Drosophila (Drosophila) aplophallata Zhang et Toda, 1995

Diagnosis: Dorsal process of aedeagus vestigial, triangular in lateral view. Hypandrial process small, somewhat triangular.

Remark: This species certainly belongs to the D. immigrans species-subgroup, because of the male fore tarsus is ornamented with long, recurved setae, the aedeagus is dorsosubmedially provided with characteristic process and the hypandrium with 1 pair of distinct processes on inner margins, although the last two characters are vestigial.

Distribution: Philippines (Luzon).

Reference: Wenxia Zhang, Masanori J. Toda, Hide-aki Watabe 1995, Fourteen new species of the Drosophila (Drosophila) immigrans species-group (Diptera) from the Oriental region, Japanese Journal of Entomology, 63 (1): 25–51.