SCUDDER. NORTH AMERICAN CEUTHOPHILI. 91 



spines, the longest about as long as the tibial spurs (<?) or wholly 

 unarmed or with a few raised points apically (9), the inner carina 

 very distantly and subequidistantly serrulate, finer in the 9 tban in 

 the (J, the intervening sulcus moderate. Hind tibia? straight in both 

 sexes, sliglitly longer than the femora, armed beneath with a single 

 subapical spine, besides the apical pair ; spurs subalternate, the basal 

 near the end of the proximal fourth of the tibia, about half as long 

 again as the tibial depth, set at a varying angle with the tibia, the 

 outer series at least in the ^ being directed outward, the inner series 

 both inward and posteriorly, divaricating about 120°, the tips incurved ; 

 inner middle calcaria considerably longer than the outer, more than 

 twice as long as the others or as the spurs, and nearly as long as the 

 first joint of the tarsi. Hind tarsi fully two fifths as long as the tibise, 

 the first joint fully as long as the remaining joints together, the second 

 three times as long as the third and with it as long as the fourth. 

 Cerci very slender and tapering in their distal half, stouter and sub- 

 equal in their proximal half, scarcely so long as the femoral breadth. 

 Ovipositor about half as long as the hind femora, straight, slender and 

 equal beyond the basal third, the tip produced, acuminate and up- 

 turned, the teeth long, aculeate, arcuate. 



Length of body, (^ 15 mm., 9 12 mm. ; pronotum, ^ 9 4.5 mm. ; 

 fore femora, $ 5.25 mm., 9 5.1 mm. ; hind femora, S 12.2 mm., 

 9 11.5 mm.; hind tibia?, ^ 13.1 mm., 9 12 mm.; ovipositor, 5.5 mm. 



1 (^,39. Hot Springs, Dak. ; Denver, Col., Beales ; Las Cruces, 

 N. Mex., C. H. T. Townsend ; Silver City, N. Mex., C. H. Marsh ; — 

 all through L. Bruner. In the U. S. National Museum, mostly from 

 the Riley collection, are 2 <?, 5 9 •> from Laramie and Red ButtPS,Wyo., 

 Custer, Colorado (Cockerell), Colorado, and New Mexico. Thomas 

 reported it from S. E. Colorado, Empire, CoL, and Red Buttes, Wyo. ; 

 Townsend from Colorado and New Mexico. 



48, Ceuthopiiilus vinculatus, sp. nov. 



Pale testaceous, nearly uniform, the posterior margins of all the seg- 

 ments infuscated, the apices of the hind femoral geniculations touched 

 with fuscous, and the pronotum more or lei^s blotched with pale fus- 

 cous, particularly with a pair of short submedian stripes on the anterior 

 half. Antenna? slender and nearly three times as long as the body, 

 the legs short but not stout. Fore femora distinctly stouter than 

 the middle femora, but very little longer than the pronotum, less than 

 half as long as the hind femora, the inner carina with a preapical 

 spine. Middle femora with 1-4 spines on the inner carina, and on the 



