44 J. L. LECONTE, M. D. 



I trust tliat the anomalous characters and difficult position of some 

 of the jicncra herein dcjicribcd will absolve nie for departing', in this 

 iiistaiiee, from the trenerally established scientific usage of publishing 

 in systematic or faiinal memoirs. 



TETRAGOXODERIJS Dcj. 

 T. lutipeniiis. — Depreiscd. greenish bronze, without lustre; porthorax 

 nearly twice as wide as lonj?, roundeil and sinuate on the sides, the reOexed 

 margin of which is pnle, moderately narrowed behind, hind angles rectangular 

 or neaily so, not nt all rounded. Elytra nearly twice as wide as tiie prothorax, 

 about one-third longer than wide, deeply emnrginate at base, much rounded on 

 the sides, obliquely and strongly truncate at tip; color pale, wiih small dark 

 spots forming a small subapical band, and limiting also a rather broad irregular 

 pale brow u band behind the middle: there is also a broad basal spot extended a 

 shtirt distance along the suture; the strife are fine, somewhat deeper towards 

 the li|>; the 2d and -id arc; slightly sinuous before the middle ; dorsal punctures 

 two, n3ar the 2d stria, the posterior one just behind the middle. Antenna palpi 

 and 1. gs i>ale. Length 5.6 mm; .22 inch. 



Texas; Mr. Belfrage. The elytral markings are of the san)c 

 pattern as in T. fasiiatas and uiuhiiatus, from which it abundantly 

 differs by the other characters. 



FOCiO-\US Dcj. 

 I*, parallelus.— Elongate, i)arallel, not very convex, testaceous, shining; 

 protliorax but little wider than head, a little wider than long, scarcely nar- 

 rowed and very feebly subsinuate on the sides behind, base finely margined, 

 slightly rounded near the hind angles which are rectangular, feebly carinate 

 and not prominent; dorsal lino fine, deeper towards the base, which is trans- 

 verstdy impressed and foveate each side: elytra not wider than prothorax, 

 very long and parallel, rounded and scarcely sinuate at the tip, strite fine 

 punctured, obliterated at the base, humeri with a short carina; marginal and 

 submarginal striaj very deep, confluent at the anterior fifth of the length ; dor- 

 sal punctures two, the anterior on 3d, the posterior on 2d stria. Long 5.5 mm ; 

 .22 inch. 



Texas J one female. The mentum tooth is bicuspid, and the insect 

 has otherwise ail the characters of this genus. The basal fold of the 

 elytra is nearly straight, and the humeral carina runs obliquely back- 

 wards from it. 



P. depressus. — Elongate, strongly depressed, testaceous; head rafhor 

 lar;re. mandibles more prorninent: prothorax not wider than long, widest in 

 front, feebly rounded on the sides, gradually narrowed behind and subsinuate, 

 hind angles rectangular, slightly |irominent, finely carinate ; dorsal line entire, 

 deeper behind, transverse impressions well markeil, the posterior one rugose; 

 bflsal fovea- deep rugose: elytra at base wider than the base of the prothorax. 

 basal fold strongly concave anteriorly, humeral carina forming part of the 



