120 CURCULIONID.15. [LeConte. 



LOPHALOPHUS u. g. 



In this genus the beak is parallel, flat above, not as stout as in the other 

 genera, and the apical wings are not developed; the medial groove is re- 

 pliiced by a fine carina, and the lateral grooves are wanting ; the antenna! 

 grooves are short, oblique as usual, but becoming wide and obliterated be- 

 hind; the grooves on the under surface are obsolete. The antennte are as 

 in Alophus, but rather thicker; the second joint of the funiculus, as usual, 

 a little longer than the first. The eyes are scarcely ti'ansverse, but dis- 

 tinctly angulated below; the postocular lobes are obsolete, and the pro- 

 sternal transverse impression scarcely extends on the sides. The elytra and 

 head are finely punctured, and the former has distinct rows of larger punc- 

 tures; the prothorax is coarsely and densely punctured, not channeled, but 

 with a small, dorsal smooth space. Under surface pubescent. 



The only species known to me is 



L. inquinatus. Liophloeus inq. Mann., Bull. Mosc. 1852, 351. 



Alaska ; two specimens from Baron Chaudoir. Difters from Liophlmus 

 by the mandibles being without apical scar, by the maxillae not covered by 

 the mentum, and by the ungues being separate, not connate at base. 

 Length 5.5 mm.; .32 inch. 



L]3PIDOPHORUS Kirby. 



This genus is easily distinguished from the others of the sub-family by 

 the beak being a little broader at the tip, with feeble wings, somewhat as in 

 Alophxii; otherwise, it is cylindrical, and not carinate nor grooved; the an- 

 tennal grooves are broad and short, directed towards the eyes, which are 

 scared}' transverse, and distinctly angulated below. The scape of the an- 

 tenna? is longer than in the other genera, extending across the eyes; the first 

 joint of tlie funiculus is as long as the three following united; 2-7 equal in 

 length, gradually a little thicker; club oval, pointed. Prothorax not lobed 

 in front, only obsoletely impressed at the sides near the tip; rounded on 

 the sides in front, not narrowed behind, scarcely as wide as long. Elytra 

 elongate oval, humeri rounded: strioe well marked, interspaces flat. Front 

 and middle tibie slightly curved and mucronate at tip; the hind pair 

 scarcely mucronate, truncate at tip. 



1. L. linsaticollis Kirby, Faun. Bor. Am. iv. 201 ; Schon. Cure, vi, 

 2d, 256; Maun. Bull. Mosc. 1853, 243. 



Two specimens from Alaska, not very well preserved. The body is 

 densely clothed with scales and small bristles; the latter arranged in series 

 on the elytra. Length 4.5 mm.; .18 inch. 



This is perhaps Phytonoinu'i trioittatus Say, Cure. p. 12; ed. Lee. i, 273; 

 but the description is not very definite. 



Sub Family IIL ITHYCERIDJE. 



This sub-family is represented by a single species, and is well dis- 

 tinguished from all other Curculionidde by the following assemblage of 

 characters. 



