Cresson.] 368 [March 24, 



granulated, apex densely silvery, witli a golden hue in certain lights ; 

 wings yellowish-hyaline, with a small fuscous cloud beneath stigma ; 

 marginal cell long, lanceolate; second submarginal pointed towards 

 base of wing; third submarginal longer than the second, narrowed 

 towards marginal, and receiving the second recurrent nervure one 

 third from base; legs long, slender; coxae, trochanters, anterior 

 femora and base of middle femora, black ; anterior tibise, tips of two 

 posterior pair, and all the tarsi, brown; base of anterior tibi?e, apical 

 half of middle femora, their tibiae, and the posterior femora and 

 tibite, fulvous; four posterior tibiae and tarsi with numerous short 

 spines; abdomen petiolate, ovate, convex, shining. Length three and 

 one half lines. 



Hah. — Orizaba. (Prof. F. Sumichrast. CoU. Am. Ent. Sec.) 

 One ? specimen. » 



7. Pompilus gloriosus, n. sp. 



?. Black; head, except occiput, covered with a very brilliant 

 silvery pile; clypeus truncate in front; antennte black, scape more or 

 less silvery; middle of prothorax, anterior half of mesothorax, scutel- 

 lum, broad band across middle of metathorax, tegulae, and anterior 

 half of pleura, velvety black ; remainder of thorax covered with a 

 brilliant changeable silvery pile; prothorax prominent laterally, its 

 posterior margin arcuate; metathorax rounded, with a finely im- 

 pressed, central, longitudinal line, deep at base; disk finely, trans- 

 versely striated; wings hyaline, with a beautiful opaline iridescence; 

 across the middle of anterior pair a rather broad, even, entire, 

 blackish band, and between it and the apex a large rounded blackish 

 spot covering the base of marginal and whole of second and third 

 submarginals, but not reaching the posterior margin of the Aving; the 

 posterior pair are dusky at aj^ex, and a zigzag dusky line crosses the 

 middle; marginal cell long, narrow, sublanceolate, second submarginal 

 quadrate, the third larger, and narrowed nearly one half towards the 

 marginal, receiving the second recurrent nervure one third from the 

 base; legs long, slender, black, in certain lights conspicuously silvery 

 cinereous; coxEe bright silvery; middle and hind tibiiE with a few 

 short, scattered spines; claws deej^ly cleft, the teeth equal in length; 

 abdomen subpetiolate, oblong ovate, convex, smooth and shining, 

 black; posterior margin of three basal segments broadly black, re- 

 mainder covered with a brilliant, changeable, silvery pile; apex silvery 

 cinereous, pilose, terminal segment densely pitted on the dorsal 

 middle, and with short stiif haii's. Length eight lines. 



