142 CASEY 



confusedly, densely punctured laterally, with the callous spots more 

 diffused; elytra at base much less evidently wader than the prothorax, 

 the sides still more gradually converging posteriorly, and, from a little 

 behind the middle, the surface nearly similar but with the black eleva- 

 tions more numerous, irregular and confused, except near the suture, 

 the small and clearly defined, cupreous areolae deeper. Length ( d^) 

 13.0 mm.; width 4.3 mm. Massachusetts filiola n. subsp 



8 —Prothorax narrowed gradually from base to apex. Form moderately 

 stout, convex, shining, cupreous with the smooth parts blackish above, 

 rather dull cupreous beneath; head confusedly and densely punctato- 

 rugose, more or less impressed along the median line throughout, with 

 a central interrupting callus; eyes moderately prominent; prothorax 

 at base three-fourths wider than long, with the sides slightly prominent 

 behind the middle; surface feebly impressed and closely punctate 

 along the median line, more deeply anteriorly, the two basal punctures 

 strong; punctures laterally only moderately coarse, very dense on each 

 side of the sublateral ragged line of callus, coarser and very dense with 

 much mingled callus near the sides ; elytra not evidently wider than the 

 base of the prothorax, twice as long as wide to the base of the cauda, 

 the sides gradually rounding and converging in apical two-fifths, the 

 prolongations gradual, becoming parallel and strongly divaricate; 

 surface densely, rugosely punctured laterally, finely, sparsely so sutur- 

 ally, without distinct punctured series except feebly near the suture and 

 without distinct finely punctured areola?, the black spots only feebly 

 elevated, elongate suturally but small and irregularly ramifying else- 

 where; female with the medial terminal tooth short, broad and triangu- 

 lar. Length (9) 18.4 mm.; width 6.2 mm. Pennsylvania. 



caudata Lee. 



Prothorax subparallel and generally slightly sinuate at the sides behind the 

 middle g 



Prothorax evidently though gradually narrowed basally, the width at the 

 base more or less obviously less than at the middle, where the sides are 

 more or less inflated though rounded 19 



9 — Sides of the prothorax obtusely but sharply angulate at the middle. 

 Body stout, convex, partially shining, black with the punctures green 

 anteriorly, the elytra, except suturally and throughout the width bas- 

 ally, dull cupreous and green intermingled, the elevations black as 

 usual; under surface in great part black, the punctures cupreous; head 

 confusedly but not very densely punctate, with numerous small iso- 

 lated callous spots which are very irregular in form, the eyes rather 

 small but prominent; prothorax three-fourths wider than long, the sides 

 sinuate in basal, converging and nearly straight in apical, half, sparsely 

 punctate medially, with a small apical punctate impression and a 

 closely double basal pit, the punctures laterally not very coarse and 

 everywhere isolated, mingled with much black callous area; surface 

 unimpressed; elytra not wider than the prothorax, between two and 

 three times as long as wide, the sides gradually rounding and con- 

 verging in posterior two-fifths, the prolongation gradually formed but 



