580 Coleopterological Notices, VI. 



thorax, slender and filiform, the penultimate joints slightly wider 

 than long. Prothorax three- fourths wider than long, the sides 

 distinctly convergent and broadly, almost evenly arcuate from 

 base to apex, the edges finely serrulate; basal angles broadly 

 I'ounded and apparently obsolete, the apical obtuse; apex sub- 

 truncate, much narrower than the base which is distinctly arcu- 

 ate; disk minutely and sparsel}' punctate, moderately scabrous 

 rather narrowl}' along the sides, the rugose area abrupt but not 

 limited by an impressed line. Ehtra one-half longer than wide, 

 near apical third slightly wider than at base and about three-fifths 

 wider than the prothorax, the sides nearly straight ; apex obtusely 

 parabolic and very indistinctl}^ and minutel}' serrulate; punc- 

 tures fine, feebly rugose and somewhat close-set. Length 2.0 

 mm. ; width 0.85 mm. 



California (San Diego). The description is drawn from a speci- 

 men which has the apex of the fifth ventral broadly truncate and 

 therefore most probably male, but the antennte are shorter, the 

 head smaller and the sides of the prothorax more convergent 

 than usual in the corresponding sex of allied species. 



12. D. minutus n. sp. — Narrow, siibcylindrical, rather strongly con- 

 vex, the anterior parts smooth and highly polislied, the elytra very ohsoletely 

 suhreticulate but polished; body piceons-black, the elytra and abdomen 

 slightly paler; legs pale testaceous; antennse black, the first joint piceo- the 

 second tlavo-testaceous ; palpi black, the mandibles very pale, blackish at the 

 acute apex; pubescence short, cinereous-white, moderately dense, not at all 

 intermixed with erect hairs. Head three-fourths as wide as the prothorax, 

 slightly transverse, minutely and not very closely punctate, the punctures 

 slightly burred toward base; impressions widely separated and feeble; epi- 

 stoma abruptly thinned and depressed at apex, short and black, the labrum 

 small, broadly rounded; eyes small; antennse rather short, slender, not as 

 long as the head and prothorax, the penultimate joint apparently somewhat 

 transverse. Prothorax large, fully three-fourths wider than long, the sides 

 strongly convergent and feebly, almost evenly arcuate from the broadly 

 rounded and obsolete basal angles to the apex, the latter feebly arcuate, 

 much nan-ower than the base, which is strongly and evenly arcuate through- 

 out; disk tinely, sparsely punctate, coarsely rugose in an unusually narrow 

 marginal area, which is abrupt though feebly delimited. Elytra one-half 

 longer than wide, siibequal in width to the prothorax, just visibly wider near 

 apical third, the apex obtuse; disk finely, feebly and not very closely piinc- 

 tate. Abdomen finely liubescent, the legs slender; ungual appendages about 

 one-half as long as the claws. Length 1.6 mm. ; width 0.65 mm. 



California. 



