228 MEMOIRS ON THE COLEOPTERA 



are said to be perceptibly wider than the pro thorax; in spadiceus 

 it is seldom that the elytra become perceptibly wider than the pro- 

 thorax, and the proportion of width to length of the body given for 

 adstrictus 5.7 to 13 mm. is even greater than in any example of 

 laticollis at hand, showing that adstrictus is very much stouter than 

 the notably narrow and parallel spadiceus or tartareus. 



It is to be regretted that the. philologically defective name Cur- 

 tonotus has to be retained, rather than the substitute Cyrtonotus of 

 more recent authors, but on the principle that generic symbols 

 should not be changed in any way if it can possibly be avoided, it 

 it necessary to employ it in place of the latter. 



Curtonotus sponsor n. sp. Narrow and elongate, moderately convex, 

 black, shining, the under surface and legs brownish-rufous; head fully 

 two-thirds as wide as the prothorax, with unusually large, prominent 

 eyes; antennae ferruginous, fully as long as the head and prothorax, the 

 latter two-fifths wider than long, rather evidently wider at apex than at 

 base, the apical angles broadly rounded; sides strongly rounded, becom- 

 ing parallel and straight for some distance before the basal angles, which 

 are very acute; median stria not attaining the apex; surface only mi- 

 nutely and obsoletely punctulate apically, the concavity within the long 

 strong basal carinae coarsely punctate and having a small, longitudinal 

 anterior impression at some distance from the carina; side margins finely 

 reflexed throughout; elytra two-thirds longer than wide, a fifth wider 

 than the prothorax, parallel, with feebly arcuate sides; striae fine but well 

 impressed, the punctures fine, sometimes scarcely observable, the lateral 

 series of ocellate punctures moderately interrupted ; subapical sinus rather 

 strong. Length (cf) 11.0-11.5 mm.; width 3.8-4.1 mm. California 

 (Siskiyou Co.). Three examples. 



Resembles jacobinus, which I have from San Diego to Alameda, 

 but smaller, narrower and with longer antennae than in the male of 

 that species, less transverse prothorax, which is also punctured 

 apically, and with more obtusely rounded apical angles, very much 

 finer punctures of the finer elytral striae and less widely interrupted 

 series of the eighth. It does not seem to resemble stupidus Lee., 

 from Sacramento, very closely, according to the description. 



Curtonotus concretus n. sp. Elongate, convex, subventricose, shin- 

 ing, black; under surface piceous, the legs dark rufous; head two-thirds 

 as wide as the prothorax, the eyes well developed, prominent; anterior 

 strides narrow, deep; antennae ferruginous, a third longer than the head; 

 prothorax two-fifths wider than long; apex sinuate, with broadly rounded 

 angles and distinctly wider than the base; sides broadly rounded, gradu- 

 ually sinuate basally, where they do not become parallel, the angles 

 acute; surface impunctate anteriorly; basal foveae and carinae nearly as 



