360 CASEY 



at apex, the interstitial punctures fine but strong, sparse, generally 

 confused but forming irregular single series at some parts ; abdo- 

 men slightly alutaceous, smooth, minutely and sparsely punctate 

 mediall}'. Length 6.0 mm. ; width 2.5 mm. California (Hum- 

 boldt Co.) crassicornis Csy. 



Elytra more or less obviously shining 16 



16 — Form rather stout, oblong-oval, strongly convex, very feebly 

 alutaceous in lustre, deep black, the legs dark rufous; head rather 

 coarsely, irregularly and somewhat closely punctate, the frontal 

 margin verv feebly and broadlv angulate, the sides converging and 

 arcuate, the angles feebly marked ; antennae rather less stout than 

 in crassicornis ; prothorax but little more than one-half wider 

 than long, the sides subparallel, evenly and moderately arcuate, 

 but little moi'e converging anteriorly than posteriorly, the sinua- 

 tion at apex strong, the apical angles right but narrowly rounded, 

 the punctures not coarse but strong, well separated, becoming 

 gradually a little larger and closer but not crowded, though tend- 

 ing to longitudinal coalescence, laterally ; scutellum small, rounded 

 behind ; elytra slightly inflated, about two-fifths longer than wide, 

 between two and three times as long as the prothorax and evi- 

 dently, though slightly wider, the sides arcuate, rapidl}- rounding 

 to the obtusely ogival apex, the series unimpressed, subeven, with 

 not at all coarse, well separated but distinct punctures, the inter- 

 stitial punctures very fine, confused suturally, sometimes forming 

 uneven single series laterally ; abdomen polished, smooth, strongly 

 and not very sparsely punctate medially, coarsely "and subrugosely 

 so laterally. Length 6.0 mm.; width 2.45 mm. California 

 (Amedee, Lassen Co.), — H. F. Wickham sequicollis n. sp. 



Form narrower, elongate-oval, strongly convex, deep black, the legs 

 dark rufo-piceous, polished ; head not coarsely but very strongly 

 and closely punctured, the sides converging and strongly arcuate, 

 the apex broadly, very feebly angulato-arcuate, with the angles 

 rather evident though obtusely rounded ; prothorax two-thirds 

 wider than long, the sides subevenly and rather strongly arcuate, 

 slightly more converging anteriorly than posteriorly, the apex 

 deeply sinuate, the apical angles right but scarcely at all blunt, 

 the punctures not coarse but deeply perforate and moderately 

 close-set, with a short impunctate discal median line, toward the 

 sides only slightly larger or closer and still evidently separated ; 

 scutellum moderate, subquadrate, slightly transverse ; elytra not 

 quite one-half longer than wide, scarcely three times as long as 

 the prothorax and not evidently wider, the sides broadly, evenly 

 arcuate, gradually and obtusely ogival at apex, the serial punctures 

 moderately coarse laterally, not very close-set, the series very 

 feebly subimpressed suturally, the interstitial punctures very fine, 

 unevenly uniserial throughout; abdomen finely, sparsely punctate 

 medially, the elytral and abdominal punctures each with a very 

 minute silvery seta. Length 5.25 mm.; width 2.25 mm. Cali- 

 fornia (Truckee, Nevada Co.) vegrandis n. sp. 



