6o Memoirs on the Coleoptera 



striae not definitely micro-punctulate; third interval with five or 

 six rather distinct punctures; epipleura piceo-rufous; tarsi long 

 and slender. Length (9) 8.0 mm.; width 3.1 mm. Nevada 

 (Reno). One example, taken by the writer solutus n. sp. 



Elytra gradually rounding behind, with more oblique and very shallow 

 sinus, the striae nearly as fine but with feebly convex intervals, the 

 third similarly with five or six punctures il 



II — Sides of the prothorax more evidently rounded before the middle; 

 legs very slender; body narrower in outline, moderately shining, 

 almost imperceptibly alutaceous, black or piceous-black, without 

 trace of metallic lustre; legs obscure testaceous, the femora pale 

 rufo-flavate, feebly shaded toward the knees; head nearly as in the 

 preceding but without the frontal foveae and with more prominent 

 eyes; antennae black, with the basal joint in great part pale, more 

 than half as long as the body, the third joint shorter than the fourth; 

 palpi piceous, slender; prothorax a fourth wider than long; sides 

 very finely reflexed; base fully as wide as the moderately sinuate 

 apex, arcuate laterally; apical angles finely blunt at tip; surface 

 nearly smooth throughout; anterior impression close to the margin 

 and distinct, the stria fine; foveae finely, deeply impressed, oblique 

 outwardly anteriad and extending about to the middle, smooth, the 

 surface thence to the sides with some ruguliform punctulation; 

 elytra three-fifths longer than wide, not quite twice as wide as the 

 prothorax, the parallel and moderately arcuate sides rapidly round- 

 ing at the humeri; striae with the punctulation close but extremely 

 minute; intervals not quite flat; hind tarsi very slender, the groove 

 on the inner side coarser and more dorsal than the outer sulcus; 

 anterior male tarsi very moderately dilated. Length (cf ) 7.5 mm.; 

 width 2.65 mm. California (San Joaquin Co.) impictus n. sp. 



Sides of the prothorax as in impictus, well rounded before the middle but 

 becoming feebly sinuate before the basal angles, which are obtuse 

 though with sharply defined and subprominent tips; body deep 

 black, rather more convex than the preceding or calif ornicus, the 

 elytra with very faint violaceous lustre, not visible in either of those 

 species; legs obscure rufous, the femora somewhat paler; head 

 fully three-fourths as wide as the prothorax, with notably prominent 

 eyes; antennae slightly more than half as long as the body, rather 

 less slender, black, the basal joint testaceous beneath, piceous above, 

 the third shorter than the fourth; prothorax rather shorter than in 

 impictus or calif ornicus, fully a third wider than long; base fully as 

 wide as the apex, rapidly arcuate and oblique at the sides; margins 

 very finely reflexed, slightly more so at the basal angles; surface 

 smooth, the foveal region with a few punctures, the foveae linear, 

 rather deep, traceable nearly to the middle; elytra somewhat over 

 one-half longer than wide, four-fifths wider than the prothorax, 

 gradually obtusely rounded behind, the sinus feeble; surface with 

 greenish lustre along the sides; striae fine, with scarcely perceptible 

 micro-punctulation; intervals flat, the third with five small punc- 

 tures; anterior male tarsi narrowly dilated. Length (cf ) 7.3 mm.; 

 width 2.7 mm. Idaho (Priest River), — Wickham.. . .irruptus n. sp. 



