TRIBE VI. PHLCEOTRIBINI. 659 



finely, deeply, not densely punctate. Elytra with declivity finely tuber- 

 culate or serrate, more abrupt and flattened, striae impressed and scarcely 

 punctured; intervals wide, densely and strongly granulate and rugose, 

 the rugosities becoming acute tubercles on declivity of alternate intervals; 

 second interval not depressed on declivity and with a row of smaller tu- 

 bercles in some specimens. Tibiae acutely serrate, tarsi with joints 1 3 

 equal, the third bilobecl, fifth nearly equal to others united. Male with 

 first and third intervals elevated, the declivity with rows of rather prom- 

 inent tubercles. Female declivity with rows of granules in place of tu- 

 bercles. Length 2 3.5 mm. 



Chews Landing 1 , N. J., on cedar, entering in June ; West Point, 

 N. Y., May 23. District of Columbia under bark of juniper. 

 Utopia, Fla., March 4. Kansas, mining under green bark on logs, 

 stumps, tops of dying and injured red cedars and in their broken 

 branches, May 23 (Riley). Eastern and Middle United States, 

 Canada and New Mexico, on Junipcnts and Thuja. (Swainc.) 

 Excavates a single short, longitudinal egg gallery from the en- 

 trance burrow and basal chamber in the bark and surface of wood 

 of juniper and eastern arbor vitjp, the mines as a rule being ex- 

 tremely regular and the wood very prettily sculptured. P. scr- 

 ratus Lee. (1868, 170) is a synonym of den tat us. 



1066 (9172). PHLCKOSIMUS PUNCTATUS Lee., 1876, 381. 



Differs only in the wider, more strongly punctured striae, and narrower, 

 less densely granulated and rugose intervals, with the second depressed on 

 the declivity, shining, sparsely punctured and narrower than the adjacent 

 ones. Front finely but distinctly carinate. Male, front excavated, excava- 

 tion smooth at middle and anteriorly with a small tubercle. Tubercles on 

 elytral declivity more prominent, Female, front not excavated but with a 

 narrow median carina not reaching vertex; tubercles on elytral declivity 

 smaller. Length 2 mm. 



Occurs at Lake Superior and in Oregon (LcConte) ; Rocky 

 Mountain region on Liboccdrus decurrens and giant arbor vita?, 

 ChaimcBcyparis lawsoniana (Swaine) ; excavating a single 

 straight or curved subtransverse gallery from a basal chamber in 

 the living bark and surface of wood of giant arbor vita?, incense 

 cedar and Port Orford cedar. (Hopkins.) 



III. CHRAMESUS LeConte, 1868. (Gr., "rodent or gnawer.") 



This genus, confined to North and South America, is distin- 

 guished by its oval, convex body, covered with erect short bristles, 

 and remarkable antenna?, consisting of 5-jointed funicle and sin- 

 gle-jointed club, attached to the funicle on its side. (Fig 137, F.) 

 The club is compressed, pubescent and without trace of sutures 

 on either side. 



