemedial line is conjoined to the medial line in the cell,vinculum of male genitalia slightly project.Holotype,Pingxiang,Guangxi,17,Ⅵ.1976,collected by the author.5.Disasuridia flava sp.nov.Wing expanse 20mm.Similar to D.rubida but may be separated from it by the body and fore wing colour orange-yellow.Holotype,Medog,Xizang,850m.,1,Ⅵ.1983,collected by Han Yinheng.