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



the second antennal segment pale. In one example the callosities are black 

 and another has the pronotum entirely red and the black vitta on the 

 elytra so reduced that it covers only a portion of the clavus and a small 

 spot on the inner angle of the corium. 



Described from two male and two female examples taken 

 by Mr. Giffard at Seattle, Wash., July 7, 1917. I would be 

 inclined to consider this a deeply colored form of rapidus 

 were it not that the rostrum reaches only to the apex of the 

 middle coxse instead of past the posterior. In three examples 

 the tip of the cuneus is black. It is possible that both this 

 and superhus are geographical races or subspecies of rapidus. 



Holotype (No. 336), male, in collection of the California 

 Academy of Sciences. 



Allotype and paratypes, in collection of Mr. W. M. Giffard. 



93. Stcnotus biuotatits (Fabr.). Portland, Oreg., July 5, 

 1917, apparently common. 



94. Irhisia sericaus (Stal). Portola Valley, San Mateo 

 Co., May 5, 1917; Santa Cruz Co., 600 feet, June 9, 1917; 

 Dublin Canyon, May 6, 1917. 



A variety with red legs was taken by Mr. Giffard on the 

 Tunnel Road in Alameda Co., May 13, 1917; in Dublin 

 Canyon, May 6, 1917; Contra Costa Co., June 14, 1917; at 

 Crystal Springs, San Mateo Co., June, 1916, and in Santa 

 Cruz Co., June 7-9, 1917. This form may be called variety 

 mollipes. Holotype (No. 337), in collection of the Califor- 

 nia Academy of Sciences ; allotype and paratypes, in collec- 

 tion of Mr. Giffard and of the California Academy of 

 Sciences. 



95. Thyrillus pacificiis (Uhl.) Niles Canyon, May 26, 

 1916; May 25, 1917; April 15, 1917; Contra Costa Co., 

 June 14, 1917. 



96. Poeciloscytus nnifasciatus (Fabr.) Santa Cruz Co., 

 June 17, 1917. 



97. Poeciloscytus iikleri (Van D.) Redwood Canyon, 

 July, 1916. 



98. DicJirooscytus siispcctus Reut. Tahoe City, August 

 23, 1916. 



99. DicJirooscytus irroratus (Van D). Tallac, August 

 22. 1916. 



