American Caraboidea 257 



prothorax throughout nearly as in the preceding but not quite so 

 large; elytra two-fifths longer than wide, feebly inflated posteriorly, 

 nearly twice as wide as the prothorax; striae smoother, finer and 

 not quite so impressed as in the preceding. Length 4.2 mm.; 

 width 1.65 mm. Texas (Brownsville), — Wickham. Two examples. 



esurialis n. sp. 



II — ^Apical pale area of the elytra usually not joining the anterior pale 

 areas; body much larger in size. Atlantic regions 12 



Apical pale area usually joining the anterior — less certainly in metuens; 

 body much smaller in size. Pacific and Sonoran regions 14 



12 — Anterior pale spots of the elytra separated from the apical fascia by 

 a very broad black fascia. Body moderate in size and convexity, 

 rather shining, black, the pronotum rather less deeply and with 

 the broadly reflexed margins abruptly pale; elytra each with a 

 broad comma-like pale spot, from the middle, attenuate and even- 

 escent at base, extending internally to the first stria and separated 

 from the sides by about two black intervals, the scutellar black area 

 transversely subquadrate; pale sides limited to the reflexed margin; 

 pale apical fascia well developed; head nearly as wide as the pro- 

 thorax, with moderate but very prominent eyes; surface smooth, 

 very finely and faintly subrugulose near the eyes; antennae slender, 

 fully half as long as the body, pale testaceous throughout; pro- 

 thorax moderate, not quite though nearly twice as wide as long, 

 the sides broadly rounded, the hind angles minutely and bluntly 

 subprominent; rugulosity usually distinct; median line fine, at- 

 taining the apical margin; elytra a fourth to third longer than 

 wide, oblong, barely inflated behind, twice as wide as the pro- 

 thorax, with fine, smooth and slightly impressed striae, the intervals 

 evidently convex; dorsal punctures at basal and apical fourth, 

 they being unusually widely separated; under surface and legs 

 pale. Length 4.3-5.0 mm.; width 2.0-2.2 mm. Lake Superior 

 (Marquette) and Rhode Island (Boston Neck). Four examples. 



canonica n. sp. 



Anterior pale spots very narrowly separated from the broad apical pale 

 fascia, sometimes connected as in the typical fuscata 13 



13 — Body of comparatively large size, moderately convex, shining, the 

 pronotum less so, black, the pronotum pale at the sides in some- 

 what more than the broadly reflexed margins; elytra each with a 

 large basally narrowed spot, extending from behind the middle to 

 the base, attaining the first stria internally and separated from 

 the fine pale margin by about two dark intervals, the apex broadly 

 pale, this area suturally emarginate, and separated very narrowly 

 and imperfectly from the anterior spots, the submarginal black 

 vitta attaining apical fourth; under surface and legs pale; head 

 four-fifths as wide as the prothorax, with large and very prominent 

 eyes, the surface smooth; antennae slender, not quite half as long 

 as the body, pale brownish-testaceous, clearer basally; prothorax 

 fully twice as wide as long, the rounded and broadly reflexed sides 

 very converging at apex, the hind angles sharply marked; rugulosity 

 T. L. Casey, Mem. Col. IX, Feb. 1920. 



