Figure 2.

Wing morphology and pigmentation patterns of drosophilids. (a) A wing of Drosophila melanogaster (melanogaster group, subgenus Sophophora). (b) General morphology of a wing in drosophilids. L1: First longitudinal vein, L2: Second longitudinal vein, L3: Third longitudinal vein, L4: Fourth longitudinal vein, L5: Fifth longitudinal vein, ACV: Anterior crossvein, PCV: Posterior crossvein, CS: Campaniform sensilla. (c) A wing of Idiomyia heteroneura (picture wing group), which has pigmentations at the wing base, crossveins, and longitudinal vein tips, and some other locations. The crossvein connecting the middle of L3 and L4 is unique to some species of Idiomyia. This photo is courtesy of Cédric Finet. (d) A wing of Samoaia leonensis, which has a mottled pigmentation pattern. (e) A wing of Drosophila biarmipes (melanogaster group, subgenus Sophophora), which has an antero‐distal pigmentation spot. (f) A wing of Drosophila guttifera (quinaria group, subgenus Drosophila), which has pigmentations around crossveins, longitudinal vein tips, and campaniform sensilla