344 MEMOIRS ON THE COLEOPTERA 



three-fifths as long as the tibiae, the pygidium more transverse than 

 usual, subglabrous apically, the small broad scales closer but still 

 well separated basally and with a broad glabrous median line, 

 closed basally and slightly concave near the base. Body black, 

 the prothorax rufous, the legs ferruginous; head short and broad, 

 the punctures rather smaller than usual and larger and smaller are 

 intermingled; vestiture largely removed in the type but densely 

 squamose toward the eyes and sparsely squamose on the short 

 truncate clypeus; antennal club as in the preceding; last palpal joint 

 smaller; prothorax a little more than twice as wide as long, broadly 

 angulate at the sides behind the middle, coarsely, sparsely punctate 

 throughout, each puncture with a rather small scale, larger along the 

 base and in the dense white vittae, the medial of which is impressed, 

 the sublateral represented only by a large area behind the middle 

 and not attaining the base; scutellum densely squamose, broadly 

 glabrous laterally; elytra oblong, more broadly and obtusely rounded 

 behind in apical third, two-fifths wider than the prothorax, the 

 surface rather strongly rugulose, finely, somewhat sparsely punctate 

 and with broad yellowish-white scales, not extending quite to the 

 rather narrow dense white lines, the scales but little over twice as 

 long as wide; apex of the abdomen rufous. Male unknown. Length 

 25.0 mm.; width 12.8 mm. California (without further record). 



pacifica Csy. 



Female with the hind tarsi slightly less abbreviated, two-thirds to three- 

 fourths as long as the tibiae; pygidium densely clothed virtually 

 throughout in both sexes; elytra! scales variable within the species 

 but never so broad as in the two preceding 28 



28 Body smaller in size and with moderate and truncate clypeus. 

 Form subcylindric, black to dark.castaneous, the scattered squamules 

 yellowish, the dense vittae white; head moderate, the vertex strongly 

 punctate, with some short erect hairs and scattered lanceolate 

 scales, the latter dense toward the eyes as usual; clypeus with long 

 attenuate yellow scales, close-set basally, very dense apically, the 

 angles right and rather blunt, the sides subparallel; antennae pale, 

 the club between three and four times as long as the stem; last palpal 

 joint rather long and slender, narrower than the preceding; prothorax 

 twice as wide as long, rather broadly and only feebly prominent at 

 the sides submedially, strongly and rather closely but irregularly punc- 

 tate, the punctures bearing long and gradually very attenuate yellow 

 scales, sometimes broader and occasionally very narrow or hair-like 

 throughout, always closer basally, the white vittae narrow, the sublat- 

 eral interrupted near the apex; scutellum densely squamose, with more 

 or less broad glabrous margins; elytra nearly one-half longer than 

 wide, a fourth wider than the prothorax, the surface of the intervals 

 feebly rugose and with slender and rather close-set yellow squamules, 

 the surface becoming smoother, somewhat embossed as a rule and 

 glabrous near the narrow dense white lines; pygidium but little 

 wider than long, equilatero-triangular, moderately convex, densely 

 clothed with small and very sharply attenuate whitish scales; ab- 

 domen more or less rufous apically, the scales sparse, becoming 



