72 NEW NORTH AMERICAN ACRIDID.E BRUNER. 



Trimerotropis rnodesta sp. nov. 



Pale tile* color inclining to gray, with two rather narrow dusky bands 

 upon the tegmina. Posterior tibiae red; the wings with a wide, light, 

 fuliginous, arcuate baud just beyond the middle, the basal portion dull 

 yellow. 



Vertex of moderate width, shallowly sulcate, partly closed in front 

 with the median carina faint; frontal costa not prominent, the sides a 

 trifle constricted just below the ocellus, plain above, sulcate from the 

 autenme down. Face distantly and shallowly punctate, slightly oblique. 

 Prouotum with the disk nearly flat, the anterior lobe much the same as 

 in T. thalassica; posterior lobe coarsely granulated and furnished with 

 a series of medium sized tubercles arranged in a similar manner with 

 those of T. pistrinaria and T. laticincta Sauss. Tegmina as long as the 

 body, extending about one-fourth of their length beyond the tip of the 

 abdomen. Posterior tibia? and femora heavy, as long as the abdomen. 



General color pale rust brown inclining to gray, lightest beneath. 

 Tegmina furnished with two narrow converging brown bands and a 

 few scattered quadrate spots on the basal part of the apical third; wings 

 pale yellow, crossed by a wide but not very dark fuliginous band 

 shaped as in T. vinculata, save that the distal ray reaches nearly to the 

 base of the wing in the present species. Apical portion hyaline, with 

 the principal veins infuscated. Posterior femora with but a single 

 dusky band outside, and two black and three yellow ones inside. Pos- 

 terior tibiae light coral red. Antennae very dark brown on the apical 

 third and of the color of the body on the basal portion. 



Length of body, $ , — mm , 9 , 26 mm ; of antenna?, $ , — mm , 9 , 10.5 mm ; 

 ofpronotum, $ , — n,m , 9, 5.5 mm ; of tegmina, S, — " mi , 9, 20 mm ; of 

 hind femora, S , — mm , 9 , 13.25 mm ; of hind tibia?, $ , — Ium , 9 , 12 ram . 



Described from two female specimens. 



Hab.— Silver City, N. Mex. (Charles H. Marsh). 



There is some resemblance between this insect and the one known as 

 Conozoa Behrensii Sauss., but a comparison of the two will at once show 

 their distinction. The main cause of their resemblance is their color, 

 and this resemblance becomes less apparent upon a slight comparison. 



Trimerotropis thalassica sp. nov. 



About the size of T. vinculata Scudd. Varying in color from dark to 

 griseo-testaceous, with the colored portion of the wings sea-green. 

 Wiugs and tegmina but dimly banded. Posterior tibiae deep ccerulean 

 with basal annulus of dirty whitish. 



Head, when seen from in front, as broad above as below, a little longer 

 than common with the species of the genus; the eyes rather large and 

 prominent, separated above by the flat ( 9 ) or slightly sulcate ( A ) ver- 

 tex, which iu both sexes is furnished with a faint median carina that 

 terminates in front without perceptibly branching and uniting with the 



