COLEOPTERA OF BAJA CALIFORNIA. 257 



erately coarsely, deeply and closely punctate, with faintly 

 indicated median carina. Elytra wider at base than the 

 thorax, disc not depressed, strige with deep quadrate punc- 

 tures, intervals flat, the third and fifth finely carinate, 

 rather roughly punctate. Body beneath coarsely, closely 

 and equally punctate. Femora not toothed, tibige serrate. 

 Length, .18-.22 inch.; 4.5-5.5 mm. 



Allied in its vestiture to sei'ri^es, but in form to irrorata. 

 Is much less robust and with less coarsely toothed tibiae 

 than the first, and differs from the second in vestiture and 

 the absence of femoral tooth. 



Two specimens. Arizona, Sierra San Lazaro. 



CONOTRACHELUS LUCANUS n. Sp. 



Oblong oval, similar in form to naso, piceous, dull, elytra 

 marmorate with brownish and dirty white hairs, the latter 

 more evident at the sides and with four more conspicuous 

 white spots at the base of the third and sixth intervals. 

 Antennge rufescent, inserted less than a third from the tip 

 of the rostrum, which is rather deeply trisulcate on each 

 side, the sulci coarsely punctured, surface glabrous, a few 

 hairs near the base. Head densely punctate, with ful- 

 vous hairs. Thorax quadrate, a little wider than long, 

 abruptly constricted in front, sides feebly arcuate, disc 

 convex, very coarsely cribrate, with a median carina from 

 apex, not quite reaching the base, surface with sparse 

 erect hairs. Elytra more than half wider at base than 

 the thorax, humeri not acute, disc with striaj of quadrate 

 punctures not densely placed, the intervals 3-5-7-9 

 finely carinate, and with a row of short erect hairs. Body 

 beneath very coarsely and deeply punctate. Mesoster- 

 num protuberant. Femora unidentate, claws divergent 

 and acutely toothed. Length, .20 inch.; 5 mm. 



This species belongs to the group defined by Dr. 



2d See., Vol. V. ( 17 ] July 19, 1895. 



