WILLIAMS: LARRID.E OF KANSAS. 141 



A large deep black species, with the apical portion of the abdomen 

 bright red. The j of this species is more pilose, has the abdomen en- 

 tirely black and the pygidial area pilose. 



From Cheyenne and Douglas counties. Rare. 



NOTOGONIA Costa. 



Costa; Ann. Mus. Zool. Univ. Napoli (Ann. IV), p. 80 et 82; 1867. 

 Syn. Larrada Sm. 1856. 

 Larra Patt. 1880. 



Form rather slender to stout. Head slightly wider than thorax, the 

 facial folds and depressions much as in Lnrra; antennae comparatively 

 slender, the scape rather long; ocelli bordering on a low swelling, pos- 

 terior ocelli small, oval, flattened and transverse; mandibles emarginate 

 beneath, with two more or less distinct teeth within. Thorax rather 

 long; pronotum angled into the mesonotum and somewhat depressed 

 below the level of the latter; propodeum long and truncate posteriorly; 

 marginal cell of fore wings truncate, the appendiculation fairly distinct; 

 legs elongate, spinose. Pygidial area pilose. 



J . Comb of fore tarsi hardly differentiated, with only a few spines; 

 pygidial area with well-defined sides, rounded triangular, and pubescent 

 except at extreme base. 



7 . Fore femora entire beneath at base; pygidial area not well de- 

 fined, finely though not densely pubescent throughout; eighth ventral 

 segment rounded. 



This genus is close to Larra. and, like it, is poorly represented in the 

 United States. 



Notogonia argentata (Bve.). 



(Fig. .34, ocellar area; 49, thorax; 88, antennal cleaner; 80, fore tarsus; 



97, pygidium, j .) 

 Larra argentata (Bve.) ; Ins. Afr. at Amer., p. 119, taf. Ill, f. 9; 1805. 

 Notogonia argentata Fox; Proc. Acad. Nat. Sci. Phil., 485-486; 1883. ^ j . 

 An easily recognized steel gray species, with subhyaline wings and 

 long legs. Barton, Russell, Phillips and Douglas counties; June-Septem- 

 ber. More common in eastern Kansas. 



Larropsis Patt. 



Patton; Ent. News, III, 90; 1892. 



Syn. Ancistromma Fox; Proc. Acad. Nat. Sci. Phil., 487; 1893. 



Form moderately stout, naked or sparsely pubescent. Head usually 

 short, regularly rounded, distinctly wider than thorax; antennae usually 

 longer than in either Tachytes or Tachyapliex, the scape being com- 

 paratively shorter and stouter than in the above genera; head in front 

 distinctly raised along the inner eye margin ; ocelli bordering a swelling 

 which is less distinct and more weakly furrowed than in Tachytes or 

 Tachysphex; foi'e ocellus round, the posterior pair flattened, elongate and 

 hooked posteriorly, shorter and more obliquely arranged than in Tachy- 

 tes; mandibles emarginate beneath, with two teeth interiorly. Thorax 



