The Book of the Fly / A nature study of the house-fly and its kin, the fly plague and a cure

by George Hurlstone Hardy

109 (110). Legs long and thin; abdomen very long.

Part of Micropezidæ, XL (genus Micropeza)

110 (109). Legs short and strong; D oval or elliptical.

111 (112). A, III (6) absent; A, IV (5) round, or, if lengthened, then A in profile is triangular.

Chloropidæ, LI

112 (111). A, III (6) present; A, IV (5) generally long or oval; A in profile never triangular.

113 (114). Head square; face strongly convex (plate VII, 21); O, 6¹ absent. Not orange coloured species.

Ephydridæ, XLIX

114 (113). Head round or semi-circular; face not arched (plate VII, 19); O, 6¹ present, or, if absent, then the species orange coloured.

Part of Drosophilidæ, L.