PTEROSTICHIN^E 347 



subparallel; antennae fusco-testaceous; prothorax not over a fourth 

 wider than long; base distinctly sinuate medially and arcuate at 

 each side; apex more than usually sinuate; sides very evenly rounded 

 from apex to the moderately abrupt constriction, thence parallel 

 and straight for a tenth or twelfth the total length to the angles, 

 which are more than right though scarcely blunt; surface with a few 

 wavy ruguliform lines, smooth at base; transverse impressions both 

 distinct, the anterior arcuate; foveae somewhat rounded, deep, 

 smooth, the inner incised line short and fine, not attaining the base; 

 between the foveae and the sides there is a strong straight carina 

 along the parallel parts of the sides, its posterior end not at all in- 

 flexed; elytra three-fifths longer than wide, barely a fifth wider 

 than the prothorax, oblong-suboval, the subapical sinus long and 

 extremely feeble; striae deep, abruptly impressed, with the punctures 

 along the bottom scarcely distinguishable, the scutellar wanting, 

 the seventh distinct; intervals but just visibly convex. Length (cf ) 

 13.0 mm.; width 4.2 mm. Iowa iowana n. sp. 



Fine incised line along the thoracic apex wholly wanting as a rule, except 

 laterally 1 1 



II Prothorax of peculiar outline, the sides parallel and feebly arcuate, 

 more rounding apically and rather rapidly, arcuately converging 

 well behind the middle to the rather broadly rounded sinus, thence 

 becoming subparallel and straight for a very short distance to the 

 angles, which are barely more than right. Body rather small in 

 size, not stout, convex, polished and piceous, the abdomen and legs 

 rufous; head two-thirds as wide as the prothorax, the eyes only very 

 feebly convex; prothorax a third wider than long; base transverse 

 and rectilinear; posterior impression shallow but evident, the ante- 

 rior obsolete; foveae large and irregular, extending inwardly almost 

 to the middle, the inner incised line short, fine and far from the base, 

 the carina along the postero-lateral margin fine but distinct; elytra 

 over one-half longer than wide, a fourth wider than the prothorax, 

 oval, the sinus long and very shallow; striae rather coarse and deeply 

 impressed, finely punctate, the scutellar very short or wanting; in- 

 tervals rather strongly convex. Length (cf ) 11.5 mm.; width 4.0 

 mm. Kansas abdominalis Lee. 



Prothorax of regular outline, the sides subevenly arcuate from apex to 

 the constriction 12 



12 Sides of the prothorax more strongly arcuate, more rapidly curving 

 inward posteriorly to the constriction. Body rather narrow and 

 elongate, shining, the elytra feebly alutaceous in the female, black, 

 the legs piceous; head fully two-thirds as wide as the prothorax, 

 the eyes prominent; antennae somewhat thicker basally than usual; 

 prothorax two-fifths wider than long, the subbasal sinus at the sides 

 broadly rounded, not at all abrupt, the sides thence becoming 

 scarcely parallel through the extremely short distance to the base, 

 which is transverse; surface with the transverse impressions feeble, 

 the anterior rather close to the apex; foveae consisting of the usual 

 two broadly and deeply impressed lines confluent basally, the outer 

 the shorter, half as long as the inner, the surface between it and the 



