1865.] 137 



shining, fulvous. Wings hyaline, the apical fourth fuliginous, the 

 nervures yellowish. Legs entirely fulvous, except their coxae and tro- 

 chanters, which are black ; the tarsal tips are slightly dusky. Abdo- 

 men black, smooth and polished ; the petiole about one-half as long as 

 the rest of the abdomen, and clothed with long pale pubescence; first 

 segment with a shallow excavation in front. Length 82 lines; expanse 

 of wings 12 lines. 



Collection. — Ent. Soc. Philad. Two specimens. 



Genus SPHEX, Fabr. 

 Sphex Lanieri, Guer. 

 Sphex Lanieri, Guer. Icon. Reg. Anim. iii, p. 433; LaSagra's Hist. Cuba, Ins. 



p. 760. 

 Sphex aurulenta, Guer. Icon. Reg. Anim. pi. 70, fig. 2. 

 Collection. — Ent. Soc. Philad. Six specimens. 



Sphex aurifluus, Perty. 

 Sphex aurifluus, Perty, Del. An. Art. p. 142, pi. 27, fig. 19. 

 Sphex ornata, St. Farg. Hym. iii, p. 344. 

 Collection. — Ent. Soc. Philad. Fifteen specimens. 



Genus PRIONONYX, Dahlb. 

 Priononyx Thomae, Fabr. 



Sphex Thomce, Fabr. Ent. Syst. ii, p. 199. 

 Pepsis Thomce, Fabr. Syst. Piez. p. 209. 

 Priononyx Thomce, Dahlb. Hym. Europ. i, p. 28. 

 Collection. — Ent. Soc. Philad. Eight specimens. 



Fam. LARRID^. 

 Genus LARRADA, Smith. 

 Larrada fulviventris, Guer. 



Lyrops fulviventris, Guer. Icon. Reg. Anim. p. 440; LaSagra's Hist. Cuba, Ins. 



p. 766, pi. 18, fig. 9. 

 Larrada fulviventris, Smith, Brit. Mus. Cat. Hym. iv, p. 286. 

 Collection. — Ent. Soc. Philad. Six specimens. 



Larrada ignipennis, Smith. 



Larrada ignipennis, Smith, Brit. Mus. Cat. Hym. iv, p. 288. 

 Collection. — Ent. Soc. Philad. Two specimens. 

 The two specimens before me seem to answer to Mr. Smith's descrip- 

 tion of this species, except that instead of the basal three-fourths of the 

 wings being " bright ferruginous," they are orange-yellow. 



? Larrada fuliginosa, Dahlb. 



Larra fuliginosa, Dahlb. Hym. Europ. i, pp. 138 and 472. 



Larrada fuliginosa, Smith, Brit. Mus. Cat. Hym. iv, p. 288. 



Opaque black ; head clothed with a short, cinereous pubescence, very 

 dense and somewhat silvery-sericeous on the face and cheeks; clypeus 



