Drosophila (Drosophila) nullilineata Zhang et Toda, 1988
Remark: This species certainly belongs to the D. quadrilineata species-subgroup because of having genitalia characteristic to this species-subgroup, but is unique in having mesoscutum without longitudinal stripes.
Distribution: Yunnan.
Reference: Wenxia Zhang, Masanori J. Toda 1988, The Drosophila immigrans Species-group of the Subgenus Drosophila (Diptera: Drosophilidae) in Yunnan, China, Zoological Science, 5: 1095–1103.
