SCUDDER. — NORTH AMERICAN CEUTHOPHILI. 49 



mm.; fore femora, <? 4 mm., 9 4.25 mm.; hind femora, <J 9 mm., 

 9 10 mm. ; hind tibiaj, (J 9.5 mm., 9 10.75 mm. ; ovipositor, 6 mm. 

 3(^,59. Behrens, Shaster County, Cal., San Francisco, Cal., 

 Los Angeles, Cal., Cociuillett, all from L. Bruner ; and Siskiyou, 

 Placer, and Los Angeles Counties, Cal., mostly from Riley's collection 

 (U. S. Nat. Mus.). 



15. Ceuthophilus brevipes. 



Ceuthophilus brevipes Scudd. !, Bost. Journ. Nat. Hist., vii. 434 

 (1862); Walk., Cat. Derm. Salt. Brit. Mus., i. 201 (1869); Prov., 

 Nat. Canad., viii. 75 (1876); Fern., Orth. N. Engl., 19 (1888); 

 Blatchl.!, Proc. Ind. Acad. Sc, 1892, 148 (1894). 



Dull fuliginous brown, but glabrous, marked with very dull and pale 

 luteous dots, occasionally somewhat confluent ; there is sometimes, but 

 rarely, a mediodorsal luteous stripe on the pronotum ; the dots are 

 generally a little elongate and margin the segments posteriorly, often 

 turned obliquely inward and when accompanied by other dots in 

 advance these arranged to give an added obliquity to their general 

 course ; the pronotum is more or less marmorate with dull luteous ; 

 the legs have the general tone of the body and the hind femora the 

 usual markings of the genus, the darker colors generally the more 

 extensive, but the pattern obscured apically so that the distal exti-emity 

 of the femora, including more than the geniculation, is more or less 

 deeply iufuscated. The antennae are stout at base but immediately 

 become slender and are at least twice as long as the body. The legs 

 are short and rather slender. Fore femora no stouter than the middle 

 femora, a third longer than the pronotum and about half as long as 

 the hind femora, the inner carina with a subapical spine. Middle 

 femora with a subapical spine on the front carina and on the hind 

 carina 1-2 spines, sometimes wanting in the 9, besides a fairly long 

 genicular spine. Hind femora moderately stout and plump, regularly 

 tapering, about three and a half times longer than broad, the distal 

 fifth equal, the surface with no raised points, both carinte sparsely and 

 finely serrate in the $, almost unarmed in the 9> the intervening 

 sulcus of moderate breadth and V-shaped. Hind tibiae considerably 

 longer than the femora, unusually slender, straight in both sexes, 

 armed beneath with two preapical spines besides the apical pair ; 

 spurs subopposite, the basal at the end of the proximal fourth of the 

 tibia, nearly half as long agani as the tibial depth, set at an angle of 

 40-45° with the tibia and divaricating about 135°, their tips incurved ; 

 inner middle calcaria considerably longer than the outer, nearly twice 



VOL. XXX. (n. S. XXII.) 4 



