American Caraboidea 187 



not denticulate; striae deep and abrupt, finely punctulate, the oblique 

 scutellar stria evident but not long; intervals nearly flat; prosternal 

 process margined throughout. Length (9) 11.8 mm.; width 4.0 mm. 

 California (Olancha, Inyo Co.), — Dury. 



May be placed near arcanus, but the prothorax is more narrowed 

 toward base and the elytral striae do not become so deep and 

 coarsely impressed toward the sides. 



Hypherpes pergracilis n. sp. — Elongate, slender and rather convex, 

 somewhat shining, black, the legs pallescent basally, the anterior tarsi 

 rufescent; head slightly elongate, three-fifths as wide as the prothorax, 

 the eyes moderate and only slightly convex; anterior impressions some- 

 what broad and smooth, curving outwardly behind; antennae but just 

 visibly compressed, distinctly longer than the head and prothorax, the 

 latter somewhat longer than wide, widest just before the middle, the 

 sides moderately, subevenly arcuate, converging behind, becoming 

 sinuate, parallel in fully basal sixth, the angles right and very sharply 

 marked; transverse impressions obtuse, feeble and barely traceable, the 

 median stria rather fine but deep, slightly biabbreviated; foveae smooth, 

 obtusely and feebly impressed in basal third, the surface thence to the 

 sides flattened or feebly concave, the posterior setigerous puncture 

 somewhat distinct, the margins finely reflexed; base narrower than the 

 deeply sinuate apex, not margined laterally; elytra twice as long as 

 wide, a third wider than the prothorax, elongate-oval, the sides not 

 more arcuate basally, the humeri denticulate; striae moderate, impressed, 

 a little coarser toward the sides, finely and feebly punctulate, the scutellar 

 stria, as well as the subscutellar puncture, completely obsolete; intervals 

 micro-reticulate, not quite flat, convex laterally and apically; prosternal 

 process margined throughout. Length (9) 13-8 mm.; width 4.6 mm. 

 California (Olancha, Inyo Co.), — Dury. 



This species may be placed near panticulatus, having an almost 

 identical form of prothorax, but with very much narrower and 

 more elongate elytra, without trace of the scutellar stria so distinct 

 in the latter species; it is much smaller than spraguei Lee, which 

 also has a distinct scutellar stria. 



Hypherpes sufiflatus n. sp. — Form rather stout, convex, deep black and 

 polished throughout above and beneath, the legs blackish-piceous; head 

 only moderate in size, four-sevenths as wide as the prothorax, the eyes 

 rather prominent, the anterior impressions parallel, deep, inflated and 

 sinuous outwardly behind; antennae rather stout, as long as the head 

 and prothorax, the latter relatively large and convex, slightly wider than 

 long, widest at anterior two-fifths, the sides regularly arcuate and finely 

 reflexed, oblique and straight posteriorly, the angles obtuse, with rather 

 blunt tips; base rectilinear, as wide as the moderately sinuate apex and 

 not margined laterally; transverse impressions very obtusely and feebly 

 marked, the stria distinct, biabbreviated; foveae smooth, broadly and 



