NO. 16G1. ON SOME BRAZILIAN GRASSnOPPERS—REHN. 155 



HOMALOSAPARUS SORDIDATUS, new species. 



Types. — Male and female. Cliapada, Matto Grosso, Brazil. June. 

 (H. H. Smith.) Cat. No. 12096, U. S. N. M. 



Closely allied to Homalosaparus canonicus from Sao Paulo, Brazil, 

 Init differing in the hroader, blunter fastigium, sliglitly narrower eye, 

 and the longer, more compressed pronotum which has the caudal 

 margin more distinctly rectangulate. 



Size rather large; form distinctly but not very greatly compressed; 

 surface of the face, pronotum, and pleura punctate, dorsum of the 

 head somewhat rugulose. Head with its dorsal length about two- 

 thirds that of the pronotum; occiput slightly ascending to the vertex, 

 which is interocular and equal to about three-fourths of the extreme 

 fastigial width; fastigium subhorizontal (female) or slightly declivent 

 (male) when seen from the side, rectangulate (male) or slightly 

 obtuse-angulate (female) in shape, the apex slightly (male) or con- 

 siderably (female) blunted, the sides of the angle slightly arcuato- 

 concave in the male, the margins slightly elevated in the same sex. 



Fig. 36.— Homalosaparus SORDIDATUS. Lateral view of malk type, (x If) 



surface with a slight medio-longitudinal sulcus, not impressed in the 

 female; lateral foveolae impresso-punctate, arcuate elongate trigonal 

 in the male, broader and less impressed in the female; fastigio-facial 

 angle rounded rectangulate, the angle of the face considerably retreat- 

 ing from between the antennse ventrad; frontal costa rather narrow, 

 considerably (male) or hardly (female) compressed dorsad, subequal 

 ventrad, becoming obsolete some distance dorsad of the clypeal 

 suture, punctate dorsad of the ocelli, sulcate ventrad; lateral facial 

 carinas strongly and regularly divergent; eyes not prominent, elongate 

 acute-ovate in shape, the length about equal to (female) or slightly 

 more (male) than that of the infra-ocular portion of the gense; an- 

 tennae slightly longer (male) or very slightly shorter (female) than 

 that of the head and pronotum together, somewhat depressed proxi- 

 mad, subensiform, apex subacute. Pronotum with the dorsum 

 horizontal, very slightly arcuate in section; cephalic margin sub- 

 truncate, caudal margin rectangulate in the male, obtuse-angulate in 



