LeConte.] 



ANTHRIBIU^. 391 



as wide as long, not impressed or carinate; head convex, punctures becom- 

 ing finer and obsolete on the occiput. Prothorax one-third wider than long, 

 rounded on the sides, narrowed in fronS faintly impressed but not con- 

 stricl^ed on the sides, nearly truncate in front and at base; densely and 

 strongly punctured with a narrow dorsal line, \vhich is obsolete in some 

 s;3ecimens. Scutellum rounded behind, not depressed. Elytra wider tlian 

 the protliorax; basal margin rather acute, finely serrate; striae deeply im- 

 pressed, punctured; interspaces wider than the stria3, scabrous with trans- 

 verse rugosities, becoming asperate on tlie sides towards the tip; the 

 interspaces become more convex on the declivity, and the third and 

 ninth unite near the tip, and then join the first so that the second is a little 

 shortened. Beneath coarsely and sparsely punctured and pubescent, and 

 less opaque; legs lighter brown. Length 3.6 mm. ; .14 inch. 



Anticosti Island, Gulf of St. Lawrence, W. Couper; British Colum- 

 bia and Vancouver Island, G. R. Crotch. No sexual difference observed. 



Family X. ANTHRIBID^. 



Mentum large, deeply emarginate in front, closely connate, (except in the 

 group Hormisci,) with the gular peduncle, which is broad and short; 

 buccal fissures consequently narrow, only partially exposing the base of the 

 maxilhc; ligula large, corneous, narrowly emarginate at tip; palpi 3 jointed, 

 inserted at the sides of the lower face of the ligula, distant, slender, cylin- 

 drical, longer than in other Rhynchophora and flexible, as in normal Cole- 

 optera and in Bhinomacendce; last joint elongated, narrower at the tip. 



Maxilte visible in the narrow buccal fissures, with two narrow lobes, 

 usually rounded and ciliate at tip; palpi slender, 4 jointed, with the last 

 joint longer and narrower at the tip. 



Mandibles flattened on the upper surface, curved, pointed or emarginate 

 at tip. 



Antennae inserted usually under the sides of the front, rarely upon the 

 front. They are 11-jointed, slender and not geniculate; the first joint 

 is stouter, but scarcely longer than tlie second; joints 3-8 slender, pubes- 

 cent; 9-11 broader, more or less compressed, finely pubescent and sensitive. 

 The antennae of the (^ are sometimes mucli longer than the body. The 

 outer joints form a compact oval club in Hormiscus. 



Head prominent, not deflexed; beak broad, flat, sometimes so short as to 

 be indistinct; never cylindrical or sle^nder, and never separated from the 

 front by a transverse impression. Eyes moderate in size, not very finely 

 granulated, rounded, sometimes slightly emarginate in front. Labrum dis- 

 tinct, quadrate, fringed with liairs- Gular suture completely obliterated. 



Prothorax of varied form, usually trapezoidal and truncate in front; rarely 

 somewhat rounded over the head iChoragus); base truncate, with a trans- 

 verse, elevated line which is either aiatebasal (Tropiderini) or entirely 

 basal; this line is abruptly bent forwards at the sides, and forms a more or 

 less abbreviated side margin. 



