Diptera of St. Vincent (West Indies). 351 



PIPUNCULID^. 



PlPUNCULUS. 



Latreille, Hist. Nat. des Crust, et Ins., xiv., 1804. 



1. Pipwiculus aculeatus. (PL XL, figs. 87, wing; 



87a, antenna.) 



Pipunculus aculeatus, Williston, Biol. Cent.- Am er. 

 Dipt., iii., 88. — Mexico. 



Five specimens. Agreeing quite with tlie description. 

 I am not able to compare the type specimen, but I believe 

 the determination is pretty certain. In most of the 

 specimens, the middle of the hind femora is brown. 



2. Pipunculus politusj n. sp. (PI. XI., fig. 88, wing.) 



^ , $ . Small cross-vein situated at or beyond the tip of the 

 first longitudinal vein ; penultimate section of the fourth vein 

 scarcely longer than the antepenultimate section ; abdomen wholly 

 shining. Length 4 mm. 



Face and front black, silvery pubescent. Antennae black, the 

 third joint more or less yellowish at the tip, less produced than in 

 P. aculeatus. Mesonotum shining, scarcely pollinose. Abdomen 

 wholly shining black. Legs black ; the extreme tip of the femora, 

 the base of the tibiae, and the first three or four joints of the tarsi 

 yellow. Femora stout, without distinct spines on the underside. 

 Wings hyaline ; no stigmatic spot ; small cross- vein opposite or a 

 little before the middle of the discal cell ; second longitudinal vein 

 short. 



Five specimens. In one of the specimens the small 

 cross-vein is distinctly before the middle of the discal 

 cell, and opposite the termination of the first vein. 



TACHINID^. 



CiSTOGASTER. 



Latreille, Cuvier's Regne Anim., v., 1829. 



1, Gistogaster insularisj n. sp. 



c^,?. First three segments of the abdomen shining; first 

 posterior cell pctiolate. Length 5-6 mm. 



^. Front at the vertex about as wide as the leogth of the 

 antennae ; bright golden yellow, with an opaque median black 

 stripe. Antennae black, the third joint at the base red, the second 



