no MEMOIRS ON THE COLEOPTERA 



and clear rufous throughout; head well developed, \vith prominent 

 eyes, the sulci deep, oblique posteriorly; antennae fuscous, in great 

 part rufous basally, only moderately slender, the medial joints not 

 quite three times as long as wide; prothorax one-half wider than 

 long, a little less (cf), in outline nearly as in the preceding, the sur- 

 face also similar, except that the foveae and carinae are about equal 

 in length; elytra distinctly less than one-half longer than wide, one- 

 half wider than the prothorax, circularly rounded behind, the striae 

 rather fine, barely at all impressed, gradually very distinctly punc- 

 tate basally, the punctures posteriorly so fine as to be barely trace- 

 able; third interval but little wider than the others; foveae somewhat 

 before both basal and apical third. Length (cf 9 ) 3.6-4.0 mm.; 

 width 1.35-1.55 mm. Rhode Island and New York (lower Hudson 

 Valley). Three examples marcidum n. sp. 



41 Form moderately stout and convex, very shining, the anterior parts 

 metallic green and without trace of alutaceous lustre; elytra pale 

 flavo-testaceous, with a biangulate transverse darker fascia at about 

 the middle, and another between this and the apex, the latter fascia 

 shorter, not extending much beyond the fourth or fifth interval; the 

 anterior fovea lies within a small blackish spot, exterior to which 

 there is some feeble shading, and also some around the scutellum; 

 under surface black, the abdomen partially rufous, the legs and epi- 

 pleura pale flavo-testaceous; head moderate, with rather narrow, 

 deep sulci; antennae long, slender, fuscous distally; prothorax one- 

 half wider than long, the strongly and subevenly rounded sides be- 

 coming sinuate basally and subparallel for a short distance before 

 the angles; base depressed; stria very fine; foveae small, deep, sub- 

 linear, the carina strong and much longer; elytra one-half longer than 

 wide and more than one-half wider than the prothorax; gradually 

 obtusely ogival behind; striae somewhat coarse and moderately im- 

 pressed; punctures rather coarse and deep basally, traceable to the 

 declivity, the seventh stria strong and entire, like the others; foveae 

 near basal and apical third. Length (d 71 9 ) 4-7~5-4 mm.; width 1.8 

 -2.1 mm. Illinois (Cairo) and Montana (Glendive), YVickham. 

 Five examples dorsale Say 



Form stouter and more convex, much less shining, the head distinctly 

 and the pronotum feebly alutaceous, black, with feeble viridi-aeneous 

 lustre, the elytra pale brownish, darker than in dorsale but with the 

 same darker markings, except that there is scarcely any shading 

 outside the anterior discal foveal spot or about the scutellum, the 

 posterior fasciae rather broader; under surface, legs and antennae 

 nearly similar in coloration; head larger but not as wide as an ely- 

 tron, with similarly prominent eyes, the sulci broader, moderately 

 deep; antennae long and slender, the medial joints nearly four times 

 as long as wide; prothorax two-fifths wider than long, the sides 

 slightly more prominently rounded just before the middle, straighter 

 apically, more gradually sinuate basally, even more strongly re- 

 flexed; anterior impression more evident, the base somewhat de- 

 pressed and more strongly punctured; foveae punctate, moderate, 

 sublinear, as long as the carina, which is relatively somewhat shorter 



