16A. Wing of the house fly, Musca domestica, showing the fourth longitudinal vein (M1+2) curving forward to nearly meet the vein R4+5 at the wing margin.
16B. Wing of the little house fly, Fannia canicularis, showing the vein M1+2 not curved to meet vein R4+5 and the second anal vein curving forward towards the
first anal vein.
16C. Wing of the stable fly, Stomoxys calcitrans, showing the vein M1+2 only slightly curved
forward towards vein R4+5.
16D. Wing of the false stable fly, Muscina stabulans.
16E. Wing of black garbage flies, Ophyra spp.
16F. Wing of a blow fly, Phaenicia spp. (Family Calliphoridae).
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