TRIBE I. HEXACOLINI. 585 



KKY TO GENERA OF SOOLYTIN.E. 



a. Anterior tibiae with small tooth on inner apical angle extending 

 beyond the tarsal insertion; tibiae with at least one tooth on outer 

 margin, in addition to the apical one. 

 I. Pronotuni with transverse rugosities on anterior area. 



I. ERINEOPHILUS. 

 bb. Pronotum without transverse rugosities on anterior area. 



c. Thorax with a defined side margin. II. BOTHROSTERNUS. 



cc. Thorax with no defined side margin but usually a fold above the 



femoral impression. 



d. Sutures of club curved; beak narrower than the front; body 



oval. III. PAGIOCERUS. 



dd. Sutures of club straight; beak scarcely narrower than the front; 



body oblong. IV. CNESINUS. 



aa. Anterior tibia? with small tooth on inner apical angle not extending 



beyond the tarsal insertion. 



e. Abdominal sternum convex throughout; antennal scape not very 



short. V. LOGANIUS. 



ee. Abdominal sternum not convex throughout, but curved upward to 



apex; antennal scape very short. (Fig. 136, C.) VI. SCOLYTUS. 



Tribe I. HEXACOLINI. 

 I. ERINEOPHILUS Hopkins, 1902. (Gr., "bast" -+- "loving.") 



904 ( ). ERINEOPHILUS SCHWARZI Hopkins, Proc. Ent. Soc. Wash., V, 

 1902. 34. 



Female, yellowish-red; posterior portion of prothorax to abdomen, 

 darker; head and ventral surface dark; legs and antenna? yellow. Head 

 with front convex, middle of convex surface polished, shining, densely 

 fringed with long yellow hairs, which extend around the anterior margin 

 almost concealing the epistoma and mandibles. Base of prothorax emar- 

 ginate. Posterior portion of pro-episternum shining. Elytra shining, 

 margined at base, surface glabrous except on sides, which are faintly and 

 sparsely pubescent; stria? punctured but not impressed; interspaces not 

 elevated and with median row of punctures slightly smaller than those 

 of stria?; declivity not steep, smooth, punctures fine, apical margin slightly 

 retuse, exposing the pygidium. Ventral segments 1 and 2 distinctly punc- 

 tured. Length 1.7 mm. Male, front convex, smooth, subopaque, faintly 

 punctured and with faint median line; epistoma clothed with long hairs, 

 extending over base of mandibles. Length 1.5 mm. 



Cocoannt Grove, Fla., April and September; bores under the 

 bark of branches of the Banyan trees (Ficus), thus killing them. 



Tribe II. BOTHROSTERNINI. 



II. BOTHROSTERNUS Eichhoff, 1868. 

 (Gr., "perforation" -f "breast.") 



905 (11,251). BOTHROSTERNUS HUBBARDI Schwarz, 1886, 54. 

 Oblong-ovate. Reddish-brown, shining, nearly glabrous above. Vertex 



punctulate, front smooth with a longitudinal excavation and a tubercle 



