AMERICAN COLEOPTERA. 255 



62. C indistinctum n. sp. — Brown, oblong-elliptical, very nearly three- 

 fifths as wide as long, not gibbous in profile, moderately pubescent. Coarser 

 punctuation evident but not conspicuous. Metasternum punctate at middle, the 

 punctures virtually or quite lacking at sides. Eighth antennal joint quadrate- 

 triangular, a little longer than wide. Front tibiae bisulcate; middle tibiae not 

 sulcate. Length 1.7-2.3 mm. 



Hab. — Washington, D. C. (type) ; Piney Point, Maryland ; Ros- 

 lyn, Virginia; Detroit, Michigan; Punta Gorda, Florida. 



The Florida specimens are very slightly more strongly punctured 

 but do not seem otherwise separable. They resemble debile quite 

 closely, but this latter species has the middle tibiae sulcate and is 

 more finely sculptured. 



63. C exiguum a. sp. — Brown, elliptical, rather strongly convex and 

 almost two-thirds as wide as long, not gibbous in profile, pubescence moderate. 

 Coarser punctures fine and few on the head, evident but small near the side 

 margin of the pronotum, larger but sparse and not conspicuous on the elytra. 

 Metasternum punctate at middle, broadly smooth at sides. Eighth antennal 

 joint quadrate-triangular, a little longer than wide. Front tibiae bisulcate, the 

 grooves widely distant; middle tibia; not sulcate. Length 1.6-1.9 mm. 



Hab. — California (Pomona, Los Angeles, Poway) ; Lower Cali- 

 fornia (Santa Rosa). 



There is no other known species in the region in which this occurs 

 with which it can be confused. 



64. C. obsoletum Lee— Piceous brown, the head, thorax and abdomen 

 dark rufous or rufescent; oval, three-fifths as wide as long, the sides of the 

 elytra feebly divergent from the humeri to the middle, profile scarcely gibbous, 

 pubescence moderate. Coarser punctures nearly lacking on head and pronotum ; 

 elytra thickly punctulate, the coarser punctures rather small though evident. 

 Metasternum rather coarsely punctate at middle; sides broadly subimpunctate, 

 an elongate fovea close to the raised front margin and near the sides. Eighth 

 antennal joint quadrate-triangular, a little longer than wide. Front tibiae bisul- 

 cate; middle tibiae not sulcate. Length 2-2.5 mm. 



Hab. — Lower California (Cape Sau Lucas). 



The widening of the elytra posteriorly is an almost unique char- 

 acter, observed elsewhere only in latum. The latter is a wingless 

 littoral species, and it is not unlikely that obsoletum is like it in 

 these respects. We have no knowledge of the condition of capture, 

 and the species is still known only by the few original specimens 

 taken by Xantus. It is doubtless a significant fact that the nieta- 

 sternal fovea of obsoletum is also distinctly indicated in latum. 



TEANS. AM. ENT. SOC. XXXI. JULY, 1905. 



