328 ENTOMOLOGICAL NEWS. [December, 



DESCRIPTIONS OF NEW HYMENOPTERA. 



By T. D. A. COCKERELL, Agr. Exp. Sta., Las Cruces, N. M. 



Perdita luteola sp. nov. $. About 5 mm. long; entirely canary-yellow, 

 except the greenish eyes, the black ocelli, a small black spot adjacent to 

 the upper anterior margin of each eye, and the more or less blackish hind 

 tarsi. Head seen from the front transversely broadly oval; tongue about 

 as long as thorax; occiput with sparse, pale hairs. Mesothorax anteriorly 

 with a distinct central groove; parapsidal grooves very short. Abdomen 

 shiny, the terminal third with sparse, pale hairs; legs similarly hirsute. 

 Wings hyaline, stigma and nervures very yellowish: marginal cell about 

 as long as stigma, abruptly truncate: first submarginal very large, quad- 

 rate, twice as long as broad; second submarginal triangular, its outer 

 nervure concave, the others straight. 



Hab. In the grounds of the Agricultural College, Las Cruces, 

 N. Mex., September, 1894, numerous on yellow flowers of Com- 

 posite, the color of which they exactly match. 



The beautiful uniform yellow color at once separates this from 

 any species of which I have seen a description. 



Parnopes festivus sp. nov. . Length about 9 mm.; of anterior wings, 

 5.5 mm. Allied to P. chrysoprasinus Smith; postscutellum deeply notched; 

 colors green, pinkish coppery and purple. Head, thorax and abdomen 

 strongly and closely punctured, on disc of thorax almost reticulate. Teg- 

 ulas likewise punctured. Head green, crown shining rosy, occiput pur- 

 plish. Face excavated; mandibles testaceous, their ends black. Antennae 

 yellowish brown, with sericeous pile, first two joints of flagellum some- 

 what darker, scape greenish, shining, basal joint dark brown. Tongue 

 about as long as thorax. Prothorax pinkish coppery, punctures more or 

 less green, anterior portion adjacent to head purplish. Mesothorax dor- 

 sally purplish green; subdorsally pinkish coppery with green punctures, 

 laterally similar. Tegulae pale reddish brown, lighter towards edges, not 

 at all green; scutellum dull green, this and the postscutellum with some 

 appressed, pale yellowish hairs towards the sides. Postscutellum with 

 the central projecting portion broadly truncate, widely notched in the 

 middle, and presenting a small notch on each side; metathorax purple, 

 with green reflections. Abdomen with bases of segments purple, central 

 portion pinkish coppery, remainder green, except the margin of terminal 

 segment, which is broadly purplish brown. Terminal segment with two 

 deep excavations, each with appressed yellowish white silky hairs; lateral 

 distal margins of two previous segments clothed with similar hairs; mar- 

 gin of last segment with about twelve small teeth. Coxa;, trochanters 

 and femora dark purplish, except their fulvous distal extremities; tibiae 

 and tarsi reddish brown, with short pubescence. Wings smoky, veins 

 dark brown. 



