上海食蚜蝇的研究(双翅目:食蚜蝇科)

STUDIES ON SYRPHIDS FROM SHANGHAI,CHINA(Diptera:Syrphidae)

本文整理出上海地区食蚜蝇科昆虫名录33种.记述了新种1个,即大角宽跗食蚜蝇 Platycheirus macroantennae He,新种,中国新记录种2个,即弯斑鼓额食蚜蝇 Scaeva komabensis(Matsumura)和羽宽跗食蚜蝇Platycheirus pennipes ()hara。文末并就上海地区食蚜蝇科的区系组成进行了讨论.

A list is given for 33 species of Syrphidae found in Shanghai,China.Among these,1 is described as new to science,2 are recorded from China for the first time,i.e.Platycheirus pennipes (?)hara and Scaeva komabensis(Matsumura).The faunistic components of Syrphidae in Shanghai are discussed.The new species is described as follows: Platycheirus macroantennae He,sp.nov. ♀:Face deeply hollowed beneath the antennae.Each tergite of abdomen from 2nd to 5th with a pair of lateral brownish yellow spots(Fig.6).Apical portion of tibia and basal 2 tarsomeres of frontal leg slightly dilated(Fig.5). This species is very similar to the Japanese species P.pennipes (?)hara,but may be distin- guished from it by the following characters:third antennal segment large,rather rounded, slightly wider than long(Fig.3);wing not darkened,at middle;facial tubercle and lower facial margin much produced,lunula slightly produced(Fig.2). Length:Body 9.5 mm;wing 7.5mm. Female:unknown. Holotype♀,Shanghai:Qibao,Ⅳ-26-1987,collected by Cai Yun.The type specimen is deposited in the Insect Collection of Shanghai Agricultural College.