340 PROCEEDINGS OF THE NATIONAL MUSEUM. 



the liiiid femora, brownish fuscous, with a conspicuous, slender, alter- 

 nating series of dark fuscous and luteous quadrate spots along the 

 middle line; wings not very broad, hyaline, the veins fusco luteous. 

 Fore and middle femora very slightly enlarged in the male; hind 

 femora slender, compressed, luteo testaceous, very obscurely and on the 

 sides obliquely bifasciate with fuscous, most distinctly on the upper 

 face, the geniculation more or less infuscated; hind tibiae luteo-testa- 

 ceous, the spines black beyond the base, ten to twelve in number in the 

 outer series. Extremity of male abdomen clavate, a little recurved, the 

 supraanal plate subtriangular with expanded base and feebly angulate 

 sides, the apex subrectangulate, the apical third a little tumid and dis- 

 tinctly elevated above the median portion, the median sulcus deep, 

 percurrent. narrow in the middle and expanded at both extremities; 

 furcula consisting of a pair of adjacent, subparallel processes, each of 

 which consists of a tumid base bearing an apical, equal, slender, arcuate 

 projection hardly longer than the base; cerci with asubequal, rectangu- 

 late basal portion, straight but transversely arcuate, more than half as 

 long again as broad, the upper apical corner of which is produced as a 

 slightly twisted rounded subspatulate lobe, hardly longer than broad, 

 incurved and exteriorly sulcate, about two thirds as broad as theba>al 

 portion, which is thus rectangulate at its lower apical extremity; sub- 

 genital plate small, narrow, apically narrowed, the apical margin a little 

 incrassate, entire, not elevated. 



Length of body, male, 17 mm., female, 22 mm.; antennae, male, 8 mm., 

 female, 7.5 mm. ; tegmina, male and female, 15 mm. ; hind femora, male, 

 11.75 mm., female, 13.5 mm. 



One male, 3 females. Munsons Hill [Kentucky?], July 12 (Museum 

 Comparative Zoology); Newport, Campbell County, Kentucky, C. M. 

 Willard v same). 



The single female from Newport is placed here with some doubt on 

 account of its divergence from the others; and all the specimens have 

 been dried after long immersion in alcohol, bleaching the colors to some 

 extent, and contracting some of the parts. 



115. MELANOPLUS ARIZONAE. 



Melanoplus arizonae SCUDDER, Proc. Boat. Soc. Nat. Hist., XX (1879), pp. 64-65; 



Cent. Orth. (1879), pp. 53-54. BRUNER, Rep. U. S. Ent. Coram., Ill (1883), 



p. 60. 



Of medium size. Head rather small, subcompressed, not elevated, 

 moderately arched; eyes moderately prominent; interspace between 

 the eyes as broad as the length of the basal antenna! joint; fastigiuin 

 very shallow, with moderately sharp but not prominent lateral walls, 

 which give it a subspatulate form; frontal costa rather broad, above 

 slightly tumid, with punctulate sides, scarcely broader below, sulcate 

 at the ocellus and to some degree below it. Prouotuin rather slender, 

 rather uniform but distinctly broadening on the metazona, which is 

 separated from the prozona by a considerable depression and a pretty 

 deep sulcus; metazona rather distinctly punctate; median carina dis 



