1905.1 



NATURAL SCIENCES OF PHILADELPHIA. 



793 



Closely allied to B. thoracicus, but differing in the slightly smaller 

 size, narrower and longer anal area of the tegmina as well as the less 

 distinct and more numerous nervures of the same area, the subtruncate 

 and narrowly incised supra-anal plate, the broader subgenital plate 

 and rather different coloration. 



Size medium; form elongate ovoid. Head with the narrowest por- 

 tion of the interspace between the eyes about equal to the greatest 

 dorso-ventral depth of the eyes ; antennae about a 

 fourth again as long as the width of the pronotum. 

 Pronotum subovate, transverse, half again as broad 

 as long; cephalic margin subangulate, caudal 

 margin arcuate, cephalo-lateral sections moderately 

 deflected . Tegmina elongate, costal margin arcuate, 

 more distinctly so proximad than distad; apex 

 narrowly rounded ; sutural margin arcuate in the 

 distal third rounding to the apex ; venation distinct, 

 the costal area only irregular reticulate; anal area 

 about two-fifths the length of the tegmen, the anal 

 vein slightly but evenly arcuate. vSupra-anal plate 

 rather broad, bilobate, the median emargination 

 V-shaped, rather shallow and broad. Cerci short, 

 very slightly exceeding the supra-anal plate, taper- 

 ing. Subgenital plate large, broad, slightly pro- 

 duced, the apex blunt and rather narrowly rounded. Femora with- 

 out spines on the ventral margins. Cephalic tarsi with the distal joint 

 slightly longer than the proximal ; median tarsi with the proximal and 

 distal joints subequal; caudal tarsi wnth the proximal joint slightly 

 longer than the distal. 



General color pale clay-color, the pronotum with the ground color 

 ochraceous. Head pale ochraceous, with the region between the eyes, 

 between the paired ocelli, except a median spot of the base color, and 

 a median line on the lower face burnt umber; eyes blackish; antennae 

 blackish-brown. Pronotum with a broad bar of blackish on the caudal 

 margin, tapering laterad and disappearing before the angles of greatest 

 width, two pairs of irregularly rounded spots of the same color situated 

 before the middle and in pairs with the space between them slightly 

 greater than their distance from the cephalic margin, caudad of these 

 a pair of rather large comma-shaped spots of the same color and caudad 

 of these a pair of roughly trigonal spots. 



Limbs with the tarsi, tibiae and distal sections of the femora suffused 

 with burnt umber. Abdomen with the lateral marks of the dark 



Fig. 1. Bldberus 

 hiuUcyi n. ^p. Type. 

 Natural size. 



