54 PROCEEDINGS OP THE AMERICAN ACADEMY. 



in both sexes, slender, armed beneath with a single subapical spine 

 besides the apical pair ; spurs almost opposite, the basal rather beyond 

 the end of the proximal third of the tibia, scarcely longer ((^) or a little 

 longer (?) than the tibial depth, set at an angle of about 45° with the 

 tibia and divaricating 70-90°, their tips incurved; inner middle 

 calcaria distinctly longer than the outer, twice as long as the others 

 or as the spurs, but distinctly shorter than the first tarsal joint. 

 Hind tarsi nearly half as long as the tibite, the first joint fully (<?) or 

 nearly (9) as long as the rest taken together, the second more than 

 twice as long as the third and nearly as long as the fourth. Cerci 

 rather stout tapering from before the middle, shorter than the femoral 

 breadth. Ovipositor nearly twice as long as the fore femora and not 

 very much shorter than the hind tibite, beyond the extreme very 

 slightly swollen base slender and subequal but gently tapering, slightly 

 arcuate in the distal half, the extreme tip produced to a very fine 

 scarcely upturned point, the armature including the apical members 

 consisting of sharp minute reversed serrations hardly apparent until 

 mature. 



Length of body, $ 10.7 mm., 9 16 mm.; pronotum, ^ 3.25 mm,, 

 9 4.1 mm. ; fore femora, ^ 5 mm., 9 4.9 mm. ; hind femora, 

 ^ 10.2 mm., 9 11 mm. ; hind tibite, ^ 10.5 mm., 9 H mm.; oviposi- 

 tor. 9.4 mm. 



5 (^, 9 9. Plains of Northern New Mexico, eastern slope, October 

 14 ; Beaver Brook, Col., 6,000', July 11, S. H. Scudder ; Empire City, 

 Col., E. Palmer. It has also been reported from Southern Colorado, 

 Manitou and Idaho, Col. (Scuddei'), Western Nebraska, and Topeka 

 and Berks Co., Kans. (Bruner). 



19. Ceuthophilus herds, sp. nov. 



Body castaneous, so heavily marked with black or blackish fuscous 

 as to appear rather as black marked with castaneous ; the latter 

 appears on the pronotum only in a very broad mediodorsal stripe of 

 unequal width, an impure blotch in the middle of the sides usually 

 connected with the former, and an inferior edging sometimes expand- 

 ing anteriorly ; in younger specimens, however, it extends over nearly 

 all the surface ; on the meso- and metanotum it margins the segments 

 anteriorly except below, separated from the black irregularly, and 

 extends mediodorsally across the segments ; on the abdomen it appears 

 as small spots dotting the surface and merging along the anterior mar- 

 gins ; the antennae are pale fuscous obscurely and distantly annulated 

 with luteous; the legs are castaneous, more or less infuscated, the 



