Report upon Aculeate Hymenoptcra. 289 



segment smooth, shorter than the tliird. The extreme tips of hind 

 tibia3 and their tarsi more or less ,sv;ljfascous. 



St. Vincent. Described from one % specimen. 

 This species bears a superficial resemblance to U. nigri- 

 ceps. 



218. Urogaster Icucostigmus, n. sp. 



9 ^. Length 2-2"25 mm.; ovipositor a little longer than half 

 the length of the abdomen. Black, closely, finely punctate, seri- 

 ceous. Antennae black or brown-black, a little longer than the 

 body. Palpi white. Scutellum polished, impunctate. Mesopleura, 

 except the depression posteriorly, and the sternum punctate. Meta- 

 thorax finely rugulose, areolated, the central area much longer than 

 wide. Wings salty-white, the teguh« and costa yellowish-white, 

 stigma white, its margins and the radius tinged with yellowish, 

 the rest of the nervures hyaline ; the sub median cell is only about 

 half the length of the second discoidal cell, longer than the median. 

 Legs brownish or dark honey-yellow ; all coxaj black, the tro- 

 chanters, or at least the first joint of the trochanters, and base of 

 femora black, middle and posterior femora, except the extreme tips, 

 black or dark brown, the apical half or more of the posterior tibiae 

 and their tarsi more or less fuscous. Abdomen black, shining, the 

 valvula ventralis piceous, in the ^ with a small white spot at sides 

 near base ; the plate of first segment smooth, or at most feebly 

 alutaceous, slightly narrowed, at apex ; the second segment is very 

 short, about one-third the length of the third, with oblique, grooved 

 lines at the sides. 



St. Vincent and Grenada. Described from several 

 specimens. 



219. Urogaster aeiciclafus, n. sp. 



(^ . Length 3 mm. ; black, head subrostrate, on vertex and temples 

 polished, impunctate, on face closely, microscopically punctate, 

 the labrum large, prominent. Palpi pale yellowish. Thorax closely 

 punctate, the parapsidal furrows represented by two depressions 

 posteriorly. Femoral furrows on the mesopleura distinct, crenulate. 

 Metathorax rugulose, the areola rather large, rounded. Wings 

 hyaline, the costa towards apex, the stigma, poststigmal vein and 

 the abscissa of the radius, which is much shorter than the inner 

 side of the areolet, brown, the internal veins paler. Legs, except 

 coxa3, ferruginous, the hind knees, tips of hind tibise and their 

 tarsi fuscous. Abdomen black, the lateral membranous margins of 

 dorsal segments 1 and 2 and ventral segments 1—3 pale brownish 

 or yellowish ; plate of first segment finely sculptured, about 



