ClCINDELID^: AND CARABID^ 123 



more notably narrower than the elytra and not abruptly constricted 

 at base as it is in esuriens 13 



13 Side margins of the elytra very narrowly reflexed; body small 

 in size. Form rather narrow, moderately convex, shining, the 

 elytra only just visibly alutaceous even in the female, black 

 with a piceous tinge, the under surface slightly, and legs more 

 pallidly, rufous; head moderate, the impressions rather short, 

 parallel and deep; prothorax apparently longer than wide, the sides 

 broadly, very moderately arcuate, becoming gradually convergent 

 and broadly, feebly sinuate posteriorly to the angles, which are 

 slightly obtuse though sharply denned; base transverse, not sinuate, 

 faintly margined only at the sides, three-fourths the maximum width; 

 surface moderately convex, only finely reflexo-marginate at the sides, 

 a little less finely toward the obtusely rounded apical angles, the 

 inner depression deep though broadly impressed and not sharply 

 marked, about a fifth the total length and gradually turning outward 

 posteriorly to the hind margin near the angles, the latter marked on 

 the surface by a minute oblique elevation; median stria rather fine, 

 not entire; elytra subevenly oval, rather acutely rounded at apex, 

 three-fourths longer than wide, two-fifths wider than the prothorax, 

 the striae rather fine but deep, smooth and punctureless, the intervals 

 nearly flat, feebly convex laterad; legs moderate, the tarsi unusually 

 slender. Length (9) 11.5 mm.; width 4.0 mm. California (Hum- 

 boldt Co. Hydesville, Valley of Eel River) lacertus n. sp. 



Side margins distinctly though moderately reflexed, as usual throughout 

 this special group 14 



14 Elytral striae impunctate as usual. Body rather small in size, black, 

 shining, the elytra evidently alutaceous, the under surface and legs 

 black or blackish; head moderate, the impressions nearly as in 

 lacertus; prothorax apparently just longer than wide, the sides 

 broadly and moderately rounded, gradually converging posteriorly 

 but becoming just visibly sinuate only near the angles, which are 

 abruptly rather acute and laterally prominent; base three-fourths 

 the maximum width; surface unusually broadly grooved and reflexed 

 along the sides, the inner impression fully a fourth th.e total length, 

 rather broadly concave, though somewhat sharply defined along the 

 bottom, nearly straight, not curving outward basally, the surface 

 thence to the sides feebly convex, the outer impression obsolete; 

 median stria fine but deep, subentire; elytra elongate-oval, the sides 

 unusually evenly arcuate from the humeri almost to the narrowly 

 rounded apex, more than three-fourths longer than wide, fully 

 two-fifths wider than the prothorax; surface strongly but almost 

 evenly convex, the striae rather fine but very deep, the intervals 

 just visibly convex inwardly but distinctly so and more alutaceous 

 laterad; scutellar stria very short, oblique; legs moderately short and 

 slender. Length (9) 12.0 mm.; width 4.2 mm. California (Mon- 

 terey), Dunn sponsor n. sp. 



Elytral striae more or less evidently punctulate, at least laterally, the 

 size materially larger, the elytra more parallel. Body elongate, 

 moderately convex, rather narrow and more parallel, the female 



