Pipunculidæ, XXVII
59 (58). Vena spuria present (plate V, 19-21); O, 42. closed; A, II moderate.
Syrphidæ, XXVIII
60 (57). Proboscis projecting far in front, very thin and long, often double-kneed (plate VI, 27); no vena spuria (plate V, 21-1/2).
Part of Conopidæ, XXIX
61 (56). O, 61 short, not nearly reaching margin, or absent (plate V, 12, 22-39) abdomen often with strong bristles.
62 (63). Proboscis and palpi atrophied.
Œstridæ, XXX
63 (62). A, VIII, 3 and 4 distinctly present.
64 (67). X, 51 absent, X 52 present, i.e., only one X-vein on V, 5 and that beyond X, 4.