Diptera of St. Vincent (West Indies). 427 



twice the length of the penultimate section; anterior cross-vein 

 situated a little before the termination of the first vein ; basal 

 cells small, but complete. Face narrow, feebly carinate on the 

 upper part, broader in the female than in the male, with a row of 

 rather long bristles on each side extending nearly to the antennae, 

 but without true vibrissse. The face is plane, not projecting in 

 profile ; in the middle, not reaching much more than three-fourths 

 the distance from the root of the antennae to the lower border of 

 the eyes ; epistoma not at all projecting ; clypeus projecting lappet- 

 like ; cheeks linear, with bristles along the oral margin. Eyes 

 forming nearly the entire head in profile, with a distinct excision 

 on the occipital border near the middle. Occiput concave. 

 Antennae short, third joint rounded, arista bare. Proboscis slender, 

 when folded enclosed within the oral cavity, the labella slender and 

 turned backward. Legs moderately slender, with bristles on the 

 under side of the femora, but no preapical bristles and no spurs, 

 save on the middle tibiae. Mesonotum with bristles on the sides 

 and before the scutellum, the latter oval, with four bristles. 

 Abdomen ovate, composed of five segments ; ovipositor of female 

 telescopic, cylindrical, when extended about as long as the fifth 

 segment ; male genitalia not exserted. Eyes bare. First posterior 

 cell nearly closed. 



1 . OpMhalmomyia lacteipennis. (PI. XIV., figs. 154, wing; 

 154a, b, head or ct.) 



Lohioptera lacteipennis, Loew, Centur., vi., 97. — Cuba. 



(^ , 5 . Deep shining metallic black ; the front and face more 

 opaque; legs brownish-black. Abdomen opaque, somewhat bronze- 

 black, the margins and the fifth segment shining metallic ; palpi 

 reddish ; wings whitish. Length 2-3 mm. 



Numerous specimens. 



Cekatomyza. 



Schiner, Wien. Ent. Monatschr., vi., 1862; Odontocera, 

 Macquart, Hist. Nat. Dipt., ii., 1835 (preoc). 



1. Ceratomyza dorsalis. (PL XIV., figs. 155, wing; 



155a, head.) 



? Odontocera dorsalib', Loew, Centur., iii, 98. — District 

 Columbia. 



(^ , $ . Front opaque dusky-yellow, with a rounded black spot 

 about the ocelli. Face and cheeks yellow. First two joints and 

 the under basal portion of the third joint of the antennae yellow 



