AMERICAN COLEOPTKRA. 249 



Hab. — California (Fresno). Described from a single example in 

 the Hubbard and Schwarz collection. Closely related to triviale, 

 but the much larger size and denser pubescence are quite sufficient 

 to distinguish it. 



45. C boreale Lee. — Rather robust, a little gibbous in profile, moderately 

 pubescent; upper surface finely densely punctulate without trace of coarser 

 punctures on the head and pronotum, and with very few on the elytra, these 

 being sparse and indistinct. Metasternum very sparsely but obviously punctate 

 at sides. First joint of antennal club triangular, about twice as long as wide, the 

 outer edge very oblique. Length 2.3-3 mm. 



Hab. — Lake Superior (type) ; Michigan. (One example in my 

 own collection so referred.) 



The large size, very fine and dense punctulation with the virtual 

 absence of larger punctures, and the very elongate eighth antennal 

 joint easily mark this as an unusually distinct species. It is most 

 closely approached by densum, which is distinguished by the sulcate 

 middle tibiae and more transverse eighth and ninth joints of antennae. 



46. C pusillum Lee. — Brown, somewhat densely clothed with rather long 

 pale yellowish pubescence. Form robust, quite three-fifths as wide as long, not 

 distinctly narrowed behind, a little gibbous in profile; coarser punctuation fee- 

 ble on the head, but quite strong at the sides of the pronotum and on the elytra. 

 Metasternum sparsely, moderately strongly punctured at middle, the punctures 

 becoming finer laterally and scarcely reaching the sides. Eighth antennal joint 

 triangular, fully one-third longer than wide. Front tibiae bisulcate; middle 

 tibiae not sulcate. Length 2.-2.5 mm. 



Hab. — Arizona, Yuma (type), Camp Thomas; Lower California 

 (San Jose del Cabo). Some specimens are labellel Alameda Co., 

 California; I suspect erroneously. 



47. C consobriimm n. sp. — Dark piceous brown, a little less than three- 

 fifths as wide as long, slightly narrowed from the humeri, distinctly gibbous in 

 profile; pubescence fine and short. Coarser punctures of head numerous and 

 distinct ; a little, coarser and more conspicuous over a wide area at sides of pro- 

 notum ; fine but evident across the base of the elytra, becoming rapidly larger 

 at about the basal fourth, then increasing visibly in coarseness toward the apex. 

 Metasternum finely, very sparsely, nearly evenly punctate from side to side, the 

 surface polished and with scarcely visible finer punctuation. Front tibiae deeply 

 bisulcate almost throughout their length ; middle tibiae not sulcate. Length 2.2- 

 2 7 mm. 



Hab. — Arizona (Oracle, Tucson); New Mexico. 

 Closely related in most respects to abbreviatum and simile, which 

 see for a statement of differences. 



TRANS. AM. ENT. SOC. XXXI. (32) JULY. 1905. 



