348 MEMOIRS ON THE COLEOPTERA 



with rather smaller squamae, which are not denser apically; 

 antenna! club rather more than halt as long as the stem; prothorax 

 similar but not quite so short and rather more prominently angu- 

 late at the sides, the punctures coarse, irregular and sparse, each 

 with a pointed scale, which is nearly three times as thick as in 

 the male, the dense white vittae similar; elytra nearly as in the 

 male, except that the squamules are shorter and notably broader; 

 pygidium nearly similar, without smooth line in one example and 

 with a broad glabrous line from near the base to the apex in the 

 other. Length 27.0-28.0 mm.; width 13.4 mm. Two specimens. 



Oregon (Corvallis), Moznette oregona n. subsp. 



C Male larger and more elongate than in oregona, narrower and 

 more cylindric than in ruficollis, black, the clypeus rufescent, the 

 pronotum outside of the lateral vittae, the reflexed bead of the 

 elytra, abdominal tip, legs and antennae, rufous; vestiture fine, 

 yellowish, the dense lines white; head broad, the vertex deeply, 

 not very closely, the clypeus less strongly, loosely punctate, the 

 former with numerous fine long erect hairs and some scales near 

 the eyes, the latter moderately concave, the apex transverse, 

 broadly, subangularly sinuate at the middle, the angles rounded, 

 the sides converging thence to the base, the vestiture composed 

 entirely of very fine hairs, smaller, denser and with some that are 

 narrowly squamiform laterally and apically; antennal club fully 

 four times as long as the stem; prothorax barely twice as wide as 

 long, obtusely and subangularly prominent submedially at the 

 sides, strongly but subevenly arcuate throughout viewed vertically, 

 the punctures coarse, irregular, close-set to sparse at various 

 points, but little smaller laterally, each with a rather long stout 

 inclined hair, not in the least squamiform, those near the middle 

 of the apex a little longer and more erect; vittae narrow, the lateral 

 broadly interrupted before the middle; scutellum broadly squa- 

 mose medially and elsewhere with a few scattered scales; elytra 

 large and long, one-half longer than wide, rapidly rounding in less 

 than apical third, the sides parallel, two-fifths wider than the 

 prothorax, which is relatively smaller than in oregona; vestiture 

 rather abundant, consisting of small stout decumbent hairs, not 

 at all squamiform and not quite spreading to the dense white 

 lines; pygidium as long as wide, the apical angle rather rounded, 

 the surface finely, strongly, densely punctate throughout, except 

 in a narrow glabrous unentire median line, densely clothed with fine, 

 brown hairs, becoming largely slender yellow squamules basally; 

 middle tarsi much shorter than the tibiae. A second male, is quite 

 different from the type in many respects; the elytra are rather less 

 elongate and the scattered vestiture is sparser and has the form 

 of narrow and gradually attenuate yellow scales; the pronotal 

 vestiture is nearly similar but on the clypeus there are many 

 rather large broad scales. Length and width of type specimen 

 30.0 by 13.5 mm.; length of elytra 22.0 mm.; length of elytra of 

 second example 20.0 mm., the total length 29.0 mm. Washington 

 State (Friday Harbor) perversa n. subsp. 



