242 CALIFORNIA ACADEMY OF SCIENCES. [86] 



P, binotatum n- sp. — Rather robust; body and legs throughout dark rufo- 

 testaceous; head, abdomen, and under surface except the prostemum, black; 

 elytra and hypomera rather paler and more luteous; each elytron having a 

 median apical spot of piceous-black, clearly limited and very distinct ; antennae 

 piceous-black, three basal joints abruptly pale testaceous; palpi and man- 

 dibles same; head and prothorax alutaceous, remainder shining; pronotuin 

 almost glabrous; elytra and abdomen finely and very sparsely pubescent, 

 the latter toward the sides only. Head slightly longer than wide, depressed, 

 neady flat, transversely and feebly impressed between the antennas, finely, 

 not deeply and obliquely bistriate between the eyes; surface finely and 

 strongly granulose and subrugulose, impunctate; antennas scarcely two-fifths 

 as long as the body, very slightly flattened and incrassate toward tip; joints 

 one, and three to seven nearly equal in length and one-half longer than the 

 second; joints seven to ten rather rapidly decreasing in length, the latter 

 one-fourth longer than wide. Prothorax anteriorly as wide as the head, 

 wide.-t in the middle, about one-fourth wider than long; sides parallel, evenly 

 and moderately arcuate throughout; apical augles rather narrowly rounded, 

 basal very broadly so; apex and base equal in width, the former broadly and 

 distinctly sinuate throughout, the latter very feebly and broadly sinuate 

 in the middle; disk very broadly and very moderately convex, narrowly 

 and obsoletely impressed along the middle, broadly and very feebly so near 

 the scutellum, narrowly and abruptly explanate anteriorly at the sides, 

 more broadly and gradually so thence to the base, finely and strongly retic" 

 ulate, excessively minutely, sparsely and feebly punctate except near the 

 sides and especially along the base, where the punctures are closer, larger 

 and deeper. Elytra at base as wide as the pronotuin; sides feebly though 

 distinctly divergent; apical angles moderately broadly rounded; together 

 transversely truncate behind; disk depressed, about as long as wide, two- 

 thirds longer than the pronotuin, finely margined along the suture, rather 

 coarsely, strongly, evenly and rather sparsely punctate. Abdomen about 

 as wide as, and slightly shorter than, the elytra; sides convergent and 

 strongly and evenly arcuate to the vertex; border rather narrow and feebly 

 inclined, finely and densely punctate; surface broadly polished and impunc- 

 tate in the middle. Legs slender. Length 4.7 mm. 



California; (Marin Co. 1). Mr. Harford. 



In the type of this very interesting species the middle 

 tibiae are broadly and strongly emarginate interiorly at 

 one-third the length from the apex, the others being per- 

 fectly entire. 



P. modestum "• sp. — Moderately slender; head and abdomen black; pro- 

 notuin, except the lateral limbs, narrowly, and a short basal margin, antenna 

 toward tip, and elytra, dark blackish-castaneous, the latter having on each 

 side near the humeri a small, very indefinite spot of slightly paler tint; an- 



