96 AMERICAN COLEOPTERA. 



B. zephyrum n. sp. 



Form broad, subdepressed, viridiaeneous, prothorax at middle, elytra 

 with a basal spot occupying intervals 3-5, and a broad central stripe 

 dilated at middle and enclosing the quadrate impressions, blackish 

 purple ; surface alutaceo-granulose, the dark areas more finely so 

 and less dull. Antennas and palpi entirely dark metallic. Prothorax 

 slightly more than two-thirds as long as wide, base but little wider than 

 the apex, sides more widely margined and not deeply sinuate behind, 

 the angles nearly right ; surface slightly wrinkled transversely on the 

 disk, longitudinally at base; median line nearly entire; base angles 

 with a very feeble oblique carina. Elytra one-half wider than the pro- 

 thorax, the striae finely punctate, the fourth not or but slightly sinuate. 

 Body beneath greenish ; legs pale at base. Length, 5.25-6 mm. ; 

 width, 2.4-2.6 mm. 



The series' before me includes specimens from Humboldt 

 County, California (type), collected by Van Dyke, and from 

 Newport, Oregon, collected by Wickham. 



This species approaches carinula in its strongly transverse 

 prothorax, but differs from it and from all our other species 

 of this group in having the side margin of the thorax slightly 

 wider and subexplanate anteriorly. 



B. wliitneyi n. sp. 



Rather broad, moderately convex, black, elytra each with a sub- 

 triangular subhumeral spot, and a transverse lunate subapical spot, 

 pale, surface scarcely aeneous, strongly shining, either polished through- 

 out or with the elytra barely detectably alutaceous. Head as wide as 

 the thorax at apex ; palpi and antennae black, the latter one-half the 

 length of the body. Prothorax barely one-third wider than long, base 

 and apex subequal, sides distinctly sinuate behind, the angles rect- 

 angular ; basal impressions wrinkled and punctate, the inner stria deep, 

 the outer feeble ; hind angles carinate. Elytra one-half wider than 

 the prothorax and nearly three and one-half times as long, sides par- 

 allel in basal two-thirds, humeri rounded, striae very fine, not im- 

 pressed, the outer ones feeble or obsolete, the discal one traceable to 

 apex ; third stria with two setigerous punctures situated nearly at the 

 basal and apical thirds. Body beneath and legs black and shining. 

 Length, 4.75-5.2 mm. ; width, 1.8-2.2 mm. 



Mt. Whitney, California— 8,000 to 11,000 feet. Collected 

 and given me by Mr. F. S. Daggett. 



The pale elytral spots are quite bright in the type, but 

 more obscure in two other examples. Whitney i is allied 

 most nearly to breve, which is a smaller entirely black species, 

 the prothorax more transverse and with the hind angles 

 obtuse. It was also taken by Mr. Daggett on Mt. Whitney. 



