Platynin.e 95 



anterior impressions very small; eyes well developed but only 

 moderately prominent; antenna? slender, about half as long as the 

 body; prothorax fully one-half wider than long, the sides sub- 

 evenly rounded and finely reflexed, a little straighter and more 

 reflexed basally; base as wide as the moderately sinuate apex, 

 obliquely rounded at the sides, not margined; surface feebly convex, 

 shining, opaque laterally, the sculpture very fine; anterior im- 

 pression evident medially, the stria rather deep and impressed; 

 fove« as in the preceding section, large, feebly and indefinitely 

 depressed; elytra one-half longer than wide, nearly three-fifths 

 wider than the prothorax, parallel, with slightly arcuate sides, 

 rapidly rounding at base; apex rather abruptly obtuse, with moder- 

 ately oblique and rather long but very shallow sinus and rounded 

 sutural tips; stri^ fine, slightly impressed, somewhat irregular 

 laterally; intervals equal, slightly convex; dorsal punctures very 

 large, deeply concave and conspicuous, four in number, somewhat 

 irregularly spaced. Length (cf 9) 4-3-5-0 mm.; width i.5-i-^5 

 mm. Michigan (Marquette), Idaho, Washington State and British 

 Columbia (Skeena River). Rather abundant. [PL stigmosus Lee; 

 octocolus Mann.] quadripunctata Dej. 



Prothorax more parallel, with obsolete and broadly rounded basal angles 

 though, similarly, having the posterior marginal puncture on the 

 edge and marking the position of the angle; body of paler coloration 

 than elsewhere in the genus and inhabiting the more southern 

 Pacific coast regions -6 



6 — Form oblong-oval, moderately convex, shining, black, the anterior 

 parts with feeble aeneous lustre, the elytra and epipleura ochreous- 

 brown, the former paler toward the sides, the legs pale, with black 

 tarsi; head barely visibly longer than wide, distinctly narrower 

 than the prothorax, with well developed but only very moderately 

 prominent eyes, the anterior impressions rather short and feeble; 

 antennae not very slender, half as long as the body, piceous, the 

 first joint paler, the third and fourth equal; prothorax two-fifths 

 wider than long, parallel, the sides subevenly and moderately arcu- 

 ate and finely reflexed, thicker about the basal angles; base arcuate, 

 scarcely as wide as the feebly sinuate apex having rather blunt 

 angles; surface polished and smooth, having some feeble transverse 

 ruguliform lines, the large and feebly concave foveae rather more 

 opaculate; impressions barely traceable, the stria very fine, not 

 entire; elytra oblong-suboval, one-half longer than wide, four-fifths 

 wider than the prothorax, the sides moderately arcuate, gradually 

 more strongly so at base, the sinuate basal margin making a some- 

 what blunt advanced angle with the side margin; apex gradually 

 rounded, the sinus short and very feeble; striae extremely fine, 

 smooth, the intervals perfectly flat, the third with six rather coarse 

 impressed foveiform punctures, not however quite so large as in the 

 preceding species; met-episterna about twice as long as wide; 

 tarsi very slender. Length (cf 9) 5.8-6.2 mm.; width 2.0-2.25 

 mm. California (Monterey to Humboldt Co.). Rather abundant. 

 [Ag. limbatum Mots.] variolata Lee. 



