Bc2)ort iijwii Acnlcate TIym.cnoi)lcra. 221 



lights, microscopically shagreened with fiiiu, delicate transverse lines. 

 Antennae black, the scape long, two-thirds the length of the flagellum, 

 the latter subclavate, with joints 1-3 short, transverse. Mandibles, 

 tegulte and legs, testaceous, the femora and tibial more or less obfus- 

 cated medially, the anterior and posterior co.xaj more or less metallic. 

 Wings hyaline, the stigma and veins dark brown ; first cubital cell a 

 little longer than the second and third united, the first recurrent 

 nervure joining the second near its apex, the second recurrent inter- 

 stitial with the third transverse cubitus or uniting with the cubitus a 

 little in front of it. 



(J. Length 4-4'5 mm. Agrees well with the $, except the pleura 

 and metathorax arc bluish-green, the legs darker, the femora dark, 

 rufo-piceous, the flagellum longer, the first joint about two-thirds the 

 length of the second, 



St. Vincent — Windward side, 1500 feet. Described from 

 seven % and one ^ specimen. 



The species forms quite a distinct group in the genus. 



Subfamily III. HPEECOBINJE. 



Genus Trigona, Latreille. 



34. Sphccodcs nigritiis, n. sp. 



$ . Length 3 mm. Black, shining ; the vertex and thorax above 

 sparsely punctate ; the pleura rugose-punctate ; while the face 

 between the antenna3 and the ocelli is closely punctate. The clypeus 

 is clothed with a dense wliitish pubescence. Mandildes rufous, acute 

 at apex. Antennte black, tlie flagellum beneath brown-black. Tarsi 

 and tegul« rufo-piceous. Metathoracic enclosure with irregular 

 raised lines. Wings hyaline, very faintly tinged with fuscous, the 

 stigma and veins brown-black. Abdomen oblong oval, polished 

 black, with a sparse whitish pubescence. 



St. Vincent. Described from one $ specimen. 



35. Sphecodes soUtarius, n. sp, 



(^ . Length 3'75 mm. Black, shining ; head closely, confluently 

 punctate, the face below the antenna), and along the inner orbits, 

 clothed with a cinereous pubescence. Clypeus anteriorly, the labrum, 

 the mandibles, the palpi, the collar at sides including the tubercles, 

 the mesosternum, the legs, including the coxa), and the base of first 

 segment and beneath reddish-yellow ; the middle and hind tibiic 

 with a dark spot behind. Thorax above polished, sparsely punctate, 



