关键词: 双翅目, 蝇科, 阳蝇属, 新种

Abstract: This paper described that two new species of the genus Helina Robineau-Desvoidy,1830 from mountainous area of western Sichuan during 1979-2002.All type specimens are deposited in the institute of plant physiology and Ecology,Shanghai Institute for Biological Sciences,Chinese Academy of Sciences,Shanghai,China.1Helina callia sp.nov.(Fig.1) ♂:Body length 7.0 mm;bodies and legs black.This new species is similar to Helina deleta(Stein,1914),but the latter without P seta on fore tibia;surstyli as in long as cercus and long form in lateral view;cercus thin and sharp-like in lateral view.♀:Unknown.Holotype ♂,Mt.Erlang(Forest Farm,2 684 m,29°53′N,102°10′E),Sichuan Prov.,24 May 1984,Coll.Feng Yan.2Helina dicrocercacma,sp.nov.(Fig.2) ♂:Body length 6.0 mm;bodies black,femora and tibiae yellow.This new species is similar to Helina longiquadrata Xue et Wang,1986,but in the latter,the 3rd and 4th tergites with spots;epistoma not protruding;eyes bare;male cercus without a outer projection on apical margin in posterior view.♀:Unknown.Holotype ♂,Hanyuan(Mt.Jiaoding,3 550 m;29°23′N,102°51′E),Sichuan Prov.,23 Jun.1987,Coll,Feng Yan.