218 BRAZILIAN DERMAPTERA AND ORTHOPTERA 



Size medium: form faintly compressed, abdomen cylindrical: surface in 

 general smooth with a greater or lesser degree of adpressed pubescence, the 

 dorsum of the pronotum, the occiput and the genae freer from this covering than 

 the other portions of the body, the cephalic margin of the pronotal disk and the 

 interantennal region with elongate bristle-like hairs. Head short, broad and 

 relatively deep: occiput \nth its more elevated section short, thence cephalad 

 the occiput is very declivent to the relatively narrow fastigium, which is low, 

 narrow and bearing, on a level with the dorsal base of the antennae, the median 

 ocellus: palpi elongate, very slender; third joint subequal in length to the fourth 

 joint, the fifth joint faintly more than half again as long as the fourth joint, 

 moderately arcuate, gently expanding in distal three-fifths, thence narrowing 

 to the narrowly rounded apex: eyes ovoid in basal outline, their depth subequal 

 to that of the infra-ocular portion of the genae, moderately prominent when 

 seen from the dorsum: antennae elongate, about twice as long as the body, the 

 proximal joint large, very strongly depressed. Pronotum, when seen from the 

 dorsum, having its disk transverse subquadrate, slightly broader caudad than 

 cephalad, the greatest length of the disk contained one and one-half times in the 

 greatest width of the same; cephalic and caudal margins of disk subtruncate; 

 median line with a sulcation which encloses an irregular carina, while caudad a 

 transverse subelliptical area crosses the median line; lateral angles of the disk 

 very broadh rounded : lateral lobes shallow, the greatest (cephalic) depth of the 

 same contained about twice in the length of the lobes; ventro-cephaUc angle 

 broadly rounded, ventral margin ascending oblique-arcuate, ventro-caudal 

 angle obsolete, the ventral margin regularly arcuate into the caudal margin of 

 the disk; caudal half of the lateral lobes moderately impressed. Tegmina 

 covering slightly more than the proximal half of the abdomen, dorsal field 

 relatively broad, its greatest width contained about one and one-half times in 

 the tegminal length: lateral field regularly narrowed distad; discoidal vein 

 closely i)aralleling the humeral vein, bearing about nine poorly defined rami, 

 which are elongate sigmoid proximad and angularly broken distad, a weakly 

 indicated spurious vein connecting the veins at the point of fracture; humeral 

 vein strong, gently arcuate except for a short distal section which is diverted 

 toward the margin : discoidal vein distinct, gently arcuate in a reverse fashion 

 from the humeral vein, the discoidal almost touching the humeral vein proxi- 

 mad; median vein weak; stridulating vein relatively weak, closely proximal in 

 position on the tegmina, its transverse section gently arcuate; axillary veins 

 two in number, converging toward the anal node; principal oblique vein 

 straight oblique from the node to the periphery of the speculum, accessory 

 oblique veins four in number; postaxillary veins two in number, longitudinal; 

 diagonal vein short, sinuate, connecting the first postaxillary vein with the 

 speculum: general form of the speculum circular-ovoid, the narrow portion 

 directed proximad, the transverse veins two in number, regularly spaced, the 

 proximal portion of the veins being sharply right-angled: distal margin of 

 dorsal field in general form convex, but with three slight flattenings, one mesad 

 and the others laterad. Wings aborted, not evident. Supra-anal plate moder- 

 atelj' elongate, rounded trigonal, the lateral margins slightly constricted mesad 

 and with the apex broadly rounded; surface of plate distinctly depressed 



