Bruner: South A.merican Axrid< \. L39 



femora of moderate robustness, reaching a little beyond the apex of the 

 abdomen in both sexes; tibiae provided externall) with eighl spines. 

 Supra-anal plate triangular, the middle sulcate ai base; cerci of male 

 lone,, slender, gently incurved apically; Ias1 ventral segmenl short, 

 narrowing, entire a1 apex. Prosternal --pine pyramidal, of moderate 

 -i :< 



eral color testaceo-ferrugineous with some fuscous mottlinj 

 head, pronotum, and legs, much darkest in the male. Hind femora 

 tnfuscated internally, tinged with olivaceous on the outer disk; the 

 genicular lunules Mack. Hind tibia' pale orange-red ; antennae of males 

 testaceous, of females reddish becoming infuscated apically. 



Length of body, d 71 . 16 mm., 9 . -i mm.; of pronotum, c/ 1 , 3. 1 mm., 

 9, 4.1 mm.; of tegmina, a 71 . 2.3 mm, 9, 3 mm.; of hind femora, 

 o". 9.5 mm., 9,i- mm. 



Habitat. — The types, o 71 and $ , together with a paratypical 9 

 come from Corumba, Brazil, where they were taken during March 

 by II. II. Smith. These insects are deposited in the Carnegie Museum. 



11)4. Paradichroplus geniculatus sp. nov. 



Most closely related to P . f 11 si fa rm is Giglio-Tos, but differing from 

 that species by having the knees of hind femora uniformly pale fer- 

 ruginous, while the legs themselves are pale greenish olive. Abdomen 

 of male strongly tinged with orange. 



Size small, form rather slender. Entire insect sparsely hirsute. 

 I bad of medium size, about as wide as the front edge of the pronotum, 

 the front gently oblique; eyes fairly large, but not prominent, in the 

 female very little, in the male about one-fourth, longer than the 

 anterior margin of the cheeks immediately below them, vertex a little 

 wider than (9 ), or not quite as wide (o 71 ) as the basal antennal joint; 

 the fastigium strongly depressed, in the male deeply, in the female 

 shallowly, sulcate. Frontal costa prominent and profoundly sulcate 

 throughout, slightly widest above the ocellus, in the female not quite 

 reaching the clypeus. Lateral or facial carinae prominent, straight, 

 but little divergent below. Antenna' filiform, slender, somewhat ex- 

 ceeding the combined length of head and pronotum. Pronotum 

 smooth, moderately divergent, without traces of lateral carina? and 

 with the faint median carina showing only on the hind lobe; transverse 

 sulci prominent; anterior margin broadly rounded upon the occiput, 

 the posterior margin very widely shallowly and roundly emarginate 



