THYCE AND POLYPHYLLA 351 



anterior tibiee bidentate. Length 23.0-24.5 mm.; width 10.5-11.0 

 mm. Five specimens. 



Virginia (Hampton Roads), North Carolina (Southern Pines) and 

 Florida (Jacksonville) occidentalis Linn. 



31 Form cylindric-oval, strongly convex, shining, pale red-brown in 

 color, the under surface and pronotum sometimes largely black, the 

 vestiture consisting of minute sparse yellowish hairs and irregular 

 condensations of hairs generally white but sometimes yellow on the 

 elytra; vertex not very coarsely, rather sparsely punctate and clothed 

 throughout with a loose mixture of subdecumbent and erect hairs of 

 moderate length, a little coarser and usually whiter near the eyes; 

 clypeus twice as wide as long, rather strongly to finely and closely 

 punctate, moderately concave and clothed with rather short prostrate 

 hairs, the apex broadly arcuate to feebly obtusely angulate, the 

 angles rounded, the sides more or less feebly converging thence to 

 the base; antennal club notably small, feebly reflexed apically, about 

 three-fourths longer than the stem; last palpal joint slender, with an 

 elongate external impression, not observable in any of the preceding 

 species; prothorax somewhat more, to slightly less, than twice as 

 wide as long, the sides obtusely and feebly prominent medially; 

 punctures relatively fine and very irregularly distributed, generally 

 sparse, a little stronger and less sparse anteriorly, the sparse ves- 

 titure of decumbent hairs becoming closer to dense along the median 

 line and sometimes near the sides, the usual partial sublateral vittae 

 sometimes faintly indicated; erect hairs usually wanting, though 

 sometimes evident anteriorly toward the middle; scutellum clothed 

 with prostrate hairs, sometimes entirely, but often only along the 

 middle; elytra a little less than one-half longer than wide, a third 

 wider than the prothorax, rounding behind in apical third or more, 

 the dense hairs along the suture and forming the very irregular 

 spots coarse and subsquamiform, the other hairs sparse, short and 

 fine; pygidium equilatero-triangular, convex, clothed not densely 

 but abundantly with minute slender decumbent hairs, without erect 

 hairs; abdomen concolorous, the segments subglabrous toward their 

 bases; middle tarsi as long as the tibiae to distinctly shorter. Female 

 not at hand but, according to Horn, having the clypeus very short 

 and the sexual characters as in lo-lineata. Length 20.0-24.0 mm.; 

 width 8.5-11.5 mm. Maine and Lake Champlain to southern New 

 Jersey. The male abundant at times variolosa Hentz 



Form oblong-oval, the size much larger; coloration as in variolosa and 

 similarly variable, the vestiture nearly similar, the prostrate hairs a 

 little shorter and thicker; clypeus nearly similar but with the de- 

 cumbent hairs much less uniformly distributed, being very sparse in 

 basal and dense in apical half; antennal club differing greatly, being 

 as large as in lo-lineata and between three and four times as long 

 as the stem, much more strongly reflexed distally; last palpal joint 

 flattened but not impressed externally; prothorax short, more than 

 twice as wide as long, the sides obtusely prominent just behind the 

 middle, the punctures nearly as in the preceding but still sparser and 

 more irregularly distributed, the hairs coarser, distinctly squamiform 



