American Caraboidea 203 



rounded; palpi slender, black, the last joint slightly shorter than the 

 third; mandibles rugosely punctate distally; antenna slender; pro- 

 thorax relatively small, two-thirds wider than long, the sides parallel, 

 broadly rounded and more converging anteriad, feebly converging and 

 straight in about basal half, finely reflexed basally, more coarsely an- 

 teriorly; basal angles obtuse and slightly blunt; base evidently wider 

 than the apex, transverse, oblique at the sides; surface with some 

 distant rugulae, the impressions very feeble, the stria distinct, attaining 

 base but not apex; fovese short, linear, impressed, distant from the base 

 and at outer fourth; elytra large, oblong, with parallel and broadly 

 arcuate sides, one-half longer than wide and nearly one-half wider than 

 the prothorax; striae rather fine, deeply incised, feebly punctulate, the 

 seventh deep and more punctate; intervals feebly convex. Length 

 (9) 16.5 mm.; width 7.2 mm. Lake Superior. 



May be placed near striatopunctata, but it is larger, much broader 



and with finer and virtually impunctate stria?; the labrum has 



much more unequal lobes than in that species. 



Diplocheila brevicollis n. sp. — Form narrowly-suboval, rather convex, 

 moderately shining, black; head rather small, with very prominent 

 eyes, four-sevenths as wide as the prothorax, the anterior declivity 

 feebly marked, the foveae small, rather deep and well defined; epistomal 

 sinus rather deep, parabolic, the beading fine medially, broader laterally; 

 labral lobes very unequal, the right lobe long, narrow at tip; mandibles 

 very short; palpi slender, black, with pale tips, the last joint barely at 

 all shorter than the third; antennae about as long as the head and pro- 

 thorax, the latter short, three-fifths wider than long, the sides moderately 

 and almost evenly arcuate and finely reflexed from apex to base, a little 

 more converging apically; basal angles obtuse and slightly rounded; 

 base evidently wider than the apex, transverse, oblique at the sides; 

 anterior transverse impression very feeble, the posterior obsolete, the 

 stria deep, somewhat impressed, not quite attaining base or apex; foveae 

 linear, rather long, at half their length from the base and at outer fourth; 

 elytra elongate-suboval, narrowed arcuately and unusually gradually 

 behind, three-fifths longer than wide, almost one-half wider than the 

 prothorax; striae rather fine but sharply incised, a most equally deep 

 throughout the width and finely lineato-punctate, the intervals feebly 

 convex; dorsal puncture small, at the middle and at inner third of the 

 third interval; anterior male tarsi distinctly dilated, black. Length 

 (cf ) 12.8 mm.; width 5.4 mm. New York (Ogdensburg). 



This species is allied to striatopunctata but differs in its narrower 

 form, shorter prothorax, shorter mandibles, more prominent eyes 

 and more finely punctured striae; the three dilated joints of the 

 anterior male tarsi decrease but slightly in width, while in striato- 

 punctata they diminish rapidly. 



Diplocheila modesta n. sp. — Smaller, moderately convex and shining, 

 black; head three-fifths as wide as the prothorax, with moderate but 



