198 MEMOIRS ON THE COLEOPTERA 



spaced, the usual discal puncture not visible; abdomen very finely, 

 sparsely punctate throughout; hind tarsi rather stout, the first 

 joint not quite as long as the next two together and about equal in 

 length to the fifth, the hind tibial spurs slender and finely pointed. 

 Length (c? 1 9 ) 7.5-10.0 mm.; width 2.8-3.7 mm - California 

 (middle coast region). Abundant. [D. hirsutus Menet.]. 



dilatatus Dej. 



Body narrower, still more depressed and smaller in size, black, the edges 

 of the pronotum finely pale, the under surface deep black, the legs 

 short, bright testaceous; hairs borne by the dorsal punctures very 

 short, stiff and erect; head nearly as in the preceding but about 

 two-thirds as wide as the prothorax, rather closely and moderately 

 coarsely punctate, with a large central area virtually impunctate; 

 antennae moderately long, testaceous, notably stout and gradually 

 darker basally; epistoma with a single puncture at each angle; 

 prothorax a third wider than long, the sides rounded, gradually rather 

 strongly converging and becoming nearly straight basally, the angles 

 very obtuse but not evidently rounded; base transverse, rounding 

 laterally, fully as wide as the broadly and moderately sinuate apex; 

 surface rather depressed, with moderately coarse sparse and some- 

 what unevenly distributed punctures throughout, the latero-basal 

 area somewhat strongly depressed and foveiform; side margins very 

 evenly and finely reflexed from apex to base; elytra in outline nearly 

 as in the preceding, very broadly, circularly rounded at apex, 

 without sinus and nearly a third wider than the prothorax, the 

 strise fine, the nearly flat interspaces with the series composed of 

 rather small punctures, which are usually not very close-set and in 

 general quite uneven in spacing; abdomen finely but rather strongly, 

 not very sparsely punctulate; spurs of the hind tibiae slender and 

 pointed but rather short, the hind tarsi more slender than in the 

 preceding, the basal joint shorter than the next two and barely 

 two-thirds as long as the fifth. Male with the anterior tarsi dilated, 

 densely pubescent beneath, the middle tarsi completely undilated 

 and without trace of pubescence beneath. Length (cf) 7-8 mm.; 

 width 2.9 mm. California (LakeTahoe) brevisetosus n. sp. 



6 Body similar in form to dilatatus but smaller and with the hind angles of 

 the prothorax quite distinct, though not prominent, and the surface 

 more densely punctured; prothorax beneath with but few coarse 

 punctures and these not deep; hairs arising from all the punctures of 

 the upper surface short and erect, the punctures of the elytra! 

 interstitial series regularly and closely placed; middle tarsi of the 

 male with joints 2-4 pubescent beneath. Length 7.5 mm. Cali- 

 fornia (San Jose). Not at all common obtusus Lee. 



Body rather narrow, elongate, piceous, feebly shining, pubescent, the 

 legs rufous; head very coarsely and deeply punctured and with long 

 hairs, the epistoma with two larger setigerous punctures at each 

 angle; prothorax a little wider than long, narrowed behind, the sides 

 arcuate anteriorly, oblique posteriorly; hind angles distinct but 

 not prominent; base slightly arcuate at each side; surface moderately 

 convex, coarsely and deeply punctured, the punctures regularly 



