SCUDDER. NORTH AMERICAN CEUTHOPHILI. 67 



Length of body, 20 mm. ; antennae, 25 X mm. ; pronotum, 6.5 mm. ; 

 fore femora, 8.25 mm. ; hind femora, 20.5 mm. ; hind tibiae, 22.3 mm. 

 1 (J. Chihuahua, Mexico. 



29. CEUTHOPHILUS NEGLECTUS, sp. nov. 



Ceuthophilus maculatus (pars), Scudd.!, Bost. Journ. Nat. Hist., vii. 

 434 (1862). 



Glabrous, castaneous, more or less, often deeply, infuscated especially 

 above, the infuscation often but not always terminating below the 

 middle of the sides, which are there sordid luteous ; a broad more or 

 less and often very obscure mediodorsal rufo-luteous stripe on the 

 pronotum, sometimes extended farther back but then generally broken ; 

 the sides of the pronotum and to a lesser extent the meso- and meta- 

 notum are more or less blotched or vermiculate with luteous, and the 

 abdomen is more or less but generally feebly maculate with luteous ; 

 the markings and the coloring vary greatly, so that it is difficult to for- 

 mulate any general statement; the female is apt to be darker than the 

 male, and specimens from New England are often almost uniformly 

 dark, even almost black, while the contrasts between the dorsum and 

 the lower portion of the sides are strongest in specimens from the 

 Middle Atlantic States, where they grow to a large size ; the legs are 

 generally luteo-castaneous, the tips of all the femora dark, sometimes 

 almost black, the hind femora with scalariform fuscous markings. 

 The antennas are not often infuscated and then generally more or less 

 or feebly annulate with luteous, slender and generally 23 times as 

 long as the body, the legs rather slender and moderately short. 

 Fore femora scarcely stouter than the middle femora, considerably less 

 than half as long as the hind femora and but very little longer than the 

 pronotum, the inner carina with a subapical spine, rarely accompa- 

 nied by another. Middle femora with 1-3 spines (largely depending 

 upon age) on the front carina, and on the hind carina 0-3 spines 

 besides a longer but short genicular spine. Hind femora two and a 

 quarter times longer than the fore femora, about as long as the body, 

 stout and tumid, the upper and lower margins almost equally arcuate, 

 scarcely more than the genicular portion subequal, almost three times 

 as long as broad, the inner surface with a very few raised points next 

 or at the upper margin beyond the middle, scarcely perceptible or 

 absent from the female, the outer carina minutely, closely, and pretty 

 uniformly serrulate through all but the basal third, sometimes almost 

 imperceptible in the female, the inner carina a feebler repetition of the 

 outer, the intervening sulcus moderate in width. Hind tibiae slender, 



