12 Psyche [February 



following; 2-10 very gradually diminishing in length, the tenth a little wider than 

 long. Neck about I as wide as the head; prosternum strongly carinate, margins 

 of ventral segments both above and beneath with a row of widely spaced porrect 

 setae, and on the lower surface with sparse erect or suberect discal setae. Front 

 tarsi short, slightly thickened; hind tarsi slender, nearly as long as the tibiae. 



Xenomedon formicaria sp. nov. 



Ferruginous throughout or with the head and abdomen slightly darker. Head 

 and prothorax very densely coarsely punctuate, the punctures in mutual contact 

 throughout; elytra more finely and less densely punctuate; abdomen very finely 

 and moderately closely so. Head subquadrate, just visibly widened behind, hind 

 angles broadly rounded; eyes small, situated at about four times their length from 

 the hind angles, their diameter about | the length of the basal joint of the antennae. 

 Prothorax just perceptibly wider than the head, a little wider than long, sides feebly 

 convergent posteriorly and with a short faint sinuation at middle; all the angles 

 rounded. Elytra about \ longer than the prothorax, as long as wide or very nearly 

 so, wider behind, distinctly impressed along the side margin giving a subexplanate 

 appearance. Abdomen broad, sides arcuate, fifth segment as long as the two pre- 

 ceding, the sixth broadly, moderately deeply sub triangularly emarginate in the male. 

 Length 2.9-3.5 mm.; width .7 mm. 



Described from two males taken by the writer at Pasadena, 

 California, Oct. 28 and Dec. 3, in nests of Formica pilicornis, 

 beneath large stones. 



Xenomedon will by Casey's table fall between Platymedon and 

 Caloderma, but is by the characters given not very closely allied 

 to any of the genera there recognized. The gular sutures are more 

 widely separated than in Platymedon, and distinctly more distant 

 in one of the two specimens than in the other. 



A NEW PROSCOPIID GRASSHOPPER FROM PERU. 



By A. N. Caudell, 



Bureau of Entomology, U. S. Department of Agriculture, 

 Washington, D. C. 



Epigrypa brevicornis sp. nov. 



Most nearly allied to E. curvicollis from Ecuador but differs from that species, 

 as well as from the third member of the genus, E. variegata from Colombia, in having 

 a terminal spine above on the hind tibiae on the outer side only, instead of the inner 

 side, and in the antennae of the female being shorter than the rostrum, instead of 

 surpassing it. 



