SCUDDER. NORTH AMERICAN CEUTHOPHILI. 79 



uniformly and rather finely serrulate, more finely in the 9 than in the 

 <, the inner carina with similar but finer and less frequent serrulations 

 or spinules, the intervening sulcus narrow. Hind tibiae as long as 

 the femora, straight in both sexes, armed beneath with two distant 

 median spines besides the apical pair; spurs opposite for the most part, 

 the basal at the end of the proximal third of the tibia, no longer than 

 the tibial depth, set at an angle of 45 to the tibia, and divaricating 

 about 60, their tips incurved ; inner middle calcaria of about the same 

 length as the outer, less than twice as long as the others or as the 

 spurs, and fully two thirds as long as the first tarsal joint. Hind tarsi 

 almost half as long as the tibiaB, the first joint distinctly shorter than 

 the rest together, the second twice as long as the third, and with it as 

 long as the fourth. Cerci stout on the basal half, tapering beyond, 

 shorter than the femoral breadth. Ovipositor stout at extreme base, 

 suddenly narrowing to a slender almost straight blade, nearly two 

 thirds as long as the hind tibias, the teeth of the inner blades aculeate, 

 arcuate, and long. 



Length of body, g 13 mm., 9 12.5 mm.; pronotum, $ 3.9 mm., 

 9 3.4 mm. ; fore femora, $ 4.4 mm., 9 3.8 mm. ; hind femora and 

 tibia;, each, $ 9 mm., 9 7.6 mm. ; ovipositor, 4.85 mm. 



2 <J, 2 9. South Park, Colorado, 8-10,000', Aug. 11-16, S. H. 

 Scudder; Mt. Lincoln, Colorado, 11-13,000', above timber, Aug. 13, 

 S. H. Scudder. 



38. CEDTHOPHILUS BRDNERI, sp. nov. 



Ceuthophilus divergens Osb., Proc. Iowa Acad. Sc., i, ii. 119 (1892) ; 

 Brun.! (pars), Publ. Nebr. Acad. Sc., iii. 32 (1893). 



Obscure brownish fuscous, with luteous markings which are very 

 dull and inconspicuous except in the bordering of the inferior margins 

 of the thoracic segments ; they are mostly found in large blotches of 

 very irregular form on the sides of the pronotum and in smaller lateral 

 and dorsal anterior spots on the other segments, sometimes confluent 

 and the lateral often crossing the abdominal segments ; there is some- 

 times an interrupted mediodorsal thread ; legs luteous, much infuscated 

 especially on either side of the femoro-tibial articulation, the hind 

 femora very broadly marked with blackish fuscous in a scalariform 

 pattern. The antennne are slender and about three times as long as 

 the body, and the legs slender but not very long. Fore femora no 

 stouter than the middle pair, much less than half as long as the hind 

 femora and only about a sixth longer than the pronotum, the inner 

 carina with a long preapical spine sometimes accompanied by a shorter 



