TENEBRIONID.E 151 



the punctures conspicuous; antennae as long as the prothorax (cf) 

 or materially shorter ( 9 ) ; prothorax fully three-fifths wider than 

 long, widest at the middle, the sides strongly arcuate, rather more 

 convergent and straighter basally than apically, the apex broadly, 

 feebly sinuate and generally feebly, angularly prominent at the 

 middle of the sinus, the angles blunt though slightly everted; base 

 about as wide as the apex, the angles very obtuse and somewhat 

 blunt, not bordered internally by a basal sinus; surface broadly, 

 evenly convex, feebly flattened medially at base, rather shining, 

 finely but deeply, sparsely punctate, the sides rather abruptly very 

 narrowly explanate and more coarsely but not densely or rugosely 

 punctate, the edge with a narrow convex bead; elytra as wide as the 

 prothorax (cf ) or a little wider (9 ), twice as long as wide, widest 

 at the middle, the sides rather distinct and bluntly acute basally, 

 evenly arcuate, the large apical lobe very feebly delimited; ends of 

 the basal margin parallel and slightly tumid but not at all dentiform; 

 surface very convex, sparsely creased, minutely, sparsely punctate, 

 even; abdomen shining, finely creased and minutely punctate; legs 

 only moderate, slender. Length (cf, 9) 16.0-17.5 mm.; width 

 6.5-7.0 mm. California (south of San Francisco and at Monterey), 



G. W. Dunn maritimus n. sp. 



A Similar to the preceding but narrower and still more convex, almost 

 circular in section, the head with the coarse deep punctures very 

 dense and subconfluent before, well separated behind, the im- 

 pression; prothorax less transverse, barely one-half wider than 

 long, widest slightly behind the middle, the sides broadly rounded 

 and arcuate to the basal angles, which are still more obtuse, 

 rounded and almost obliterated; surface similar but still more 

 abruptly and narrowly concavo-explanate laterally, with finer 

 subcrenulate marginal bead; elytra much more than twice as long 

 as wide, similarly rather shining, even, finely and obsoletely 

 creased and very minutely, remotely punctulate but with the 

 margins basally scarcely so definite; legs and tarsi still shorter. 

 Length (9) 17-5 mm.; width 6.7 mm. California (south of San 



Francisco), G. W. Dunn imulus n. subsp. 



Body very slender, not quite so convex, more highly polished, deep black; 

 head alutaceous, more feebly impressed, the coarse deep punctures 

 rather close-set throughout, the fine ones distinct; prothorax one- 

 half wider than long, the apex very feebly sinuate, with the angles 

 bluntly rounded and not sensibly everted, as wide as the base, which 

 is almost evenly arcuate from side to side, the angles very obtuse 

 though evident; sides parallel, very evenly and strongly arcuate 

 throughout; surface nearly as in maritimus, shining, the fine sparse 

 punctures still more perforate and distinct, the sides less narrowly 

 explanate, strongly but not closely punctate, the marginal bead 

 much finer, elytra much more than twice as long as wide, about equal 

 in width to the prothorax, nearly as in maritimus but more polished, 

 the side margins basally very much more compressed, being really 

 acute and coarsely, feebly crenulate; abdomen alutaceous, finely, 



