156 MEMOIRS ON THE COLEOPTERA 



from the moderately rounded basal angles to beyond the middle, then 

 rounding and more converging to the short but sharp apical angles; 

 basal bead distinct, obliterated medially; punctures fine, very sparse, 

 becoming stronger and closer only very near the sides; scutellum 

 ogival, sparsely punctulate; elytra less than one-half longer than wide, 

 nearly two-fifths wider than the prothorax, the parallel sides arcuate; 

 apex rapidly and very obtusely rounded; punctures small, sparse, 

 feebly impressed, in irregular unimpressed series, the confused 

 punctures of the second interval becoming narrowly aggregated 

 along the middle except basally; pygidium scabriculate, having 

 numerous hairs basally; hind tarsi a little longer than the tibiae. 

 Length (cf ) 13.0 mm.; width 6.7 mm. California, .obesula n. sp. 



Head (cf) larger, generally more than half as wide as the prothorax; 

 body more or less stout in form 9 



9 Elytral sculpture as in the preceding, the punctures fine and sparse, 

 feebly impressed though distinct, broadly confused throughout the 

 length of the second interval 10 



Elytral sculpture different, rugose suturally and with several feebly 

 impressed lines, of which one near outer third for some distance 

 behind the middle is especially noticeable; punctures everywhere 

 so minute and sparse as to be scarcely discoverable; body larger than 

 in any other species 1 1 



10 Form very stout, convex, shining, pale red-brown, the elytra more 

 flavate; head black, the punctures rather close-set, the front rufescent 

 and coarsely rugose; eyes separated by much more than twice their 

 width; clypeus trapezoidal and one-half wider than long, the sides 

 nearly straight, the apex strongly reflexed; surface coarsely, deeply 

 punctato-rugose, the sides not reflexed but with the usual bead; 

 median line not or scarcely impressed; suture fine but deep and very 

 distinct, entire, broadly sinuate medially; antennal club longer than 

 the stem; prothorax barely three-fifths wider than long, the sides 

 parallel and nearly straight, arcuate and converging beyond the 

 middle; basal angles unusually narrowly rounded; basal bead very 

 feeble and flat, broadly obliterated medially; punctures minute and 

 very remote medially, gradually more distinct though still sparse 

 laterad; scutellum with rounded sides and very obtuse apex, very 

 feebly, sparsely punctulate; elytra two-fifths longer than wide, two- 

 fifths wider than the prothorax, obtusely rounded at apex, the 

 punctures widely separated, in general serial, and, broadly toward 

 the sides, becoming rather large, deeply impressed and conspicuous, 

 the lustre more shining than in most of the preceding species; sternal 

 pubescence rather long and abundant; sparse hairs of the abdomen 

 unusually long and fine; hind tarsi about a fourth longer than the 

 tibiae. Length (cf) 13.2 mm.; width 6.5 mm. California (San 

 Diego), Ricksecker oblongula n. sp. 



Form less stout, more oval, convex, rather shining, the color as in the 

 preceding; head (cf ) distinctly more than half as wide as the pro- 

 thorax, strongly, closely and anteriorly coalescently punctate, more 

 finely but rather closely basally, with a smoother spot at the middle 

 of the vertex, deep black, this color extending onto the base of the 



