762 Goleopterologieal Notices, VI. 



California (Los Angeles Co.). 



A distinct species in its strongl}- marked sexual characters, 

 sparse and uneven pubescence, polished surface and other charac- 

 ters; it is allied closely, however, to denudatus, a peculiar Cali- 

 fornia coast species, and scarcely at all to bifasciatus, and is 

 placed in the vicinit}' of the latter merely to facilitate identifica- 

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

 impression. Three specimens. 



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

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

 a broad anteriorlj' ai'Ciiate fascia just behind basal third, and, less markedly, 

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

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

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

 antennae moderately stout, rather short, sciircely lonp;er than the head and pi'O- 

 thorax, the tenth joint but slightly longer than wide. Proihornx subglobular, 

 slightly wider than long, minutely, remotelj' punctate throughout, the horn 

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

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

 and less broadly rounded. Elytra 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 without imjjressions, coarsely, sparsely punctate, 

 the erect sctic long but very sparse. Atxlomen rather sparsely, coarselj' pubes- 

 cent. Leng-th 2.5-2.7 mm.; width 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 spatulifer and deuudafiis, a ver^- 

 distinct group of small polished and sparsely punctate species, 

 and differs from the first in the shorter elytra, less transversely 

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

 of the elytra, more ])ointed apex of the pronotal process, shorter 

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

 build, different ])attern of elytral ornamentation, less coarse and 

 sparse elytral 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 closel}' decumbent, 

 the antenn;\i long, slender, gradually and distinctl3' incrassate, 

 with the tenth joint much longer than wide, and the elytra full^' 



