American Caraboidea 241 



nearly smooth, not quite regular, feebly impressed; intervals not 

 quite flat, the two dorsal punctures adjoining the third stria at 

 third and three-fourths. Length 3.8 mm.; width 1.5 mm. Rhode 

 Island (Boston Neck) cynica n. sp. 



Elytra blue, sometimes with feeble suffused violaceous lustre 5 



5 — Head well developed, not longer than wide, the body moderate in 

 width and convexity, polished; under surface shining and deep 

 black; head barely visibly narrower than the prothorax, with well 

 developed prominent eyes; front rather strongly strigato-rugose 

 throughout the width; antennae more than half as long as the body; 

 prothorax short, barely twice as wide as long, strongly but loosely 

 vermiculato-rugose, widest at the middle, the sides thence oblique 

 basally and broadly rounded and converging anteriorly; sides not 

 very widely reflexed, more widely so at base and with deep shining 

 gutter; basal lobe and sulcus distinct; apex feebly sinuate; basal 

 angles more than right but sharply defined; scutellum black; elytra 

 nearly a third longer than wide, feebly inflated posteriorly, barely 

 twice as wide as the prothorax; striae fine, nearly smooth, very 

 feebly impressed; intervals not quite flat, the punctures as in the 

 preceding; anterior male tarsi narrowly dilated, piceo-rufous. 

 Length 5.0 mm.; width 2.15 mm. California (Hoopa Valley, 

 Humboldt Co.) perita n. sp. 



Head rather well developed and slightly longer than wide, the eyes less 

 prominent than in perita, the front smoother and having scarcely 

 more than a few minute punctures; antennae rather more than half 

 as long as the body; prothorax very short, evidently wider than the 

 head, fully twice as wide as long, widest before the middle but with 

 the sides broadly and feebly rounded, straighter but only slightly 

 converging basally; margins finely reflexed anteriad, rather broadly 

 deplanate at base; median stria fine, feebly impressed; surface finely, 

 feebly and subvermicularly sculptured; elytra a third longer than 

 wide, barely twice as wide as the prothorax, feebly inflated behind; 

 striae rather fine and nearly smooth but deeply impressed, the 

 intervals distinctly convex; two dorsal punctures small, at the 

 same distance from base and apex; the elytra are bright steel-blue, 

 the head and prothorax black, with just perceptible dark greenish 

 lustre. Length 4.4 mm.; width 1.85 mm. Nevada (Reno). 

 A single example, taken by the writer truckeensis n. sp. 



Head rather well developed, though evidently narrower than the pro- 

 thorax, the eyes not quite so large as in perita and distinctly less 

 prominent; front very smooth and polished, with a few feeble 

 rugulie near the eyes; antennae not so long as in perita and slightly 

 more slender, scarcely half as long as the body; prothorax not 

 quite twice as wide as long, the sides subparallel to beyond the 

 middle, thence strongly rounding to the apex, subsimilarly reflexed, 

 the gutter not quite so deep or shining; surface nearly smooth; 

 basal lobe and sulcus distinct; elytra narrower, two-fifths longer 

 than wide, only feebly inflated behind, twice as wide as the prothorax; 

 striae very fine, not impressed, feebly micro-undulated; intervals 

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



