i!8 CURCULIONID^S. 



[LeConte. 



^cabrous punctured. The general aspect is that of certain Hylobius. The 

 last ventral segment in both sexes is broadly channeled, and with a shallow 

 impression each side; faint traces o similar impressions may be seen in 

 Triglyphus. 



The only species known to me is 



P. tseniatus Lee., Pac. Rw. Expl. and Surv. Insects, 55, (Hylobius?) 

 Brownish black, thinly clothed with fine brown pubescence, opaque, 

 densely scabrous punctured; thorax granose at the sides, feebly channeled, 

 Qlytra with rows of deep oblong punctures, scutellum, two small spots on 

 the fifth interspace, and a small sub-humeral spot pale yellow. Length 

 18 mm. ; .55 inch. 



Oregon and Vancouver Island. 



i 



ACM-aSO-ENIUS n. g. 



The beak is rather shorter and stouter than in the preceding genera, 

 flat above, with a medial channel; the lateral grooves are represented by a 

 short impression, and immediately below is a shorter one, the two together 

 occupying the triangular space in front of the eyes; the antennal grooves 

 are very strong and deep, the apical wings moderate; the tip is emarginate 

 but the angulated line is replaced by a broad curved impression. The 

 antennae are stouter, first and second joints of the funiculus equal, each 

 nearly twice as long as the following, which are equal and about as long 

 as wide, with long bristles, seventh wider, club oval pointed. 



Prothorax wider than long, narrowed in front but not behind, very 

 densely punctured not granose, impressed beneath as usual ; postocular 

 lobes feeble. Elytra not much wider than the prothorax, elongate oval, 

 strongly declivous behind, humeri not distinct; densely punctured, thinly 

 clothed with mixed scales and hairs, with rows of deep oblong punctures. 



Legs as in the preceding genera, except that all the tibiae are more 

 expanded at the tip, and the tarsi, instead of being brush-like beneath, are 

 concave and thinly clothed with long bristles. 



A. hylobinus, n. sp. 



Dull black, with a brown tinge, produced by thinly dispersed hairs and 

 small scales; head and prothorax very densely coarsely punctured, elytra 

 more finely punctured, with rows of large oblong punctures: beneath, and 

 legs densely punctured. Length 11 mm.; .43 inch. 



Oregon, two specimens; the last ventral is obsoletely impressed along 

 the median line. 



TRICHALOPHUS n. g. 



This genus contains several species resembling the European Alophus, 

 but of larger size, with the rows of elytral punctures almost or quite oblit- 

 erated ; the upper surface is clothed with hairs, not at all squamose, 

 and becoming so only on the sides of the sternal pieces; there is one lateral 

 groove on the beak, and the medial groove is stronger than in Alophus; 



