双突拱背果蝇Drosophila (Lordiphosa) biconvexa Zhang et Liang, 1992 

　　鉴别特征：本种属nigricolor种组，似台湾省产的Drosophila (Lordiphosa) chaolipinga Okada 但生殖弓下缘为2突，前阳基侧突后侧叶无中央叉突。 

　　分布区域：云南。 

　　文献：张文霞，梁醒财，1992，果蝇属拱背果蝇亚属七新种，动物分类学报，17（4）：473-482 

　　Remark: This species belongs to nigricolor species-group, allied to Drosophila (Lordiphosa) chaolipinga Okada, but differs from it in having two processes of epandrium ventrally, anterior paramere without median branch. 

　　Distribution: Yunnan. 

        Reference: Wenxia Zhang, Xingcai Liang 1992, Seven new species of the subgenus Lordiphosa of Drosophila, Acta Zootaxonomica Sinica, 17 (4): 473–482.