AMARIN/E 263 



wider than long, the sides evenly arcuate, sharply reflexed at the 

 edge; apex distinctly sinuate, three-fourths as wide as the base, the 

 angles broadly blunt (cf), or narrowly (9 ); transverse impressions 

 feeble, the stria impressed, abbreviated; surface declivously sub- 

 explanate posteriorly to the obtuse elevated area outside the outer 

 fovea; foveal region with some moderate punctures; foveae broadly, 

 feebly impressed, the outer attaining the base; elytra two-fifths (9 ) 

 to nearly one-half (cf ) longer than wide, rapidly and very obtusely 

 ogival at tip, a fourth wider than the prothorax, the sides broadly 

 arcuate; striae rather fine but groove-like, almost impunctate, the 

 scutellar long, oblique, not free; lateral series very widely separated 

 medially. Male with a close pair of punctures at each side of the 

 abdominal apex, a widely separated pair in the female. Length 

 (a 71 9 ) 7.3-7.8 mm.; width 3.2-3.3 mm. California (Yreka and in 

 Siskiyou Co.), Levette and Koebele definita h. sp. 



Body not quite so stout, dark castaneous, shining, the under surface 

 rufous, the legs flavo-rufous; elytra of the female but slightly alu- 

 taceous; head evidently more than half as wide as the prothorax; 

 eyes very moderately convex, the strioles distinct, linear, oblique; 

 antennae rather long, slender, ferruginous, extending well behind 

 the thoracic base; prothorax one-half wider than long, the sides 

 evenly rounded and sharply reflexed; apex more than three-fourths as 

 wide as the base, distinctly sinuate, the angles moderately blunt 

 and prominent; transverse impressions subobsolete, the stria fine, 

 subentire; surface laterally less distinctly declivously explanate than 

 in the preceding, the oblique elevation along the outer fovea rather 

 less pronounced; punctures of the foveal region few and fine; foveae 

 moderate, rather deeply impressed, the inner sublinear, the outer 

 broader, attaining the base; elytra two-fifths longer than wide to 

 but little more, about a fifth wider than the prothorax, the general 

 form as in the preceding, the surface much more shining in the fe- 

 male; striae never more than very obsoletely punctulate, the scu- 

 tellar as in definita; intervals flat (9), or distinctly convex, espe- 

 cially toward the suture (cf); lateral series entire. Male with two 

 close pairs of apical abdominal punctures as in the preceding. 

 Length (d 71 9 ) 6.8-7.9 mm.; width 3.2-3.5 mm. Utah. Four ex- 

 amples obligata n. sp. 



12 Sides of the pronotum somewhat recalling the preceding section, 

 gradually and feebly declivous but without a distinctly marked lim- 

 itation of the depression. Body very broad, oblong-suboval, rather 

 strongly convex, highly polished throughout in both sexes and deep 

 black, with barely observable senescence, the sides of the pronotum 

 posteriorly slightly diaphanous and rufescent; under surface piceous- 

 black, the epipleura feebly rufescent, the legs rufous; head not dis- 

 tinctly more than half as wide as the prothorax; eyes prominent, 

 the strioles rather long, fine and oblique; antennae piceo-ferruginous, 

 the first two joints and most of the third paler, testaceous, much 

 shorter than the thoracic width in the female; prothorax shorter 

 and broader than in any other species and less narrowed at apex, 

 almost twice as wide as long, the sides feebly converging, evenly 



