SCUDDER. NORTH AMERICAN CEUTHOPHILI. 81 



39. CEUTHOPHILUS AGASSIZII. 



Rhaphidophora agassizii Scudd.!, Proc. Bost. Soc. Nat. Hist., viii. 

 11 (1861). 



Ceuthophilus agassizii Scudd.!, Bost. Journ. Nat. Hist., vii. 439 

 (1862) ; Walk., Cat. Derm. Salt. Brit. Mus., i. 202 (1869) ; Brunn., 

 Monogr. Stenop., 65 (1888). 



Ceuthophilus zonarius Walk., Cat. Derm. Salt. Brit. Mus., i. 203 

 (1869). 



Body luteous, more or less infuscated in irregular patches which 

 especially form broad bands on the posterior margins of the segments 

 and leave the pronotum irregularly blotched, the fuscous portions 

 occupying the anterior and posterior and usually also the lateral mar- 

 gins, sometimes broken along the middle line, and running backward 

 from the anterior margins in a pair of large subdorsal stripes, the 

 fuscous portions often dotted with distinct luteous dots. The hind 

 femora are marked in the usual compound scalariform manner with 

 fuscous, which unites distally in two elongate patches on the lower half 

 of the outer surface. Antennae more than twice as long as the body, 

 not very slender. Legs moderately long. Fore femora distinctly 

 broader than the middle femora, a fifth longer than the pronotum, and 

 at least in the $ considerably less than half as Ion": as the hind 

 femora, the inner carina with a preapical spine, and at least in the $ 

 with 3 or 4 other unequal spines. Middle femora with 4-5 unequal 

 spines on the front carina besides a preapical spine, and on the hind 

 carina numerous unequal spines, especially in the male, besides a 

 rather long genicular spine. Hind femora as long as the body, stout, 

 the apical fifth subequal, about three times as long as broad, with 

 scattered raised points on the distal half, especially above, the outer 

 carina with a tolerably uniform series of very short spines or serra- 

 tions, the inner carina with similar but finer serrations. Hind tibiae 

 of the same length as the femora or (<J) scarcely longer, straight in 

 both sexes or feebly sinuate in old males, moderately stout, armed 

 beneath with 12 preapical spines besides the apical pair ; spurs sub- 

 opposite, about the length of the tibial depth, set at an angle of 35-40 

 with the tibia and divaricating about 80, their tips incurved ; inner 

 middle calcaria a little longer than the outer, fully half as long again 

 as the others or as the spurs, but much shorter than the first tarsal 

 joint. Hind tarsi about two fifths the length of the hind tibiae, the first 

 joint about as long as the rest together, the second twice as long as 

 the third and with it shorter than the fourth. Cerci tapering regu- 



VOL. xxx. (N. s. xxn.) 6 



