1882.] ^^i [.layne. 



wide ; hind coxiB moderately long, narrow, coxal plates oul}^ attaining 

 side pieces. Legs stout, reaching sides of body ; first joint of tarsus long, 

 second shorter, third and fourth still smaller, the fifth equals the first. 

 This genus diflers from Tragoderma b}^ the absence of the antennal fos- 

 sae. There is but one species. 



A. primus, n. sp. Elongate, moderately convex, black, clothed with 

 very sparse, semi-erect, moderately long, cinereous pubescence. Elytra 

 piceous, with a moderately broad transverse sinuous band on the basal 

 third yellow, antennae, abdomen and legs, piceous. Head densely a'nd very 

 coarsely punctate, antennae 11-jointed ; joints 1-2 large ; 3-5 much 

 smaller ; 6-11 large and wide, forming an elongate serrated club. Thorar 

 very densely and coarsely punctate, pubescent at sides. Elytra coarsely, 

 much less densely punctate ; a transverse depression across the base, 

 piceous except a transverse sinuous yellow band at the junction of the 

 basal and middle thirds, which is moderately broad and directed slightly 

 forward, and somewhat more densely covered Avith lighter hair. Body 

 beneath rufous, very coarsely punctate, pubescence shorter, more dense 

 and recumbent. Length .08 inch ; 2mm. (Fig. 45.) 



Two specimens from Texas in Dr. LeConte's cabinet, from Mr. Bel- 

 frage. 



The single light band on the elytra will serve as an additional character 

 to separate this species from any of our known Trogoderma. . 



TROGODERMA Latr. 



Oblong, convex, dark, elytra marked with sinuous rufous bands, bear- 

 ing light pubescence. Head small, a distinct ocellus, front flat, clypeus 

 short. Eyes prominent, moderately coarsely granulated, round, entire in 

 simplex, sternale and ornatum, emarginate in front in inclusum. Thorax 

 very convex, twice as wide at base as long, base three times as wide as 

 apex. Insinuated, slightly produced sub-acutely in the median line, sides 

 arcuate, hind angles moderately prominent. The antennae are 11-jointed, 

 terminated by a club which is 6-jointed and strongly serrate in the males 

 of sternale and ornatum, 7-jointed, not pectinate in the males of inclusum, 

 and 5-jointed in the females o^ simplex, and 4-jointed in the females of the 

 other species. Scutellum moderately large, uncovered. Elytra with 

 sides sub-parallel, apices separately rounded. 



Antennal fossa occupying the entire space between the prosternum and 

 lateral margin of thorax, except in simplex, where they are limited to the 

 anterior part of the prosternal suture. Prosternum moderately broad and 

 long, not lobed in front, produced behind into a long tip, which is broad, 

 entirely dividing the mesosternum in simplex, ornatum and inclusum, acute 

 in sternale, the mesosternum being only deeply emarginated. Mesocoxee 

 very widely separated. Posterior coxal plates moderately long and wide, 

 not reaching the sides. Legs stout, femora grooved beneath to receive 



