BYRRHID/E 65 



exceeding the prothorax in width, the sides arcuate. Length (cf ) 

 6.6 mm.; width 3.9 mm. California (coast region north of San 

 Francisco) parvuliceps n. subsp. 



Color black, with feeblest piceous tinge and with very strong polish and 

 feeble subaeneous lustre above, piceous-black beneath, the legs 

 rufo-piceous; form much narrower and more elongate than in chry- 

 somelina, almost evenly oval, the head moderate, with prominent 

 eyes, the antennae long, filiform, ochreous, all the joints much elon- 

 gated; prothorax formed as in chrysomelina, very convex, the punc- 

 tures somewhat stronger; scutellum narrower, more elongate and 

 more acutely ogival, with a very few sparsely scattered and exceed- 

 ingly minute punctules; elytra more elongate, evenly oval, with 

 arcuate sides and less broadly obtuse apex, almost one-half longer 

 than wide, at the middle two-fifths wider than the prothorax, the 

 surface very indefinably uneven and with unusually fine and sparse 

 punctures, the larger punctures toward the sides of the prosternum 

 more widely separated than in the preceding forms. Length (9) 

 8.4 mm.; width 4.8 mm. California (Mt. Diablo).. . elongata n. sp. 



Color always black or feebly picescent above, the under surface but 

 little less deep black, the legs rufo-piceous; body always much smaller 

 than in the preceding species, the lustre strongly shining but without 

 metallic reflection of any kind 3 



3 Oval, very moderately elongate, somewhat piceous-black, the head 

 well developed; antennae evidently shorter than in the preceding 

 forms, more compressed, broader apically and more evidently 

 though very gradually narrowed from apex to the first joint, the tenth 

 barely a fourth longer than wide, ferruginous throughout; prothorax 

 nearly as in chrysomelina, not quite twice as wide as long, similarly 

 punctured but with the similarly converging sides rather less arcu- 

 ate; elytra barely a fourth longer than wide, oblong-oval, with 

 broadly rounded sides, very broadly and obtusely rounded at tip, the 

 sculpture more cribrate, the punctures larger, deeper and rather 

 closer, separated generally by about twice their widths; under 

 surface nearly similar. Length (cf , 9 ) 6.0-8.0 mm.; width 3.8-5.0 

 mm. California (San Francisco and northward). [Amphicyrta 

 deniipes Erichs., 1. c., 1843, IV, p. 40; hybosoroides Mann., Bull. 

 Mosc., 1843, II, p. 287 (Eucyphus Tenebrionidae)]. 



dentipes Erichs. 



Oval, still shorter than in the preceding and deeper black in color, the 

 head notably smaller in relative size, the ochreous antennae much 

 longer, more slender and filiform, nearly as in chrysomelina, only 

 very feebly broadening from the second joint, the penultimate 

 joint about one-half longer than wide; prothorax much shorter than 

 in dentipes, a little more than twice as wide as long, the converging 

 sides very evenly but only just visibly arcuate, the punctures mod- 

 erately small, deep and less separated than usual; scutellum flat, 

 sharply ogival, sparsely punctulate; elytra (9) barely visibly 

 longer than wide, oblong-oval, with rounded sides and very broadly 

 rounded apex, two-fifths wider than the prothorax or (cf) about a 



T. L. Casey, Mem. Col. Ill, Feb. 1912 



