132 CASEY 



4 — Apex of the prothorax subtruncate, broadly sinuate laterally, the median 

 part arcuate, with a small median sinuation. Body very much smaller, 

 oblong, feebly inflated behind the middle, rather convex, moderately 

 shining, dull aeneous above, more cuprascent beneath; head densely, 

 moderately coarsely punctato-rugose, with a transverse callous spot 

 centrally, the pubescence short, not conspicuous; antennae cupreous, 

 sparsely hairy; prothorax three-fifths wider than long, the parallel sides 

 nearly straight to within an unusually short distance of the apex, 

 there rather abruptly rounded and convergent to the apex ; surface con- 

 fluently and coarsely punctate laterally, less coarsely, rather sparsely 

 medially, where the median line is feebly impressed before the middle 

 and rather more punctured, the ante-scutellar pit bipunctate; near 

 lateral fourth before the middle and at base there is a small irregular 

 callous area and behind the middle a large vague suboblique impressed 

 region; scutellum very small; elytra with the basal margin slightly 

 wider than the prothorax, not quite twice as long as wide, the grad- 

 ually rounding oblique sides in apical two-fifths becoming barely per- 

 ceptibly sinuate near the emarginate tips, which are strongly bispicu- 

 lose; surface densely and unevenly punctate, less densely so suturally, 

 the impressed striae distinct suturally but only finely punctate, the 

 raised elongate spots, separating the usual subdepressed areas of denser 

 and finer punctuation, moderately developed; under surface rugosely 

 punctate, the median tooth of the apical sinus (?) unusually broad and 

 parabolic in form, the two notches very small. Length ( 9 ) 14.0 mm.; 

 width 5.0 mm. Wisconsin truneata n. sp. 



Apex of the prothorax broadly, subevenly sinuate as usual 5 



5 — Sides of the elytra posteriorly very gradually rounding and oblique, 

 becoming straight or barely perceptibly and very broadly sinuate before 

 the emarginate apices ; body small in size 6 



Sides of the elytra more rapidly converging posteriorly, becoming very 

 obviously sinuate before the apices ; body larger and stouter 8 



6 — Elytra unusually elongate, more than twice as long as wide, with the 

 punctures everywhere distinct, close but not confluent laterally. Body 

 slender, convex, shining, feebly cupreous above and beneath, the ele- 

 vations blackish; head coarsely, densely punctato-rugose, with a trans- 

 verse central callus, the pubescence evident; prothorax one-half wider 

 than long, the sides straight and parallel to apical third, there rounding 

 and convergent to the apex ; surface somewhat tumid medially, feebly, 

 obliquely impressed near the base at about lateral fourth, with coarse 

 crowded punctures and some small and very irregular callous spots 

 laterally, the median parts sparsely but strongly punctured, the ante- 

 scutellar pit not evident; elytra at base very slightly wider than the pro- 

 thorax; surface unevenly and feebly striate, not so roughly sculptured 

 as usual, the elongated callous spots only slightly elevated, the areas 

 of dense punctures well defined and conspicuous ; under surface coarsely 

 punctato-rugose, the pectus ( 9 ) narrowly and deeply, the first ven- 

 tral unusually distinctly but broadly, sulcate, the fifth ventral with a 



