122 E. T. CRESSON. 



(From the United States.) 

 8?>. Pompilus (Agenia) cupidus. n. sp. 



Fimale. — Diirk blue, sliiuins;; clypeus, mandibles, palpi and anten- 

 n;\3 opaque-black; clypeus finely margined and truncate anteriorly; 

 head and scutellum with a slight greenish tinge ; posterior margin of 

 the prothorax subarcuate; pleura and metathorax opaque-black, the 

 latter slightly silvery sericeous and transversely rugose behind ; ante- 

 rior wings uniformly fuliginous, with a brilliant blue and purple reflec- 

 tion ; wing-cells shaped much as in Fig. 8, a, except that the margi- 

 nal cell is narrower, the second subniarginal receives the first recurrent 

 nervure at about the middle, and the third submarginal is a little more 

 narrowed towards the marginal; posterior wings hyaline, slightly 

 dusky at tips; legs long, black, with a strong blue reflection, tibiae 

 black or brown-black ; abdomen ovate, convex, attached to the abdo- 

 men by a short, stout petiole, dark blue, smooth and polished, apical 

 segment black. Length 6 lines. 



Hah. — West Virginia, (Coll. Am. Ent. Soc.) 



One 9 specimen. This lovely species is easily recognized by the 

 dark blue body, and brilliant purple anterior wings. 



84. Pompilus (Agenia) architectus. 



Pompilus architectus, Say, Bost. Jour. Nat. Hist, i, p. 303. 



Female. — Dark blue, clothed with a short cinereous pubescence, 

 long on the shoulders and on the metathorax, the latter with a finely 

 impressed central line, and the posterior angles are silvery; head 

 tinged with green ; clypeus broadly rounded anteriorly ; mandibles fer- 

 ruginous; antennae black or brown-black ; posterior margin of the pi'o- 

 thorax arcuate ; wings hyaline, iridescent, the extreme tips slightly 

 dusky ; wing cells as in the preceding species, except that the margi- 

 nal cell is broader and the third submarginal is longer ; legs black, 

 with a very slight tinge of blue on the femora, anterior tibiae and all 

 the tarsi brown, coxae silvery beneath; abdomen ovate, convex, petio- 

 late, polished blue-black, apical segment brown and hairy. Length 2J 

 — 4 lines. 



JIab. — Connecticut, Illinois, (Coll. Am. Ent. Soc, and Mr. E. Nor- 

 ton). 



Four 9 specimens. 



85. Pompilus (Ageniaj caerulescens. 



Agenia coerulescens, Dahlb., Hyin. Eur. i, p. 93. 

 "Submedium, 2 lin. Mens. Suec. long.; blue, posterior coxa) black, 

 antennae fuscous above, luteous beneath; mouth, mandibles, palpi, an- 

 terior legs, intermediate femora entirely, and apex of posterior femora, 



