438 Materials for a Monograph 



hind-legs and of the ovipositor. It is, however, wholly of 

 a black color with a reddish tinge, especially about the 

 head, under-surface of body, hind femora, and ovipositor; 

 the spines of the legs are all reddish brown ; there are also 

 some traces of a reddish tinge upon the pronotum, which 

 thus exhibit obsolete vestiges of the peculiar markings of 

 the Ceuthophili hitherto mentioned ; the hind femora are 

 unusually slender though short ; the claws of all the feet 

 are twice as long as ordinarily, and the denticulations of 

 the inner valves of the ovipositor are very slender and 

 long ; the antennae are quite short ; the eyes are more 

 nearly circular and more globose than usual, and do not 

 hug the base of the antennae so closely. 



Length of body, .6 in.; of hind femora, .4 in.; of ovi- 

 positor, .27 ; of antennae, 1 in. 1 9 . 



Rock Island, Illinois, (Uhler.) 



9. C. CALIFORNIANUS, HOV. Sp. 



Fuscous, paler beneath and upon the front of the head ; 

 a narrow pale median line ; eyes black ; palpi pale ; 

 antennae light brown. The hind femora are short and 

 thick, and have no spines upon the under-surface ; the 

 claws of all the tarsi are quite long ; the ovipositor is re- 

 markably short, no longer than the cerci ; the denticula- 

 tions of the inner valves are rather prominent but dull. 



Length of body, .53 in. ; of hind femora, .22 in. ; of ovi- 

 positor, .09 in. 19. 



San Francisco, Cal. (Mus. Comp. Zool.) 



I have a species from Texas, apparently more closely 

 allied to this than to any other, though with an ovipositor 

 of ordinary length, but in too mutilated a condition for 

 description. 



10. C. STYGIUS. 



Raphidophora stygia, Scudd., Proc. Bost. Soc. Nat. Hist. ; 



VIII. 9. (1861.) 



Hickman's Cave, Kentucky, (Hyatt.) 



