American Car.\boidea 177 



Brennus subdepressus n. sp. — Deep black and alutaceous, the elytra 

 more shining though micro-reticulate; head not very narrow though but 

 little more than half as wide as the prothorax; surface smooth, with a 

 few transverse wrinkles centrally; antennae slender, the fifth joint four 

 times as long as wide; prothorax relatively rather large, wider than long, 

 the sides moderately reflexed and strongly circularly rounded, rapidly 

 narrowed behind, becoming parallel in basal fifth or more; base half as 

 wide as the maximum width; transverse impressions distinct, the median 

 stria deep; subbasal longitudinal impressions very feeble; elytra fully 

 one-half longer than wide, just twice as wide as the prothorax, the sides 

 rather rapidly rounding at base, more so than in decipiens; side margins 

 well reflexed; surface with thirteen rather fine but deep and even entire 

 striae, which are rather finely but distinctly punctate; thence to the sides 

 the striae are confused, coarser, deeper and more coarsely punctured, 

 but they are still traceable as striae about five in number; epipleura with a 

 series of punctures near the inner edge; tarsi slender, black, the anterior 

 only slightly dilated in the male. Length (cf ) 17.0 mm.; width 7.8 mm. 

 California (Monterey). A single example. 



The prothorax is relatively larger than in decipiens, where the 

 fifth antennal joint of the male is evidently less than four times 

 as long as wide, the following joints also distinctly shorter than in 

 subdepressus. 



Brennus gentilis Csy., is a species altogether distinct from crenatus 

 Mots., having much less coarse and very much more finely punc- 

 tured striae; in this latter respect it closely resembles decipiens, 

 but the elytral striae are not confused laterally as in the latter 

 and the head and prothorax are both narrower, the sides parallel 

 at base for a shorter distance. The following is allied to gentilis, 

 but is very much smaller and with relatively coarser strice: 



Brennus montereyensis n. sp. — 'Strongly ventricose, convex, black, 

 feebly alutaceous anteriody, the elytra polished; head notably narrow 

 and elongate, only slighdy more than half as wide as the prothorax,, 

 smooth, the anterior impressions deep; antennae piceous, nearly black 

 basally, the fifth joint almost five dmes as long as wide, this and the 

 following joints disdncUy narrower than the fourth; prothorax relatively 

 small, as long as wide, the sides moderately reflexed, subprominent before 

 the middle, rounded anteriorly, oblique and nearly straight thence to 

 the subbasal sinus and, behind this, parallel to the narrowly rounded 

 right basal angles; base half as wide as the maximum width; transverse 

 impressions distinct, the median stria deep; subbasal impressions very 

 faint; elytra oVal, a litde less than one-half longer than wide, the sides 

 evenly rounding, barely at all more so at base, two and one-half times 

 as wide as the prothorax; striae coarse, deeply impressed and strongly 

 punctured about to the moderately reflexed side margins, sixteen in 

 number; anterior male tarsi slender, the first joint densely pubescent 

 T. L. Casey, Mem. Col. IX, Feb. 1920. 



