Platynin^ 47 



dilated, feebly grooved medially above. Length (cf 9 ) 9-5 mm.; 



width 3.6-3.7 mm. Washington State aeneolus Lee. 



Upper surface sometimes shining but never with distinct aeneous metallic 

 lustre; sides of the prothorax much more rounded anteriorly; 

 anterior and middle trochanters similarly rufous; tarsi sulcata 



above 3 



3 — Elytra densely opaque, at least in the female 4 



Elytra shining, less so though scarcely opaque in the female 5 



4 — Form rather ventricose, moderately convex, dull black; head slightly 

 elongate, four- fifths as wide as the prothorax; with well developed 

 and moderately prominent eyes and parallel sinuous anterior im- 

 pressions; palpi black, with pale tip, slender; antennae slender, 

 black, the pubescence gray, the third and fourth joints exactly 

 equal; prothorax nearly as long as wide, widest and with the sides 

 most rounded just before the middle, converging and broadly 

 sinuate posteriorly to the right and very sharp angles; margins 

 finely, sharply reflexed, a trifle more so basally; surface like the 

 head, rather shining, the fine transverse rugulae feeble; anterior 

 impression alone evident, shallow; median stria fine, abbreviated 

 as usual; foveae large, broadly concave, rugose, attenuately extended 

 to the middle; base fully as wide as the apex; elytra not quite 

 twice as wide as the prothorax and less than one-half longer than 

 wide, oblong-oval, the sides but little more rounded basally, rather 

 obtuse, with feeble sinus at apex; striae fine, smooth, grooved, not 

 coarser at apex, the intervals perfectly flat; met-episterna twice as 

 long as wide; legs slender. Length (9) 8.3-9.0 mm.; width 3.1- 

 3.6 mm. California (Sta. Barbara and San Diego).. . .funebris Lee. 

 Form slightly broader, the anterior parts relatively larger and heavier; 

 coloration and lustre nearly similar; head but slightly narrower 

 than the prothorax, with much more prominent eyes than in funebris, 

 elongate, with deep anterior impressions; antennae not very slender, 

 slightly less than half as long as the body, the third joint barely 

 longer than the fourth; prothorax slightly wider than long, widest 

 and with more strongly arcuate sides before the middle, the margin 

 finely but sharply reflexed, oblique and broadly sinuate in nearly 

 basal half, the angles slightly more than right, very sharply defined; 

 surface not very shining, with some transverse rugulae, the postero- 

 lateral parts, including the shallow foveae, coarsely and deeply 

 punctato-rugose; elytra oblong-oval, rather convex, smooth and 

 densely opaque, one-half longer than wide, four-fifths wider than 

 the prothorax, the sides arcuate, barely at all more so at base; 

 striae fine, sharply defined and with minute close-set punctulation; 

 intervals perfectly flat, the micro-reticulation strong and con- 

 spicuous; anterior of the three small punctures at the third, the 

 other two at the second, stria. Length (9) 9-3 mm.; width 3.7 

 mm. California (without further record of locality). [Scaphio- 



dactylus opacus Mots.] opacus Mots. 



Form less ventricose than in the two preceding, smaller and more abbrevi- 

 ated, similar in coloration and lustre; head slightly elongate, with 

 prominent eyes, three-fourths as wide as the prothorax, the anterior 



