NORTH AMERICAN BOSTRICHIDAE 47 



Stephanopachys asperulus (Casey) 



Dinoderus asperulus Casey, 1898, N. Y. Ent. Soc. Jour. 6: 74. 



Stephanopachys asperulus Lesne, 1938, in Junk (pub.), Coleopt. Cat., pt. 161, p. 20. 



Reddish brown to brownish black, the palpi, antennae, and legs more 

 reddish. 



Head with front and clypeus coarsely, sparsely granulose, sparsely 

 clothed with rather long, semierect, yellowish hairs, the clypeus glab- 

 rous and smooth along anterior margin ; mentum subtruncate in front. 



Pronotum strongly convex, slightly gibbose in front of scutellum, 

 widest at middle; sides broadly rounded, coarsely tuberculate along 

 margins; surface sparsely clothed with short, inconspicuous, recum- 

 bent hairs on disk, the hairs longer and erect at sides, densely, coarsely 

 granulose, the granules on basal half strongly elevated, and distinctly 

 separated from one another, apical half with numerous broad, strongly 

 elevated teeth, which are longer, acute at apices, and separated at bases 

 from one another along anterior margin. 



Elytra at base subequal in width to pronotum at middle; surface 

 coarsely, densely, irregularly punctate, the punctures on disk as wide 

 as intervals, rather densely clothed at sides and on apical declivity with 

 long, erect, yellowish hairs, intervals on disk scabrous, without distinct 

 rows of elevated, beadlike granules, but with irregular shaped gran- 

 ules, each with a short, erect hair arising from its side ; apical declivity 

 distinctly, rather coarsely, irregularly granulose. 



Abdomen beneath coarsely, sparsely, shallowly punctate, sparsely 

 clothed with rather short, recumbent, yellowish hairs. 



Length 3-5 mm., width 1-1.75 mm. 



Type locality. — Fort Wingate, N. Mex. Type in the Casey Collec- 

 tion in the United States National Museum. 



Distribution. — From material examined : 



Aeizona: Flagstaff, July (H. F. Wickham) (J. L. Webb). Chiricahua Moun- 

 tains, June 8-14 (Hubbard and Schwarz) ; August 6 (J. L. Webb). Santa 

 Catalina Mountains (J. L. Webb). Williams, May 29-June 6 (Barber and 

 Schwarz). 



New Mexico: Gallup (H. F. Wickham). Fort Wingate, type (Dr. Shufeldt). 



Hosts. — J. L. AVebb collected this species on Pimis ponderosa and P. 

 strobijormis in Arizona. 



Casey described this species from a unique specimen. The type, like 

 most specimens in this genus, has the punctures filled with foreign 

 matter, and therefore the surface appears to be subopaque, but the 

 tops of the granules are clean and highly polished. 



Stephanopachys sobrinus (Casey) 



Dinoderus sobrinus Casey, 1898, N. Y. Ent. Soc. Jour. 6: 74. 



Stephanopachys sobrinus Lesne, 1938, in Junk (pub.), Coleopt. Cat, pt. 161, p. 21. 



Uniformly brownish black, rarely reddish brown, the palpi, anten- 

 nae, and legs more reddish brown. 



Head with front and clypeus finely, rather densely, shallowly punc- 

 tate, finely, densely granulose, sparsely clothed with long, erect hairs, 

 the clypeus smooth and glabrous along anterior margin ; mentum sub- 

 truncate in front. 



Pronotum strongly convex, slightly gibbose in front of scutellum, 

 widest at basal third; sides broadly rounded posteriorly, arcuately 



