294 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Color piceous-black, becoming more brownish on head and antennae, the 

 thickened apical portion of the second segment shading to darker piceous ; 

 fourth segment white with only the tip dusky. Lines of silvery hairs on the 

 scutellum and elytra more slender than in the allied forms, the posterior 

 straight and entire, not dislocated on claval suture. Membrane paler than 

 in the allied forms, with a broad fuscous lunule at apex of the larger 

 areole. 



Described from a male from Glen Echo, Md., July 20, a 

 female from Washington, D. C, June 15, both taken by the 

 late Otto Heidemann and determined by him as "PilopJwnts 

 crassipes Uhl. MS.", and a female taken by myself at Riverton, 

 N. J., August 17, 1902. Most of my material in both this 

 species and the next, including specimens determined by Dr. 

 Uhler, was sent to Dr. Renter for study but a short time before 

 his death and has never found its way back to me. These 

 species however are very distinct and can safely be described 

 from scant material. Both were listed by Heidemann in 1892 

 (Proc. Ent. Soc. Wash., ii, p. 225), but his comparative notes 

 do not form a proper description of the species. P. crassipes 

 is common on pine throughout the east. 



Holotype, female, from Wash., D. C, and allotype, male, 

 from Glen Echo, in collection of the author. Paratype in col- 

 lection of the California Academy of Sciences. 



24. Pilophorus laetus, new species 



Size and aspect of discretus but very distinct from all our 

 other species by the abruptly clavate second antennal segment. 

 Length 3^ mm. 



Head large ; viewed from before broadly rounded at apex with the 

 narrow pointed clypeus projecting a little below the cheeks. Face convex ; 

 vertex with a median sulcus, scarcely depressed at base, the hind edge 

 very slenderly carinate. Sides of the head strongly, obtusely carinate be- 

 yond the eyes. Antennae slender; the apical one third of second segment 

 abruptly, strongly clavate. Rostrum reaching the hind coxae, the first seg- 

 ment hardly attaining the base of the head. Pronotum short, sides parallel 

 anteriorly, the humeri angularly produced but not wider than the head 

 across the eyes. Elytra much expanded at apex ; anterior silvery line 

 oblique, posterior interrupted from the cubital vein almost to the claval 

 suture, not dislocated on clavus; Apex of the clavus and corium beyond this 

 line for their whole width and the cuneus polished, the latter with a silvery 

 point at its inner angle. 



'Color piceous or more or less castaneous, becoming paler on the head 

 antennae and legs. Club of second antennal segment piceous, preceded by 

 a paler space; third segment white, fuscous at tip, (fourth segment want- 

 ing). Base of elytra bright cinnamon as in amoenus. Membrane a little: 



