150 [January 



fulvous. Wings hyaline, very faintly tinged with fuscous, slightly iri- 

 descent ; nervures blackish. Legs black, thinly clothed with a pale 

 glittering pubescence ; the anterior femora at tips beneath and their 

 tibia? exteriorly, more'or less yellowish-white; tibiae tinged with pice- 

 ous, spurs yellowish ; tarsi ferruginous at tips. Abdomen black, finely 

 and closely punctured, the four basal segments with a narrow, trans- 

 verse, yellowish-white line on each side of the apical third, rather 

 broadly margined behind with silvery-white pubescence, more conspicu- 

 ous when viewed in certain lights ; the two apical segments rufo-ful- 

 vous, the terminal one carinated on each side, the earina converging 

 towards the apex. Length 2} — 2f lines ; expanse of wings 4 — 4f lines. 



Male. — Resembles the female, but is smaller, the anterior tibiae and 

 tarsi are mostly yellowish or testaceous, and their femora more broadly 

 yellow at tip, the four posterior tibia? have a yellow line behind, and 

 their femora at tip beneath are more or less yellow; the base of the 

 fifth abdominal segment is more or less black, and the two apical ones 

 entirely rufo-fulvous, the extreme tip is slightly emarginate. Length 

 If — 2 j lines; expanse of wings 3 — ol lines. 



Collection. — Ent. Soc. Philad Two 9 , four % specimens. 



Genus CRABRO. Fabr. 

 \. Abdomen petiolated. 

 Crabro auriceps, n. sp. 



Black; face and cheeks golden; mandibles, scape of antennre. collar, tuber- 

 cles and a transverse band behind them, scutellums. most of legs, and three 

 bands on abdomen, the two last interrupted on the disk, yellow ; abdomen fer- 

 ruginous at tip and beneath : wings fusco-hyaline, darker at tips. 



Male. — Black ; head very large, subquadrate, broader in front than 

 behind; vertex opacjue ; the face, a transverse line above the mandi- 

 bles, and the cheeks or broad outer orbits, clothed with dense, bright 

 golden pubescence; mandibles, except extreme tips, yellow ; antenna? 

 black, the two basal joints entirely yellowish. Thorax opaque-black ; 

 an uninterrupted line before the mesothorax, the tubercles and a broad 

 transverse band just behind them, basal half of the scutellum, connected 

 with a spot on each side at base, a small spot on each side near the 

 base of the wings, and a transverse narrow line suddenly constricted 

 and pointed at each end, all yellow ; pleura and metathorax with a 

 slight golden pubescence, the latter abrupt behind, entirely black, sub- 

 opaque, and covered with fine irregular striae, the disk with a central, 

 longitudinal impressed line ; tegulae honey-yellow. Wings pale fusco- 

 hyaline, much darker along the costa at tip ; nervures fuscous. Legs 

 yellow ; coxae piceous, posterior pair mostly yellowish ; all the femora 



