云南竹生的局限蚊属一新种：双翅目：蚊科

A NEW SPECIES OF TOPOMYIA FROM THE BAMBOO STUMPS IN YUNNAN,CHINA (DIPTERA:CULICIDAE)

Topomyia (Suaymyia)nemorosa sp. nov.(Figs. 1-7)The new species is distinguished from the other members of the subgenus,with the exception of To. yanbarensis,To. (Sua.)dulongensis Gong et Lu, 1995 and To. (Sua.) bannaensis Gong et Lu, 1995, by the presence of a row of large broad pale scales on lateral margin from scuteal angle to wing root or supraalars on mesonotum. To. yanbarensis differs from the former in the color of flat broad scales of middorsal line on mesomotum which are translucent,and the strongly bifurcate; distitnere; the broad scales of lateral margin of mesonotum of To. dulongensis are silvery and with strongly dorsocentrals; To. bannaensis differs from the new species in the absence of ventral yellow lines on tibiae and tarsi, a light patche on the ventral of base of costa.The larva of the new species differs from To. yanbarensis and To. dulongensis by thepresence of a digit process of the well developed maxilla. It also differs from To. hoztghtoniand other members of the subgenus in the absence of pecten,but with minute spicules frombase to apex of siphon.Holotype /, paratypes 10 / /, 25 1 l; 33 larvae or larval skins,collected from bam-boo stumps in Ruth City (24. 34"N, 98"E, fat. 1400m) (Gong, 1992),Yunnan Province. Alltypes are depisted in the institute of Epidemiology of Yunnan Province.