REVISION OF TFNEBRIONID SUBFAMILY CONIONTIN^E 69 



sparsely punctate at the sides, nearly smooth medially; elytra 

 with very fine punctures, very remotely placed ; epipleurte grad- 

 ually wider from apex to base; prosternum coarsely punctured in 

 front, the process margined throughout; abdomen very sparsely 

 and finely punctulate. Length 10. o mm. California (Sta. 

 Barbara) politus Horn 



Elytral surface more or less uneven 10 



10 — Prosternal process margined throughout 11 



Prosternal process without trace of marginal bead, except basally 

 along the acetabula ; elytra with irregular impunctate lines as in 

 producttis 13 



11 — Prothorax very broadly emarginate at apex, the sinus transversely 



rectilinear medially. Body in form and size nearly as in dijfficilis 

 Lee, oval, feebly shining; head finely punctate, the clypeus 

 broadly emarginate, rounded at the sides, the margin narrowly 

 reflexed ; prothorax with the apical angles very obtuse, the basal 

 comparatively short and obtuse, the sides finely margined, the 

 surface narrowly and feebly impressed along the margin, broadly 

 rounded and converging before the middle, subparallel behind the 

 middle; disk alutaceous, sparsely and finely punctate; elytra at 

 the base slightly wider than the prothorax, without lateral margin, 

 feebly carinate, the surface alutaceous, with small sparse submu- 

 ricate granules; epipleurte gradually wider to the base, sparsely 

 punctate and hairy ; prosternum sparsely punctate, the process 

 narrowly oval at tip ; abdomen sparsely punctate ; legs with short 

 sparse setae. Length ii.o— 11.5 mm, ; width 6.0 mm. California 

 (Los Angeles Co.) coquilletti Linell 



Prothorax moi"e narrowly, deeply and circularly emarginate at tip, 

 with the apical angles more acute and narrowly rounded, the 

 basal angles more posteriorly produced and acute, more evidently 

 embracing the humeri, the sides evenly converging from the base, 

 evenly and broadly arcuate; scutellum rather more evident than 

 usual; elytra with more or less evident ridges which are scarcely 

 less punctate than other parts of the surface 12 



13 — Form broadly oblong-oval, moderately convex, deep black, sub- 

 glabrous above, ciliate at the sides, the femora with short and 

 stiffer hairs; upper surface opaque (d^) or moderately shining 

 (9); head rather strongly, moderately sparsely punctate, the 

 clypeus rather feebly reflexed, sinuate at the middle, the lateral 

 incisures obsolete ; prothorax scarcely two and one-half times as 

 wide as its median length, convex, moderately widely declivo- 

 explanate at the sides, with the marginal bead fine but elevated, 

 the punctures small but distinct, only moderately sparse, becom- 

 ing rather coarse but well separated and minutely setigerous later- 

 ally; elytra barely longer than wide, the marginal line obtusely 

 protuberant at tip, equal in width to the prothorax in both sexes, 

 the sides feebly arcuate, the surface rugose, rather coarsely, evenly 



