CICINDELID.E AND CARABID^E 125 



Group V angustus Dej. 



This group is composed of a moderate number of very small, 

 parallel, more or less slender and sometimes linear species, inhabit- 

 ing the more median parts of the Pacific coast regions, and, besides 

 angustus, includes inanis and perhaps also caligans of G. H. Horn. 

 Those before me may be known as follows: 



Form not exactly parallel, the prothorax evidently narrower than the 

 elytra, piceous-black, moderately shining, the elytra slightly aluta- 

 ceous; head rather small, the impressions deep, abrupt, narrow and 

 cleft-like, feebly diverging; eyes rather well developed, but not 

 very convex; prothorax slightly longer than wide, the sides broadly 

 arcuate, gradually converging behind very nearly to the angles, where 

 there is a short strong sinus, the angles acute and rather prominent; 

 base margined only very near the sides, four-fifths the maximum 

 width; surface convex, extremely finely margined, the stria fine, 

 not entire, inner impression linear, fine, moderately deep, more 

 than a fifth the total length, the outer also fine, linear and deep like 

 the inner, but only slightly more than half as long; elytra oblong- 

 oval, nearly three-fourths longer than wide, twice as long as the 

 prothorax and a fourth or fifth wider, evenly rounded behind, the 

 sides very feebly arcuate and parallel; striae fine but rather deep, 

 smooth and impunctate, the scutellar moderately long but extremely 

 fine, the intervals not quite flat; striae on the flanks finer and feebler 

 than those thence to the suture; line of lateral foveae very broadly 

 interrupted; legs only moderately long, rather slender. Female 

 slightly stouter than the male just described, with more oval and 

 laterally rounded elytra and shorter outer thoracic impression, 

 bounded externally by a more obtuse elevation. Length (cf 9 ) 

 10.0-10.5 mm.; width 3.2-3.5 mm. California (Placer Co.), 

 Koebele inanis Horn 



Form exactly parallel, the elytra not distinctly wider than the prothorax, 

 the latter with entire basal margin ; size smaller 2 



2 Form stouter, dark rufous in color throughout and strongly shining; 

 head rather small, with the impressions unusually long, broad and 

 strong, slightly arcuate and diverging; eyes well developed but 

 not very convex; prothorax evidently longer than wide, parallel, 

 the base being even somewhat wider than the apex; sides broadly 

 and distinctly rounded, gradually feebly converging basally, be- 

 coming feebly sinuate very near the angles, which are nearly right 

 and very sharp but not prominent; base feebly sinuate medially, 

 strongly margined throughout the width and about eight-ninths ( 9 ) 

 to six-sevenths (cf) the maximum width; surface convex, very 

 finely margined at the sides, the apex only feebly sinuate, the angles 

 narrowly rounded; stria fine, not entire, the basal impressions fine, 

 deep and lineiform, the outer about half as long as the inner and 

 still shorter and feebler in the female; elytra oblong, feebly arcuate 

 at the sides, rounded at apex, three-fifths longer than wide, dis- 



