American Caraboidea 197 



impressed and with rather small but distinct punctures, obsolescent 

 apically; scutellar stria extremely short or obsolete; intervals very 

 feebly convex, equal in width; dorsal puncture on the second stria 

 at three-fifths. Length (9) 15.8 mm.; width 5.6 mm. A single 

 example from the Levette collection, without indication of locality 

 but probably from Indiana retractus n. sp. 



Sides of the prothorax not evenly arcuate, the greatest width at or even a 

 little behind the middle, the sides thence anteriorly only very feebly 

 converging and much less arcuate and converging than posteriorly. .9 



9 — Form elongate, moderately convex, evidently ventricose, black, the 

 legs and sometimes the under surface piceo-rufous; upper surface 

 (cf ) polished throughout, the elytra with feeble micro-reticulation, 

 or (9) shining, with opaculate elytra; head three-fifths as wide as 

 the prothorax, with remote and slightly diverging anterior sulci, 

 the mandibles covered, except as usual externally, with coarse 

 oblique strigilation; palpi truncate at tip, the antennae not quite as 

 long as the head and prothorax, thick as usual; prothorax only a 

 fourth or fifth wider than long, the sides very narrowly reflexed, 

 the basal sinus shallow, the short portion thence to the obtuse but 

 distinct basal angles, almost parallel; apical incised line visible 

 laterally, the surface without transverse impressions, the median 

 stria coarsely impressed, the remote rugulae feeble; fovese irregularly 

 impressed, nearly smooth, the outer ridge not at the margin and 

 three-fourths as long as the inner line; inner impression near the 

 fovese very feeble; elytra two-thirds longer than wide, a third to 

 two-fifths wider than the prothorax, oblong-oval, the subapical 

 sinus long and very feeble; stride moderate, slightly impressed, the 

 punctures small but distinct, obsolete apically, the scutellar stria 

 wanting; intervals very feebly convex in both sexes; anterior male 

 tarsi pale rufous, well dilated. Length (cf 9) 16. 0-17. 8 mm.; 

 width 5.9-6.2 mm. Ohio and Indiana. [Evarthrus fatuus Lee.]. 



sodalis Lee. 



Form narrower, convex, highly polished throughout in the male, deep 

 black, the legs black; head as in sodalis but not quite so large, with 

 similarly rather prominent eyes, the mandibles smaller and with 

 fewer strigae; antennae similar; prothorax barely a fifth wider than 

 long, the sides more finely reflexed, more parallel and broadly, sub- 

 evenly arcuate to behind the middle, then more rounding and con- 

 verging to the rather more abrupt sinus, the short part thence to the 

 base slightly converging to the somewhat rounded angles; trans- 

 verse impressions feeble though rather evident, the apical incised 

 line fine, much nearer the margin and broadly interrupted medially; 

 median stria deep, greatly biabbreviated; rugulae fine and remote; 

 foveae linear, deeply impressed, the outer ridge not well defined and 

 less than half as long as the linear inner part, the intervening surface 

 very smooth and not deeply concave; elytra oval, nearly three- 

 fourths longer than wide, only a fourth wider than the prothorax, 

 the sinus very feeble; striae moderately coarse and deeply impressed, 

 with strong punctures, obsolescent apically, the seventh feeble, the 

 scutellar wanting; intervals broadly and moderately convex, the 



