ClCINDELID/E AND CARABIDJE 121 



always much narrower than the elytra; lustre more or less shining 

 but with the elytra always alutaceous or opaque 8 



8 Prothorax fully as wide as long, more strongly rounded at the sides. .9 



Prothorax apparently longer than wide, more broadly rounded at the 

 sides and more gradually narrowed posteriorly, except in esuriens, 

 where it is even more abruptly constricted at base than in castanipes. 



10 



9 Size larger, black, shining, the legs castaneous-red; elytra barely at 

 all alutaceous (cf) or distinctly so (9); head very moderate, less 

 than three-fifths as wide as the prothorax, the impressions rather 

 fine and shallow, straight and feebly diverging, the epistoma and 

 labrum evidently sinuate; antennae very slender on the narrow side; 

 prothorax with almost evenly rounded sides to near basal sixth, 

 there rather abruptly sinuate to the angles, which are sharp but 

 obtuse owing to an adjacent arcuation of the base, the latter very 

 broadly and feebly sinuate, only just visibly margined and very near 

 the sides, fully three-fourths the maximum width; surface convexly 

 steep to the narrowly reflexed marginal bead, the gutter a little 

 wider anteriorly, obsolete near the basal angles, the inner depression 

 rather broadly but moderately impressed, the outer obsolete; apical 

 angles rounded; median stria fine, far from attaining base or apex; 

 elytra oval, two-thirds to three-fourths longer than wide, a third to 

 nearly two-fifths wider than the prothorax, the striae rather fine, 

 impunctate, deeply impressed (cf ) or very feebly (9 ), the intervals 

 respectively distinctly convex or nearly flat; scutellar stria short 

 but evident, oblique; legs rather long. Length (cf 9 ), 12.8-14.8 

 mm. ; width 4.3-5.7 mm. California (vicinity of San Francisco Bay). 

 Very abundant, [contractus Lee.] castanipes Men. 



Size much smaller, more slender, nearly similar in coloration and lustre 

 but with the elytra almost similarly and only feebly alutaceous in 

 both sexes; head similar but with the impressions shorter, feebler, 

 more arcuate and more divergent, parallel in anterior half of their 

 length; prothorax nearly similar throughout but with the base more 

 narrowly subsinuate medially; elytra narrower though not quite so 

 elongate, oval, convex, a fourth to nearly a third wider than the pro- 

 thorax, the striae rather fine, impunctate, feebly impressed, only 

 slightly more so in the male, the intervals nearly flat in both sexes, 

 the reflexed lateral margins much narrower than in castanipes, the 

 scutellar stria very much longer, uniting with and forming part of 

 the first stria as a rule, the basal part of the latter in most, examples 

 wholly detached; legs shorter, the femora notably more slender. 

 Length (cf 9 ) 10.8-13.0 mm.; width 4.0-4.75 mm. California 

 (Humboldt Co.). Abundant gregalis n. sp. 



10 Body elongate, frequently almost subcylindrical, the elytra not at 

 all dilated 1 1 



Body less elongate, ventricose, the elytra rather broadly oval 15 



II Elytral margin broadly reflexed and concave, the surface very 

 gradually declivous and flat toward the base and humeri. Form 

 rather narrow, deep black, the legs and tarsi also black; surface 

 moderately shining, the elytra dull; head rather long, four-sevenths 



