1 66 Memoirs on the Coleoptera 



sculptured; antennae as long as the head and pro thorax, the long 

 pubescent patches as usual; prothorax rather small, two-thirds 

 wider than long, widest near apical third, where the sides are some- 

 what strongly rounded, thence rather strongly oblique and nearly 

 straight to the angles, which are well produced and unusually 

 narrow, strongly rounded at tip; margins somewhat broadly and 

 strongly reflexed and subequally so throughout; punctures rather 

 small but deep, well separated, coarse peripherally, barely at all 

 so at apex, where the bead is very broad and notably flat; surface 

 postero-laterally gradually declivous toward the lobiform angles, 

 there being no distinct impressed fovea; elytra oval, with sub- 

 parallel and strongly arcuate, sharply reflexed thin sides and gradu- 

 ally subparabolic apex, not quite a third longer than wide, one- 

 half wider than the prothorax, the dividing longitudinal striiform 

 lines rather deep. Length (cf) 13. 5-14. 3 mm.; width 6.3-6.7 mm. 

 California (Placer Co.). Three examples exaratus Csy. 



Tegulae flatter and subquadrate, rather more widely separated through- 

 out than in either of the two preceding. Body more strongly convex 

 and more ventricose, deep black, rather shining; head fully four- 

 sevenths as wide as the prothorax, the eyes moderately prominent; 

 surface sparsely but somewhat strongly punctate and with some 

 short fine impressed lines, moderately biimpressed anteriorly, the 

 impressions rather coarsely and more closely punctate, the antero- 

 medial surface smooth; epistoma nearly as in the preceding; man- 

 dibles unusually small, very feebly, sparsely sculptured; antennae 

 short as usual, the fifth joint with a triangular and apical, densely 

 pubescent area as in succeeding joints but less developed; prothorax 

 only two-thirds wider than long, widest somewhat before the middle, 

 but with the sides very evenly arcuate from apex to base, in a manner 

 notably differing from any of the allied species, equally and moder- 

 ately reflexed at the edge throughout, the angles moderately pro- 

 duced and more broadly rounded than in any of the allied species; 

 surface with fine and well separated punctures and fine lines, coarsely, 

 densely rugose laterally but not basally, the stria distinct, entire; 

 foveae subobsolete, very faintly impressed; scutellum smaller than 

 usual, very short; elytra between a third and fourth longer than 

 wide, three-sevenths wider than the prothorax, oval, with rounded 

 sides and obtusely ogival apex; tegulae subquadrate, very moder- 

 ately convex, having the form of well separated granules at the 

 sides, becoming closer apically, the intervening spaces opaculate; 

 striae rather evenly continuous, fine, not at all punctate; hind tarsi 

 much shorter than the tibiae. Length (9 ) 16.0 mm.; width 6.9 mm. 

 Utah (Stockton), — Spalding semotus n. sp. 



4 — Tegulae flatter, only very slightly convex, more oblong in form and 

 subcontiguous 5 



Tegulae well separated laterally, more convex and more graniform 

 throughout 7 



5- — Head in apical half, except at the sides, nearly smooth, the remainder 

 of its surface with rather coarse, close-set and evenly distributed 

 punctures; body smaller in size. Black throughout, rather shining. 



