Coleopterological Notices. 447 



could only be coafoundeci with ritfipes, from which it differs in its 

 much more shining surface, more oblong and less convex form, 

 greater size, much more feebly impressed elytral striae, and especi- 

 ally in its much sparser and less persistent, shorter, coarser and 

 paler elytral pubescence. The abdominal pubescence is nearly as 

 in riifipes, but is a little shorter. 



27 B. pillveruleutlis Mann. — Bull.'Mosc, 1843, II, p. 276. — Elongate- 

 oval, strongly convex, black thronghout, polished ; pubescence dark fusco- 

 cinereous iu color, ratlier long but sparse and inconspicuous. Head muck 

 wider than long, feebly convex, somewhat strongly and densely punctate, the 

 punctures sometimes a little sparser along the middle, not confluent ; upper 

 lobe of eyes moderate, rounded ; antenna rather robust, gradually and moder- 

 ately iucrassate through the last four joints, third scarcely twice as long as 

 the second but distinctly longer than the third, eleventh fully as long as wide, 

 narrowly truncate at apex, as wide as the tenth. Protliorax rather elongate, 

 scarcely more than one-half wider than long ; sides very feebly convergent 

 from base to apex, feebly arcuate, straight or extremely feebly sinuate toward 

 base, the latter transverse, the lateral sinuations distinct ; basal angles very 

 slightly obtuse, not in the least rounded ; apex feebly emarginate in circular 

 arc ; disk sometimes slightly flattened or subexplanate toward the basal angles, 

 somewhat coarsely and densely punctate, the punctures rather unevenly dis- 

 tributed but usually separated by nearly twice their diameters toward the 

 middle, denser but not distinctly coalescent toward the sides. Scutellum 

 small, ogival. Elt/tra about two and one-half times as long as the protliorax, 

 scarcely perceptibly wider than the latter, rather acutely parabolic at apex ; 

 sides parallel and rather distinctly arcuate ; disk with rather fine strise which 

 are somewhat distinctly and broadly impressed, not much more strongly so 

 externally but usually more distinctly so near the suture, the strire with fine 

 but deep punctures, generally separated by one-half more than their own 

 diameters ; intervals very feebly convex, somewhat coarsely and very sparsely 

 punctate. Abdomen finely, sparsely punctate, the pubescence distinct but 

 short and sparse, dark fusco-cinereous and not conspicuous. Legs moderate. 

 Male. — Anterior tarsi very strongly dilated, the third joint distinctly shorter 

 than the second and strongly, angularly emarginate ; intermediate rather 

 strongly dilated, the second joint notablj' wider than the first and a little 

 wider than the third ; both pairs densely spongiose beneath ; abdomen rather 

 narrowly and distinctly impressed in the middle toward base, the punctures 

 not distinctly denser in the middle of the basal segment, fifth segment with a 

 feeble oval impression ; body notably more slender than in the female. 



Length % 4.5-4.8 mm., 9 4.7-5.5 mm. ; width % 1.8-2.0 mm., 9 2.1-2.3 mm. 



California (Mendocino, San Francisco, and Monterey). 



This is the commonest species about San Francisco, and in fact 

 is the only one which exists in that locality to any great extent; 

 it is usually confounded in our cabinets with several other species 



