8o MEMOIRS ON THE COLEOPTERA 



fifths longer than wide, slightly wider than the prothorax, parallel 

 and feebly arcuate at the sides, ogival at tip, the sinus broad and 

 evident; striae rather fine, not much impressed, the scutellar very 

 long, free; intervals flat or nearly so; hind tarsi slender, not puberu- 

 lent above, the basal joint of the posterior distinctly longer than 

 the fifth. Length (cf 9 ) 10.7-13.0 mm.; width 3.8-4.8 mm. New 

 Hampshire and Rhode Island to Missouri and Iowa. Seventy ex- 

 amples. Extremely abundant erythropus Dej. 



Form rather narrow and elongate, nearly as in erythropus but a little 

 larger and with somewhat larger head, pale piceo-rufous in color, 

 the elytra somewhat more obscure, the under surface slightly paler, 

 rufo-piceous, the legs and antennae pale flavo-testaceous; head 

 nearly three-fourths as wide as the prothorax, with very prominent 

 eyes, the antennae long and slender; prothorax two-fifths wider than 

 long, the outline and surface throughout nearly as in erythropus; 

 elytra nearly similar in form, proportion, strong striafion and very 

 long scutellar stria, but differing very much in sexual characters, 

 the surface not being polished in the male and dull in the female, 

 but shining and only slightly and equally alutaceous in both sexes; 

 tarsi slender, the posterior not pubescent above, with the first three 

 joints decreasing evenly and rapidly in length, the first much longer 

 than the fifth. Length (d" 9 ) 12.0-12.8 mm.; width 4.4-4.7 mm. 

 Missouri (St Louis). Three examples rufopiceus n. sp. 



Form notably broad, differing very much from the two preceding and 

 two following species in this respect, piceous-black in color, barely 

 at all paler beneath, the legs dark rufous; surface moderately dull, 

 the elytra opaculate: head not two-thirds as wide as the prothorax, 

 the eyes prominent, moderately large, the frontal fovese very small, 

 without surrounding depression, the antennae slender; prothorax 

 not quite one-half wider than long, the sides rounded, feebly con- 

 verging basally, the base evidently wider than the apex, the general 

 characters nearly as in erythropus; elytra shorter and broader, less 

 convex, barely one-half longer than wide, about a fifth wider than 

 the prothorax, the sides more rounding at base, the striae sharply 

 impressed, the intervals flat, the scutellar stria very long, fully a 

 fourth as long as the elytra; abdomen strongly punctured at the 

 sides of the base, closely medially as usual. Length (9 ) 12.7 mm.; 

 width 5.0 mm. Iowa (Keokuk) deludens n. sp. 



Form even narrower than in erythropus, not parallel as in the next species, 

 piceo-rufous, the elytra slightly more obscure, the under surface 

 and legs rufous throughout in the type; head moderate, the frontal 

 foveae in feeble impressions; eyes rather prominent; prothorax re- 

 latively somewhat small and narrow, two-fifths wider than long, as 

 in erythropus, except that the feebly converging sides basally are 

 straight or feebly subsinuate, the angles slightly obtuse but unusually 

 sharp, scarcely at all blunt at the apices, and also that the latero- 

 basal punctures become widely separated between the feeble, vague 

 and densely punctate foveae and the sides; elytra fully one-half 

 longer than wide and almost a third wider than the prothorax, the 

 parallel sides unusually arcuate, the striae sharply grooved, more 



