1865.] 



451 



polished, somewhat narrowed at base, delicately punctured, the incis- 

 ures of the dorsal segments rather deeply marked ; apex acuminate, 

 slightly pubescent, with a long, slender, acute, dull honey-yellow, sting- 

 like process. Length, including the aculeus, 6 lines ; expanse of wings 

 7 J lines. 



One specimen. Remarkable for the long sting-like process at the 

 apex of the abdomen. 



Fam. POMPILID^E. 



Genus POMPILUS. Latr. 



1. Pompilus JEthiops. n. sp. 



Large ; deep black ; clypeus deeply emarginate : wings black, violaceous. 



Female — Deep black, sometimes with a faint bluish reflection, opaque, 

 immaculate ; clypeus rounded on the sides, deeply and obtusely emar- 

 ginate in the middle anteriorly; antennae black, the flagellum brown- 

 ish-sericeous. Thorax gibbous, the posterior margin of the prothorax 

 arcuate; metathorax rounded above, truncate behind, clothed with 

 scattered black pubescence. Wings long, black or very dark fuscous, 

 with a more or less deep violaceous or purplish reflection, the apical 

 margin of both wings darker ; second submarginal cell quadrate, slightly 

 oblique, receiving the first recurrent nervure at its tip ; third submar- 

 siinal as Ions; beneath as the second submarginal, but narrowed more 

 than one-half towards the marginal, and receives the second recurrent 

 nervure about the middle. Legs deep velvety-black, sericeous ; ante- 

 rior tarsi ciliated with spines ; the four posterior tibiae and tarsi with 

 uumerous short spines. Abdomen rather short, convex, sessile or sub- 

 sessile, deep black, with a slight bluish reflection. Length 8 — 10 lines ; 

 expanse of wings 16 — 20 lines. 

 Four specimens. 



2. Pompilus scelestus, n. sp. 



Black, with a faint bluish or purplish reflection; anterior margin of clypeus 

 slightly concave; wings blackish, violaceous. 



Female. — Deep black, with a more or less faint bluish or purplish 

 reflection, especially observable on the abdomen, immaculate; head with 

 sparse black pubescence ; anterior margin of the clypeus slightly con- 

 cave, finely margined, shining ; antennae brown-black, sericeous ; pos- 

 terior margin of the prothorax angular ; metathorax short, obtusely 

 rounded. Wings more or less blackish, with a rather deep violaceous 

 reflection; the apical margins generally darker; second submarginal 

 cell subquadrate, receiving the first recurrent nervure near the tip, the 

 basal transverse nervure rounded inwardly; third submarginal larger 

 than the second, nearly quadrate, only slightly narrowed towards the 



