90 PROCEEDINGS OF THE AMERICAN ACADEMY. 



9 3.75 mm.; fore femora, ^ 4.25 mm., ? 4.1 mm.; hind femora, 

 (^ 9 9.5 mm. ; hiud tibia?, ^ 9 10.5 mm. ; ovipositor, 6.75 mm. 



1 (J, 1 9 . West Point, Nebr., L. Bruner ; Ellis, Kansas, Watson 

 (Mus. Comp. Zool.). 



47. Ceuthophilus pallidus. 



Ceuthophilus pallidus Thorn.!, Ann. Rep. U. S. Geol. Geogr. Surv. 

 Ten-., V. 434 (1872); Id., Proc. Dav. Acad. Nat. Sc, i. 264 (1876); 

 Glov., 111. N. A. Ent., Orth., pi. 18, fig. 18 (1874) ; Towns., Can. Ent., 

 xxiv. 197-198 (1892) ; [Ril.], Ins. Life, i. 282-283 (1893); Towns., 

 Ins. Life, vi. 58 (1893). 



Body bright luteous, heavily marked with blackish fuscous ; on the 

 pronotum the markings are very irregular, but consist in the main of 

 the following: ,on either side of the front margin a large transverse 

 fuscous spot, which reaches neither the mediodorsal line nor the lateral 

 margin and is interrupted below by a roundish spot and above by the 

 incursion from the anterior margin of a short narrowing dash ; in 

 the middle of the dorsum a quadrate spot divided by a mediodorsal 

 luteous line into a pair of longitudinal bars, each connected anteriorly 

 with the before mentioned anterior spot, and leaving a luteous sub- 

 marginal anterior mediodorsal spot ; an infero-posterior black spot not 

 touchinjr the margin ; and a laterodorsal subtriangular spot on the 

 posterior margin ; on the succeeding thoracic segments, and on the 

 abdominal there is a series of large irregularly triangular laterodorsal 

 spots on the posterior margins, and another lateral series of roundish 

 or transverse spots generally not reaching any margin ; the legs are 

 luteous, the fore and middle femora more or less infuscated in longi- 

 tudinal streaks, the hind femora dull luteous with scalariform fuscous 

 markings. Antennge moderately slender, about twice the length of 

 the body, the legs moderately long. Fore femora scarcely stouter 

 than the middle femora, less than a fifth longer than the pronotum, 

 much less than half as long as the hind femora, the inner carina with 

 a tolerably long subapical spine sometimes accompanied by another 

 minute one. Middle femora with a long subapical spine on the front 

 carina, accompanied at least in the male by a couple of others smaller, 

 and on the hind carina one or two short spines at least in the male, 

 accompanied by a long genicular spine. Hind femora moderately 

 slender, fully three times as long as broad, two and a third times 

 longer than the fore femora, the surface with a few scattered raised 

 points on tlie distal half and especially along the upj^er edge of the 

 inner surface, the outer carina with 6-8 very unequal and inequidistant 



