THYCE AND POLYPHYLLA 333 



whitish scales; erect hairs rather short, except apically, sparse and 

 rather inconspicuous; scutellum very densely squamose along the 

 middle, but elsewhere with only very few widely scattered scales; 

 elytra a third longer than wide, somewhat inflated behind the middle 

 and nearly a third wider than the prothorax, very feebly rugulose, 

 inconspicuously punctate, each with the suture, three discal subeven 

 lines and a short one behind the humeral umbo, densely albido- 

 squamose; intervals with rather close-set yellowish scales, leaving a 

 vacant interval adjoining the dense lines moderately well defined; 

 pygidium with small, very dense, suberect scales and short erect hairs, 

 all gradually sparse toward the sides, without trace of a glabrous 

 line; middle and hind tarsi subequal, the former evidently, the latter 

 much, shorter than the respective tibiae. Length 24.0 mm.; width 

 10.8-11.5 mm. Oregon (Graham), Moznette. Two examples. 



modulata n. sp. 



Elytral vestiture small, fine and rather more hair-like than squamiform, 

 the dense vittae however composed of true scales as usual; pronotal 



punctures less coarse and rather close-set 15 



15 Antennal club large, nearly as in modulata and lo-lineata; body large 

 in size. Color dark piceous, clothed sparsely with depressed and 

 slightly squamuliform pale yellow hairs, the vertex and the pronotum 

 anteriorly with longer pubescence, the latter canaliculate and with 

 three white vittae; scutellum along the middle, the elytral suture and 

 three discal and one short post-humeral vittae on each elytron, white; 

 pygidium frequently, and the legs and antennae invariably, fer- 

 ruginous. The yellow scale-like hairs are lanceolate and narrow, 

 being, on the elytra, about four times as long as wide; on the pro- 

 notum, especially in the vittae, they are broader, but toward the 

 margins they are elongated and are gradually converted into long 

 hairs, which toward the apex are as long as those on the back of the 

 head; the sides of the prothorax from a dorsal viewpoint appear 

 rounded and not angulated. Male with the antennal club large, the 

 clypeus rectilinearly truncate, the hind thoracic margin with long 

 hairs. Length 24.2-29.2 mm. Female with the antennal club small, 

 the clypeus subsinuate at apex, the hind thoracic margin with shorter 

 fringe, more as in io-lineata; anterior tibiae tridentate. Length 26.2- 

 33.8 mm. Oregon, Washington State and California. . crinita Lee. 

 A Male apparently similar to crinita but with the integuments deep 

 black throughout, the pygidium deep black, the femora blackish, 

 the tibiae and tarsi obscure ferruginous; antennae dark brown; 

 vestiture white, the sparse hair-like squamules pale yellow, the 

 erect hairs pale yellow-brown; vertex and clypeus densely punc- 

 tate, clothed with long erect hair and scattered elongate scales, 

 denser near the eyes, also dense and smaller and without erect hairs 

 in about apical half of the clypeus, which is broadly arcuate and 

 moderately reflexed at apex and with obtuse rounded angles; 

 antennal club between two and three times as long as the stem; 

 palpi dark brown, the last joint stout, obliquely acute at tip, the 

 external outline arcuate to the tip, having externally a large broad 

 oval chagrined area, which is not flattened; prothorax twice 



