CETONIIN.E 373 



elytra a third longer than wide, nearly one-half wider than the pro- 

 thorax, parallel and broadly arcuate at the sides, the sculpture as in 

 scabra but feebler and less dense; pygidium strongly convex, with 

 sparse fine feeble crescentiform punctures, each bearing a very minute 

 hair, the sculpture minutely, feebly, transversely rugulose basally; 

 legs long as usual; hind tarsi short, barely two-thirds as long as the 

 tibiae. Length (cf) iS.o mm.; width 8.3 mm. Maine (Paris), 



Frost delicatula n. sp. 



Body larger and stouter, the apical thoracic angles blunt at tip, the 

 oblique sides apically not or only very feebly sinuate, the sinus not 

 extending to the tips of the angles as it does in the preceding. Body 

 very depressed, the elytra nearly flat on the disk, blackish-piceous 

 to paler, the upper surface only moderately shining due to the strong 

 dense sculpture and having an obscure cupreous lustre; head concave 

 between the strong supra-antennal prominences and with irregular 

 fine annuli, close-set though leaving some vacant areas, the base very 

 coarsely, deeply, confluently punctate; antennal club longer, less 

 stout and much less evenly oval than in the preceding; clypeus more 

 deeply concave, the ridge separating it from the vertex much more 

 pronounced, the surface with irregular confluent feeble annuli; 

 reflexed clypeal edge not sinuate medially; prothorax nearly two- 

 fifths wider than long, the sides very prominent at or just before the 

 middle, thence oblique and subsinuate to straight to the base; 

 anterior ridges moderately developed, the general surface but slightly 

 convex, the punctures coarse, deep, very dense and confluent, except 

 basally, where they are separated by from once to twice their own 

 diameters; scutellum longer, with more numerous and coarser 

 punctures, impressed along the median line as usual; elytra oblong, 

 slightly more than a fourth longer than wide, about a third wider than 

 the prothorax, the sides parallel and arcuate; surface with coarse 

 strong anastomosing vermiculate rugae, among which several coarse 

 longitudinal excavated striiform lines can be observed, especially 

 inwardly; hollows between the rugae with small feeble annuli; 

 propygidium with fine, extremely dense punctiform sculpture, 

 bearing very minute dense hairs, the apical margin abruptly smooth; 

 pygidium convex, with moderately close-set, strong but not coarse, 

 crescentiform punctures, the basal margin impressed, very densely 

 and minutely rugulose and opaque; legs long, stouter than in the 

 preceding, the posterior tibiae with two external spines, the anterior 

 with the usual three strong sharp triangular subequal and nearly 

 equidistant teeth; hind tarsi not quite two-thirds as long as the 

 tibiae. Length (4 cf ) 19.8-20.8 mm.; width 10.0-10.4 mm - ^ ew 

 York (Peekskill and Staten Island) and Maryland. [Trichius scaber 



Beauv.; Gymnodus foveatus Kirb>] scabra Beauv. 



A Similar to the preceding but with the pronotum distinctly more 

 convex, the anterior ridges stronger, especially the two median, 

 the punctures of the pronotum less coarse, close but scarcely con- 

 fluent anteriorly and, posteriorly, becoming much sparser toward 

 the middle; cavities of the head and clypeus with the fine feeble con- 

 fluent annuli much denser; antennal club more oval; elytra nearly 



