N0 . 1124. RE riSIOX OF THE MELA NOPLISC UDDER. 7 9 



bly longer than the abdomen in the male, nearly or quite as long as the 

 abdomen in the female. Supraaual plate of male subtriangular, with 

 a slight, rounded, lobiform, apical prolongation, the surface nearly flat, 

 with a slight, rather broad median sulcus on the basal half or more; 

 furcula consisting of a pair of very slightly projecting but moderately 

 large, rounded, attingeut lobes; cerci compressed more than commonly 

 in this genus, broad at base, tapering pretty regularly in the basal two- 

 thirds, mostly by the excision of the upper side, beyond equal, apically 

 bluntly rounded, scarcely incurved; infracercal plates apically narrow, 

 nearly as long as the supraaual plate. 



Length of body, male, 19 mm., female, 23 mm.; antennae, male, 7.75 

 mm., female, 7.25 mm.; tegmina, male, 16.25 mm., female, 16 mm.; hind 

 femora, male, 10.1 mm., female, 11.75 mm. 



Five males, 4 females. Fort Whipple, Yavapai County, Arizona; 

 Mohave Desert, Loew (U.S.]S".M. [No. 717J). 



This species differs slightly from Ae. uniformis in markings, but more 

 in the sculpture of the face and of the male abdominal appendages, 

 which are very distinct in the basal breadth of the cerci and the flat- 

 ness of the supraaual plate. 



io. AEOLOPLUS OCULATUS, new species. 



(Plate VI, fig. 4.) 



Pale yellowish testaceous, uniform, the only variations from it being 

 in the pale reddish antennae, chocolate brown eyes, the faint, fuscous, 

 crowded, and delicate punctuation of the submarginal sulcus of the 

 prozona and of the whole of the inetazona, the bluish main rays of the 

 wings, the feeble, plumbeo-fuscous, sagittate banding of the hind 

 femora, the narrow purplish crescent of the genicular lobes and the 

 very pale purplish hind tibiae, the spines of which are yellowish in the 

 basal, black in the apical half. The eyes of the male are very large 

 and prominent, thefastigium pretty deeply and rather narrowly sulcate 

 between the eyes, the frontal costa moderately broad, subequal, nowhere 

 sulcate, and rather indistinctly percurrent. Posterior sulcus of the 

 prozona swerving backward mesially to form a very broad W, and yet 

 in the middle much nearer the sulcus in front than that behind; sulcus 

 in front of it percurrent, straight, but angularly bent forward laterally. 

 Tegmina considerably longer than the abdomen in the male. Supra- 

 anal plate of male triangular, with the apex slightly produced and 

 rounded, nearly flat, with a rather broad and shallow median sulcus, 

 suddenly narrowed and almost immediately terminated in the middle 

 of the plate, the margins sharply defined; furcula consisting of a pair 

 of juxtaposed, small, rounded lobes, scarcely perceptible by any projec- 

 tion; cerci broad at base and equal on basal fifth, but in the next two 

 fifths rapidly tapering, almost entirely by the falling slope of the upper 

 side, beyond subequal, bluntly pointed, longer than the supraanal plate 



