68 OTIOKHYNCHID^. 



[Horn. 



discal spot of the el5'tra may become evanescent. The erect hairs are also 

 variable, and assume the color of the surface in which they are placed. 

 Collected at Crjstal Springs, California, b}^ Mr. G. R. Crotch. 



MYLACUS Sch. 



Mylacxis Schon. Gen. Cure, viii, 1, p. 144. 



Rostrum as long as the head and slightly narrower to the tiji which is 

 A'ery feebly emarginate and with smooth space, above broadly but feebly 

 channeled, a feeble transverse impi'cssion at base, alaj feebly prominent. 

 Scrobes superior, very slightly convergent, deep in front, broadly open and 

 ver}^ shallow posteriorly, not attaining the eyes. Antennne modei'ately 

 long, sub-apical, sparsely hairy ; scape gradually clavate, slightl}' arcuate, 

 attaining the anterior margin of thorax ; funicle 7-jointed, joints 1-2 longer, 

 3-7 sub-moniliform, club oval. Thorax cylindrical, short, transverse. 

 Scutellum wanting. Elytra globoso-oval. Metasternum very short, side 

 pieces entirely covered posteriorly by the elytra. Hind coxae open exteri- 

 orly attaining the elytral margin. Intercoxal process of abdomen very 

 broad, truncate ; first segment deeply emarginate by the coxae and very 

 short behind them ; second abdominal segment very little longer than the 

 third separated from the first by an arcuate sutui'e. Tibiae not mucronate. 

 Claws almost eutirely connate. Body pubescent. 



M. saceatus Lee. (Plochus) Pacif. R. R. Rep. App. 1, p. 56. 



Form oval, color black, shining, surface sparsely clothed with short cine- 

 reous pubesence. Head and rostrum one and a-half times longer than the 

 thorax, moderatelj' densely punctured, sparsely pubescent. Thorax trans- 

 verse, twice as broad as long, sides feebly arcuate, apex and base truncate, 

 disc convex, surface densely and at the sides confluently punctured, surface 

 sparsely pubescent. Elytra broadly oval J^ or globoso-oval 9 , with striae 

 of coarse punctures ratlier closely placed. Body beneath black, shining, 

 metasternum densely punctured at the sides, abdomen smoother, more 

 shining, surface sparsely pubescent. Legs black, sparsely pubescent. 

 Length .12-. 16 inch ; 3-4 mm. 



The hind tibiae of the males have at the tip of the hind tibia? immedi- 

 ately in front of the tarsal articulation a very feeble emargination, the 

 female has two small fixed spurs. 



There can be little doubt that this species should be referred to Mylacits. 

 The characters given in the table supplemented by those above given will 

 serve to distinguish it from all others in our fauna. 



Occurs in California and Oregon. 



THRICOLEPIS n. g. 



Rostrum nearly as long as the head, slightly narrower towards the tip 

 which is feebly emarginate, ate not divergent. Scrobes superior, short, 

 terminal, cavernous, somewhat renifoi'm in shape and convergent above. 

 Antennae moderate, sub-terminal, scape feebly arcuate, attaining the mar- 

 gin of the thorax ; funicle 7-jointed, longer than the scape, first two joints 



