12 The Ohio Naturalist. [Vol. VII, No. 1, 



Fastigium of the vertex elongate, triangular, with a moderate- 

 ly broad but shallow median longitudinal sulcus, the apex slightly 

 acuminate; frontal costa rather deeply sulcate, widened above 

 the antennae, nearly equal below, the face unicolorous, impunc- 

 tate, strongly oblique; antennae only a trifle longer than the head 

 and pronotum taken together; eyes moderately prominent, a 

 little less divergent than in the males of A. chlorizans, about 

 twice the length of that portion of the cheeks below them. Pro- 

 notum subcylindrical, rather closely and finely pvmctate, much 

 more closely so in front and on the hind lobe, the latter with a 

 prominent median carina and short shoulders, about four-fifths 

 as long as on the anterior lobes. Tegmina narrow, extending 

 one-fifth of their length beyond the apex of the abdomen. Hind 

 femora slender, smooth, as long as the abdomen. The latter 

 graceful, tapering, the last ventral segment short and provided 

 with a lateral blunt tooth at each side, the center prolonged into 

 a short boot-like projection in which the toe is directed to the 

 rear. Hind tibiae slender, the lateral carinae poorlv developed 

 as compared with some of the other species of the genus. Pros- 

 ternal spine slender, straight, the apex evenly rounded. 



General color pale grass-green above, yellowish white below. 

 Wings caerulean, the dorsum of the abdomen leaden gray. An- 

 tennae ferriginous, clypeus, labrum, tip of last ventral segment 

 and hind tarsi pink. 



Length of body, 22 mm., of antennae, 7 mm., of pronotum, 

 3.65 mm., of tegmina, 20 mm., of hind femora, 11.5 mm. 



Habitat. A single male from San Jose, February 5. 



This genus appears to be represented by quite a number of 

 species — a dozen or more — when we consider the two Americas. 

 They fall into two well defined sections or possibly into distinct 

 genera. 



22. Arnilia sp. The collection also contains a single female specimen of 



what appears to be a second species of Arnilia; but, since there 

 are at least a half-dozen distinct species of similar size at hand 

 as I write, it is difficult to definitely place it with certainty. The 

 characters, so far as observed, are more pronounced in the males, 

 and until I have had an opprotunity to critically study the dozen 

 or more species of the genus of which I have specimens no attempt 

 will be made to determine the individual just referred to. It was 

 taken Fel)ruary 6, at Amatitlan. 



23. Inusia obscura (Thumb.) (?) Two pairs of a slender locust taken at 



Los Amates, F'ebruary 25-27, are referred with some doubt to 

 Thunberg's Acridimn obscurum. Whether they are that insect 

 or not, they belong to Giglio-Tos' genus Inusia which contains 

 two or three representatives in tropical America. 



24. Cornops scudderi n. sp. A moderately robust, medium sized, grass- 



green and testaceous insect with a broad piceous band on each 

 side which extends from the back edge of the eyes along the upper 

 half of the pronotum and pleura and is bordered below by one 

 of greenish yellow. The costal margin and disc of the tegmina 



are dark brown or fuscous. 



Head somewhat wider than the front edge of the ])ronotum; 

 the eyes a little prominent and strongly divergent, a trifle longer 

 than that portion of the cheeks below them; vertex nearly as 

 broad as the frontal costa between the antennae, rather deeply 

 sulcate to the tip of the fastigium, the latter a little wider than 

 long, somewhat depressed and blvmt in front; frontal costa 

 prominent, a little widest above the ocellus, gently sulcate, 



