Fossorial Eymowptcra of North America. 443 



Stizus Hogardii, Latr. 



S. Hogardii, Latr., Gen. Crust, et Ins. iv. TOO. t. 13. f. 12. 9 . (1804). 

 "St. Farg. and Scrv. Encylc. Meth. x. 496." 



Hogardia rufescens, St. Farg., Hym. iii. 280. I. t. 28, fig. 5. (1837). 

 Stizus Hogardii, Cress., Proc. iv. p. 145. (1865). 



9 . Front a little narrower, pale ferruginous and in front of ocelli, 

 silvery pubescent ; ocelli more contiguous than in the preceding spe- 

 cies, diverging broad bands of long silvery pubescence lines the side 

 of the clypeus, which is yellow on the sides and ferruginous in the 

 centre; palpi much as in the preceding species. Antenna? as usual, 

 but a little slenderer at the base of the flagellum. Thorax and basal 

 half of the abdomen, less hirsute than in the other species, uniformly 

 pale ferruginous, including the tegula?, nervures and legs, which are 

 yellowish pubescent within. Abdomen with stouter lateral setae than 

 in the other species, basal ring more coarsely punctured than in the 

 preceding species; terminal two-thirds of 3d ring and remainder of the 

 abdomen black ; supraanal area much as in the preceding species, with- 

 out any yellow bands. 



Length .80 — 1.10 inch. 



Cuba, (Coll. Ent. Soc. Phil.). 



This fine species may be at once known by the immaculate abdomen, 

 the red body and black terminal half of the abdomen, and pale yellow- 

 ish inner side of the legs; also by its less densely hirsute thorax and 

 redder head, with its beautiful silvery pubescent V on the clypeus. 



LAEEA, Kiug. 



Larra. Klug. Symb. Phys. Dec. v. (1S29). 

 Bicyrtes, St. Farg., Hym. iii. p. 53. (1845). 



% 9 . Head short and transverse; vertex forming a sharp transverse 

 ridge ; ocelli wide apart, the third one removed unusually far down the 

 front, which is rather broad and triangular, compared with Stizus. 

 Eyes slightly excavated, large and very prominent; supra-clypeal piece 

 with a large rounded carina ; clypeus and labrum much raised, thick- 

 ened and very prominent; clypeus shorter than broad, excavated on 

 both front and posterior edges; surface very convex, labrum nearly as 

 long as broad, being large, long and convex; front edge slightly 

 rounded; mandibles long, rather slender, trigonate at base, very un- 

 equally bidentate, inner tooth much the smallest, lingua long and slen- 

 der, deeply divided, lobes acute, within setose; 2d joint of the scape 

 slender, not much thickened, otherwise the antenna? are much as usual. 

 Thorax smooth, not hairy, coarsely punctured; propodeum square, 

 with a large equilateral triangular piece, sculpturing very uniform over 

 the entire surface; 3d costal cell shorter and more ovate than in Sti- 



