Cordyluridæ, XXXIV

83 (82). Fronto-orbital bristles absent; body always shining black.

Part of Sepsidæ, XLVI

84 (77). Vibrissæ absent; mouth with short hairs or bare (plate VII, 1, 3, 4); or, if the hairs are strong, all of same length and strength.

85 (88). A, IV very long and horizontal; A, IV (4) as long or longer than A, IV (5) of which the upper edge is concave (plates III, 54; VII, 1).

86 (87). Profile not triangular; face perpendicular or slightly retreating.

Part of Sciomyzidæ, XXXVIII

87 (86). Profile triangular; A, V retreating (plate VII, 1) almost horizontally.

Part of Ortalidæ, XLI

88 (85). Antennæ not long, or, if long, drooping; A, IV (4) shorter than A, IV (5) of which the upper edge is straight or convex.