618 FAMILY IV. SCOLYTIDJE. 



with fine, silky hairs. Elytra with approximate, ill-defined rows of feeble 

 punctures; declivity flattened in male, with a few small, acute granules; 

 concave in female, with three or four prominent tubercles on the obtusely 

 elevated margin. Tibiae finely serrate below, coarsely so above, rounded 

 at tip. Funicle of antenna? stout, closely connected with club. Length 

 2 mm. 



Described from Pennsylvania. Known also from Maryland 

 and District of Columbia. Swaine, following Hnbbard and 

 Blandford, treats jrtanicollis as a synonym of fnscatus Eich., and 

 gives the combined distribution as Xew Jersey to Texas, Guate- 

 mala and Columbia, and the food plants as Quercus, Hicoria, 

 Castanca, Jughnis and Phius (wine and vinegar casks). Hop- 

 kins considers planicollis as distinct, citing only the type locality, 

 "Pa." The figure of fuscalus male in Bull. 7, "Ambrosia Beetles 

 of the U. S.," actually represents this species. 



986 (- -). XYLEBORUS INERMIS Eich., 1867, 401. 



Elongate, cylindrical. Ferruginous-testaceous, shining, sparsely pub- 

 escent. Thorax oblong, disc subimpressed on each side, punctulate behind. 

 Elytra faintly uniseriately punctulate with broad interspaces, uniseriately 

 punctulate; apex declivous, depressed, flat, almost smooth, opaque, feebly 

 armed, faintly impressed at suture. Length 2.4 2.6 mm. (Eichhoff.) 

 Male, 1.8 mm. long, oblong-elliptical, light yellowish-brown. Pronotum 

 with sides parallel, anterior area broadly impressed, with anterior margin 

 scarcely produced with obtuse subapical tubercles, rugosities fine, ex- 

 tending to median broad elevation, posterior and lateral area shining, 

 faintly punctured. Front convex, subopaque, with anterior median shin- 

 ing space. Elytra with sides parallel to vertex, basal and lateral areas 

 shining, feebly punctured, declivity oblique, opaque, subconvex, striae 

 with faint shining discs, interspaces 1, 3 and 4 with a few granules, pub- 

 escence moderately long; head moderately large. (Hopkins.) 



Eichhoff s types were from Tennessee and Cuba. Known also 

 from Monongalia Co., W. Va., in Cnstanea dentata ; July. 

 Maurer, N. J., May. Delaware Co., Pa., March, in chestnut. 

 (Wenzel.) 



987 (- -). XYLEBORITS AFFINIS Eich., 1867, 401. 



Subelongate. Brownish-testaceous, shining, with long gray pubes- 

 cence. Thorax oblong, disc to middle with obtuse tubercles, almost 

 smooth behind. Elytra cylindrical, very faintly irregularly punctate in 

 rows, sutural stria not impressed; apex obliquely declivous, subdepressed, 

 opaque, first and third interspaces with two remote tubercles, second un- 

 armed, subimpressed. Length 2.4 2.7 mm. Male, thorax excavated in 

 front, apex almost horned at middle; female, thorax cylindrical, convex, 

 apex rounded, entire. (Eichhoff.) Male, 2.25 mm. long, oblong-elliptical, 

 light brown. Pronotum broad, anterior area broadly impressed, apex 

 slightly produced 'into an obtuse tubercle, rugosities evident on anterior 



