AMARINJE 253 



striae very fine, the scutellar rather short, fine; outer striae sometimes 

 feebly and irregularly subpunctulate or comminuted; lateral series 

 narrowly interrupted; intervals almost flat, with scarcely visible 

 traces of irregularity. Length (cf 9 ) 6.4-6.7 mm.; width 2.8-3.0 

 mm. California (Truckee). Three examples nexa n. sp. 



Prothorax much less than twice as wide as long, more narrowed ante- 

 riorly, the apex barely two-thirds as wide as the base 1 1 



II Form evenly elongate-elliptical, rather convex, moderately shining, 

 black above and beneath, without metallic lustre; legs black; head 

 not half as wide as the prothorax, with well developed and prom- 

 inent eyes and small linear oblique strides; antennae slender, black, 

 the basal joint obscure rufous; prothorax one-half wider than long, 

 the apex feebly sinuate, with obtuse angles; sides strongly converg- 

 ing, evenly and moderately arcuate from base to apex, very finely 

 reflexed; surface smooth, with obsolete transverse impressions and 

 very fine incomplete median stria, the inner subbasal striole short 

 but distinct, near basal fourth, the outer very short, feeble, poste- 

 riorly oblique; elytra nearly one-half longer than wide, evenly ogivally 

 rounded in about apical third, very slightly wider than the prothorax, 

 the parallel sides broadly, evenly arcuate; striae extremely fine, im- 

 punctate, the seventh obsolete, the scutellar moderate; lateral series 

 rather widely and sharply interrupted; intervals flat or very nearly, 

 not at all irregular. Length (cf) 7.5 mm.; width 3.3 mm. Mexico 

 (Colonia Garcia, Sierra Madre Mts., Chihuahua), Townsend. 



*mora n. sp. 



Form narrowly oblong-suboval, moderately convex, shining, black, the 

 upper surface with faint bronzy lustre; legs not absolutely black; 

 elytra of the female but little less polished than in the male; head 

 small, not quite half as wide as the prothorax, the eyes strongly 

 convex and prominent, the strides very fine, oblique; antennas slen- 

 der, black, the basal joint very obscure rufous; prothorax slightly 

 more than one-half w r ider than long; apex very moderately sinuate, 

 with obtusely blunt angles; sides converging, broadly and subevenly 

 arcuate and very finely though sharply reflexed from base to apex; 

 transverse impressions very feeble, the fine median stria incomplete; 

 inner subbasal striole short and small though distinct, the outer 

 oblique, very feebly impressed or subobsolete; angular puncture 

 more distant from side than base; basal angles sharply right; elytra 

 scarcely one-half longer than wide, barely perceptibly wider than 

 the prothorax, evenly ogivally rounded in about apical third, the 

 parallel sides sharply reflexed and feebly arcuate; striae extremely 

 fine, impunctate, the seventh subobsolete, the scutellar rather long, 

 oblique and faint; lateral series abruptly and somewhat widely inter- 

 rupted; sinus rather broad and shallow. Length (cf 9 ) 5.85-6.0 



mm.; width 2.5 mm. Lake Superior erratica Stm. 







I am by no means sure that the Lake Superior form here identi- 

 fied as the European erratica, is really that species, but it is the one 

 commonly so called. It is very peculiar in the sexual characters 



