AMARINJE 277 



with rather prominent eyes and short oblique and lineiform strioles; 

 antennae ferruginous, extending slightly behind the thoracic base; 

 prothorax but little more than a fourth wider than long; apex three- 

 fifths as wide as the base; sides arcuate, becoming gradually parallel 

 behind the middle; basal angles right, the puncture very small; im- 

 pressions obsolescent, the stria fine; punctures of the foveal region 

 small, sparse and few; foveae feebly impressed, the inner sublinear 

 and extending to the base, the outer small, punctiform and more 

 discal; elytra barely perceptibly wider than the prothorax, one-half 

 longer than wide, very gradually ogival behind, the sides just visibly 

 arcuate; humeri minutely denticulate, extending slightly outside the 

 thoracic angles; striae not coarse but deep and distinct, finely punctu- 

 late, the scutellar rather long and free, much disintegrated; inter- 

 vals very nearly flat in the female. Length (9) 6.5 mm.; width 

 2.7 mm. British Columbia (Aldermere), Keen sinuosa n. sp. 



Body oblong-oval, convex, polished, black, the under surface and legs 

 nearly as in the preceding; head just visibly more than half as wide 

 as the prothorax, with the eyes well developed but only moderately 

 prominent, the strioles and antennae somewhat as in sinuosa, the 

 antennae somewhat less pallid, ferruginous; prothorax a third wider 

 than long, just visibly wider behind the middle than at base, the 

 sides evidently arcuate throughout, gradually more converging be- 

 fore the middle; basal angles very slightly more than right, the punc- 

 ture strong, symmetrically placed in the angle; apex three-fourths 

 as wide as the base, deeply sinuate; punctures of the foveal area 

 numerous and strong; inner fovea very broadly, feebly impressed, 

 indefinitely linear, the outer rounded, deep, punctiform and discal; 

 elytra not quite one-half longer than wide, at the middle as wide as 

 the widest part of the prothorax, ogival in apical two-fifths, the sides 

 broadly arcuate, the base exactly equal to the thoracic base; striae 

 fine but deep, very minutely, distantly and indistinctly punctulate, 

 the scutellar long, entire, free at tip; intervals perfectly flat in the 

 female. Length (9 ) 5.65 mm.; width 2.4 mm. A single example 

 from the Levette collection, probably taken in Colorado. 



elusa n. sp. 



4 Form more slender, sides of the prothorax arcuately converging an- 

 teriorly only before the middle. Parallel, convex, polished, piceous- 

 black, with scarcely observable senescence; under surface piceous, 

 the legs rufous; head with relatively large and prominent eyes, the 

 strioles fine, linear and oblique; antennae ferruginous, slender, ex- 

 tending well behind the thoracic base; prothorax a third wider than 

 long, the parallel sides nearly straight behind the middle, except at 

 base, the angles slightly more than right, with symmetrically placed 

 puncture; apex barely three-fifths as wide as the base; punctures of 

 the foveal region rather coarse and numerous; foveae both deeply 

 impressed, rounded and next to the basal margin; elytra about one- 

 half longer than wide, gradually ogival in almost apical two-fifths, 

 very slightly wider than the widest part of the prothorax, the sides 

 but very feebly arcuate; striae deeply impressed but not coarse, very 

 moderately punctate, the scutellar rather long, free and entire; 



