American Caraboidea 227 



sides evenly rounding at base; apex obliquely truncate, the external 

 angle rounded; striae fine, feebly punctulate, the intervals closely, 

 feebly punctate and with short fusco-fulvous pubescence, the general 

 surface dull and strongly micro-reticulate; anterior male tarsi 

 with a long oblique external series of squamules as usual. Length 

 (cf 9) 16. 0-16. 8 mm.; width 5.3-5.65 mm. Missouri (St. Louis); 

 also a single unlabeled male from the Levette collection. 



intermedia Csy. 



Body less slender, the elytra a little less than twice as long as wide in 

 the male, wider in the female 6 



6 — Size much smaller than in the two following, the prothorax narrow, 

 the sides deeply sinuate before the basal angles. Coloration, lustre, 

 sculpture and vestitute nearly as in the preceding, the short elytral 

 hairs still darker; head narrow, much elongated, deeply and densely 

 punctate, four-fifths as wide as the prothorax, the eyes abruptly 

 very prominent, the tempora circularly rounded to the neck and be- 

 coming nearly parallel toward the eyes; palpi moderate, the last 

 joint very obliquely truncate as usual; antennae sharply tricolored, 

 joints two to four black, the remainder somewhat pale red-brown; 

 prothorax narrow, elongate, much less than half as wide as the 

 elytra, the general structure and sculpture as in the preceding but 

 narrower and more elongate, the sinus before the basal angles deep, 

 the reflexed angles more conspicuous; elytra three-fourths longer 

 than wide, in general form and sculpture as in intermedia; anterior 

 male tarsi even more strongly, asymmetrically dilated, the basal 

 joint relatively distinctly shorter than in intermedia. Length 

 (cf) 157 mm.; width 5.5 mm. Missouri (St. Louis). 



angusticeps n. sp. 



Size larger, the prothorax and head broader, the thoracic sides much 

 more shallowly and broadly sinuate before the reflexed and obtuse 

 basal angles y 



7 — Color black, the prothorax and legs as in the preceding, the elytra 

 varying from nearly black to decidedly bluish; head somewhat 

 wider, moderately elongate, the punctures rather coarse, deep and 

 dense, the front with a small rufous medial spot; eyes very promi- 

 nent, the tempora feebly converging and circularly rounded to the 

 neck; antennae slender, sometimes uniformly fusco-ferruginous 

 though paler at base, rarely with the tricoloration of the preceding 

 more or less evident; prothorax slightly longer than wide, the 

 parallel sides broadly, subevenly arcuate, becoming sinuate basally 

 and parallel for a short distance at the angles, the tips of which are 

 sharply defined; surface somewhat densely and rugulosely punctate, 

 broadly subdeplanate along the sides, feebly, transversely impressed 

 at base, deeply concave at the reflexed angles; scutellum narrow, 

 acutely attenuate; elytra twice as wide as the prothorax, three- 

 fourths to four-fifths longer than wide, just perceptibly widest a 

 little behind the middle, the feebly arcuate sides evenly rounded at 

 base; apices and general surface as in the preceding two species; 

 anterior male tarsi only moderately dilated, very asymmetric, the 

 external fulvous fringe conspicuous, the basal joint as long as the 



