NO. 2130. NORTH AMERICA RHAPHIDOPHORINAE—CAUDELL. 



667 



CEUTHOPHILUS PALMER! Scudder. 



This is very likely a composite species, as there is great diversity 

 of size among the type material and the length of the ovipositor 

 ranges from scarcely longer than the pronotum to more than twice 

 as long. 



CEUTHOPHILUS TERRESTRIS Scudder. 



This species is separable from most if not all of its allies by having 

 the subgenital plate of the male undivided and without styles. This 

 pecuUarity is exhibited in a single authentic male specimen in the 

 United States National Museum, and Mr. Rehn called my attention 

 to the same thing in specimens in the collection of the Academy of 

 Natural Sciences in Philadelphia. 



CEUTHOPHILUS UHLERI Scudder. 



This species has a distinctly conical vertex, approaching the 

 Pristoceuthophilus type. 



CEUTHOPHILUS SECLUSUS Scudder. 



The vertex of this species is also distinctly tubercular, but scarcely 

 so declivitous and horrdike as in Pristoceuthophilus. 



CEUTHOPHILUS NODULOSUS Brunner. 



This is a remarkable species by reason of the brevity of the dorsal 

 spurs and apical calcaria of the posterior tibiae of both sexes and the 



^^^ 



Fig. 9.— CEUTHOPHILUS nodulosus. Hind leg of male type. 



structure of the last dorsal abdominal segment and cerci of the 

 male. Here the cerci are apically much expanded and inwardly 

 deeply concave, the last dorsal segment is prolonged and shaped in 

 an unusual maimer and the subgenital plate is undivided, narrowed 



