90 E. T. ORESSON. 



9. Fompilus hyacinthinus, n. sp. 



Female. — Deep blue, sericeous, with a purplish shade in certain 

 lights ; face short, the orbits and clypeus with a silvery-grey pubes- 

 cence ; anterior margin of the clypeus truncate ; antennae short, black ; 

 prothorax prominent, its posterior margin arcuate ; metathorax short, 

 very abrupt and truncate behind; legs same color as the body, except 

 the tarsi, which are black, the tibise and tarsi thickly spinose, the an- 

 terior tarsi strongly ciliated; wings dark fuscous, with a strong viola- 

 ceous reflection, the apex rather broadly margined with blackish ; mar- 

 ginal cell sublanceolate, broad and rather short, second submarginal 

 (|uadrate, the third longer than the second and much narrowed towards 

 the marginal; posterior wings hyaline, fuscous at tip; abdomen ovate, 

 convex, nearly sessile. Length 5 lines. 



Ilab. — Connecticut, (Coll. Mr. E. Norton.) 



One 9 specimen. Resembles ingenuus, but is much smaller, more 

 blue in color, and the legs more strongly spinose. 



10. Fompilus l)revicornis, n. sp. 



Male. — Narrow, subcylindrical, black, with a beautiful purple re- 

 flection ; the face, sides of the scutellum, and the apical half of the 

 metathorax, clothed with a fine, dense silvery pubescence; apical mar- 

 gin of the clypeus truncate ; antennae opaque black, stout, not as long- 

 as the head and thorax ; posterior margin of the prothorax arcuate ; 

 metathorax with a deeply impressed line down the middle; legs seri- 

 ceous, the tibiae and tarsi with numerous, rather stout spines; wings 

 fusco-hyaline, with a purplish reflection, hyaline or subhyaline at base 

 and darker on the apical margins; marginal cell elongate, lanceolate, 

 oblique at tip, third submarginal cell subtriangular, being much nar- 

 rowed towards the marginal ; abdomen elongate, narrow, subcylindri- 

 cal, convex, immaculate, the purple reflection brilliant. Length 5 — 6 

 lines. 



Hah. — Pennsylvania, (Coll. Am. Ent. Soc.) 



Five % specimens. This pretty species is recognized by the narrow 

 form, by the short antennae, by the conspicuous purple color, and by 

 the silvery ornamentation of the thorax, which is very beautiful. 



11. Fompilus atramentarius. 



Pompilus atramentariun, Dalilb., Ilym. Eur. i, p. 48, % . 



''Body black, opaque, with a violaceo-sericeous pubescence; wings 

 black ; tibiae and tarsi sparsely spinose, anterior tarsi ciliated. Length 

 ?>l lin. Mens. Suec." 



Hab. — " North America." Not identified. 



