Report upon Aculeate Hynienoiitcra. 219 



branches ; head and thorax in ^ more decidedly brassy, tlie 

 face bekjw the antennaj clothed with a whitish pubescence, the 

 antennas longer, the scape and pedicel fcneoiis-black, the scape 

 as long as joints 4-5 united, the flagellum brown-black, paler 

 beneath, the second joint as long as the pedicel and first joint 

 united, neither of which are longer than wide. 



H. s((ncti-viucenti, n. sp. 



Head and thorax bright gold-green, and uniformly shagreened, tlie 

 mesonotum at base bluish or purplish and irregularly wrinkled ; 

 abdomen black, with a dark-brownish tinge in certain lights ; 

 beneath brownish, above microscopically .shagreened ; mandibles 

 toward tips, teguhc and legs testaceous, the femora and tibiae 

 obfuscated at the middle, the anterior and hind coxte sometimes 

 with a metallic tinge H. aurahis, n. sp. 



29. Halidus gemmatus, Smith. 



1853. Halietns gomnatns, Smith, Cat. Hym. B. M., i, 



p. 65. ?. 

 1886. Dalla Torre, Cat. Hym., x, 



p. 63. 



St. Vincent — Leeward and Windward sides. Three $ 

 specimens. 



80. Halidus cyaneus, n. sp. 



$ . Length 5mm. Blue, the clypeus with a transverse brassy band 

 before apex. Antennro black, joints 1-4 of flagellum wider than long. 

 Mandibles at ajjex rufo-i)iceoirs. Palpi dark rufous, the tips of the 

 joints pale. Legs dark rufo-piceous, sometimes almost black, with a 

 pale pubescence, the tarsi, or at least joints 2-5, testaceous. Ventral 

 segments of abdomen piceous or testaceous at margins. Head closely 

 punctate, the clypeus on apical half, except a few scattered punctures, 

 impunctate, the anterior margin with a fringe of white hairs. 

 Thorax microscopically shagreened and punctate, but not closely, 

 except on the anterior lateral angles. Metathorax squarely trunaite 

 posteriorly, the metanotum with elevated radiating lines at base. 

 Wings fuscous, the teguhe rufo-piceous, polished impunctate, the 

 stigma and veins brown-black. Inner spur of hind tibias with three 

 long branches. 



^. Length 4nmi. Agrees well with the $ but narrower, the 

 antennre longer, the joints of the flagellum subequal, except the first, 

 which is only one-half the length of the second, and quadrate in 

 outline. Abdomen elongate, subcylindrical, testaceous beneath, the 



