SCUDDER. — NORTH AMERICAN CEUTHOPHILI. 37 



5. Ceuthophilus latebricola, sp. nov. 



Blackish fuscous, sometimes almost piceous, glabrous, profusely spot 

 ted with luteous or rufo-luteous and more or less blotched with the same 

 on the thoracic segments, though nowhere in large masses, but, except 

 the luteous bordering of the inferior margins, more as if through the 

 confluence of minute spots. There is always a narrow mediodorsal line 

 or stripe on the thoracic segments with slight expansions anteriorly and 

 posteriorly on the pronotum ; legs luteous with heavy blackish iufusca- 

 tions at the femoral tips, the hind femora heavily marked with fuscous 

 scalariform markings. The antennae are slender and about three 

 times as long as the body, and the legs moderately long and slender. 

 Fore femora no stouter than the middle femora, considerably less than 

 half as long as the hind femora, a little more (c?) or a little less (?) 

 than a third longer than the pronotum, the inner carina with a long 

 preapical spine and sometimes another much smaller. Middle femora 

 with 2-4 spines on the front carina and on the hind carina with 1-2 

 spines besides a long genicular spine. Hind femora about as long as 

 the body, considerably more than twice as long as the fore femora, 

 moderately stout, in the male somewhat strongly constricted before the 

 genicular lobes, about three and a quarter times longer than broad ($), 

 the surface with only a few raised points along the upper edge interi- 

 orly, the outer carina considerably elevated before the constriction, 

 armed with 6-9 unecpial teeth, the largest tumid at base and not so 

 long as the tibial spurs (^) or with 2-3 feeble serrations (9), the 

 inner carina with distant feeble minute spinules (9), the intervening 

 sulcus slender. Hind tibiae sinuate in the proximal half { ^) or straight 

 throughout (9), considerably longer than the femora (scarcely longer 

 in Eastern examples), armed beneath with a single subapical spine 

 besides the apical pair ; spurs subopposite, the basal just before the 

 end of the proximal third of the tibia, about half as long again as the 

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

 100°, their apical third incurved ; inner middle calcaria very much 

 longer than the outer, almost twice as long as the others or as the 

 spurs and nearly as long as the first joint of the tarsi. Hind tarsi 

 not a third as long as the tibiae, the first joint longer than the rest 

 together, the second fully twice as long as the third and with it at 

 least as long as the fourth. Cerci rather stout, rapidly tapering, 

 a little longer than half the femoral width. Abdomen roundly trun- 

 cate in the male. Ovipositor straight, two thirds as long as the hind 

 femora, gently tapering in basal third, beyond equal and slender, the 



