762 Coleopterological Notices, VI. 



California (Los Angeles Co.)- 



A distinct species in its strongly marked sexual characters, 

 sparse and uneven pubescence, polished surface and other charac- 

 ters; it is allied closel}^, however, to denudatus, a peculiar Cali- 

 fornia coast species, and scarcel3' at all to bifasciatus, and is 

 placed in the vicinity of the latter merely to facilitate identifica- 

 tion. The last ventral of the male has a deep rounded median 

 impression. Three specimens. 



!¥. debilitaiis.— Moderately narrow, polished, pale piceous-brown, the 

 elytra blackish, pale at base, obliquely more broadly toward the sides, also in 

 a broad anteriorly arcuate fascia just behind basal third, and, less markedly, 

 in apical fourth; vestiture sparse and rather coarse but short and subdecum- 

 bent, finer, sparser, more decumbent and inconspicuous in the black fascia and 

 at base, ifeorf distinctly narrower than the prothorax; eyes somewhat small ; 

 antennae moderately stout, rather short, sciircely longer than the head and jiro- 

 thorax, the tenth Joint but slightly longer than wide. Prothorax subglobular, 

 slightly wider than long, minutely, remotely punctate throughout, the horn 

 nearly as in spatulifer, — well developed, non-dentellate, broadly and feebly 

 constricted toward base, — but with the concave apical part much more pointed 

 and less broadly rounded. Ebjtra distinctly less than twice as long as wide, 

 about two-thirds wider than the prothorax, the sides parallel, feebly arcuate 

 behind, the apex broadly subtruncate and arcuate in the female, the outer an- 

 gles broadly rounded; disk ^\•ithout impressions, coarsely, sparsely punctate, 

 the erect setae long but very sparse. Abdomen rather sparsely, coarsely pubes- 

 cent. Length 2.5-2.7 mm. ; Avidth 0.8 mm. 



'&■- 



California (San Diego). 



Of this interesting species I obtained four specimens, which 

 are unfortunately all females; the male, however, without doubt 

 has the short oblique subdentate truncature characterizing the 

 allied forms. It forms, with sjmtulifer and denudatus, a very 

 distinct group of small polished and sparsely punctate species, 

 and differs from the first in the shorter elj'tra, less transversely 

 truncate in the female, in the coarser and still sparser punctures 

 of the el3tra, more pointed apex of the pronotal process, shorter 

 antennae and paler coloration, and, from denudatus, in its stouter 

 build, different pattern of elytral ornamentation, less coarse and 

 sparse eh'tral punctures and closer, more decumbent pubescence. 



In denudatus the form of the body is very slender, the elytral 

 punctures remarkably coarse and sparse, the vestiture of the 

 elytra coarse, rather long, very sparse and not closely decumbent, 

 the antennffi long, slender, gradually and distinctly incrassate, 

 with the tenth joint much longer than wide, and the elytra fully 



