Re/port upon Aculeate Hymenoptera. 227 



Genus Tachytes, Panzer. 



48. Tachytes argcntipcs, Smith. 



1856. Tachytes argentiiKS, Smith, Cat, Hyin. B, ]\I., iv, 



p. 306, $. 

 1897. Dalla Torre, Cat. Hym., viii, 



p. 687. 



Grenada, St. George's — Leeward side ; St. Vincent. 

 Many specimens. 



Family XX. PHILANTHID^. 



Subfamily I. CERCERIK.-E. 



Genus Cerceris, Latreille. 



49. Cerceris nigra, n. sp, 



9. Length 11-12 mm. Entirely black, siibopaque, and rather 

 strongly and closely punctate, with a faint sericeous pubescence, the 

 face clothed with a silvery pubescence. Palpi brown. Mandibles 

 and tegula3 polished black. A line laterally on the petiole and a 

 spot laterally at base of the second abdominal segment white. Wings 

 fuscous, with a darker streak along the costa. Head large, quadrate, 

 with a carina between the antenntc which extends forward on 

 the clypeus and terminates in a tooth anteriorly ; clypeus ante- 

 riorly tridentate. Antenna? subclavate, reaching to teguloe, the 

 pedicel subglobose, one-third the length of the first joint of the 

 flagellum, which is the longest joint ; second joint of the flagellum 

 about two-thirds the length of the first, the following joints slightly 

 and gradually shortening and thickening. Claws ferruginous. Spines 

 on tibiai and tarsi pale. 



St. Vincent — Windward side. Described from two ^ 

 specimens. 



Family XXI. TRYPOXYLlDiE. 



Genus Tripoxylon, Latreille. 



50. Trypoxylon sulimiiressum, Smith. 



1856. TripCKcylon subimpressum, Smith, Cat. Hym. B M., 



iv, 380, $. 

 1897. Dalla Torre, Cat. Hym. B. M., viii, 



p. 708. 



Grenada — Balthazar (Windward side). Tliree $ speci- 

 mens. 



