46 PROCEEDINGS OF THE NATIONAL MUSEUM vol.84 



gite of female 4-lobed, the middle pair a little longer and narrower; 

 eighth sternite rounded and with a single series of silken hairs. 



Type locality. — Tehama County, Calif. 



Types. — Holotype (male collected from Tehama County, Calif., 

 April 27, 1913, by F. W. Nunenniacher) , U.S.N.M. no. 50896; 2 

 paratypes (same data) in collection of the writer. 



Remarks. — This species has only been collected once, but the differ- 

 ences between it and calif oi^iicus seem constant and of sufficient im- 

 portance to separate it specifically. 



TACHYPORUS CALIFORNICUS Horn 



1877. Tachyporus californicus Horn, Trans. Arner. Ent. Soc, vol. 6, p. 104. 



Form robust and convex. Piceous; basal half of antennae, mar- 

 gins of pronotum, prothorax beneath, elytra, and legs slightly paler. 

 Antennal segments all elongate, but last four slightly expanded, 

 eleventh less than twice as long as tenth. Third segment of max- 

 illary palpi enlarged, fourth acicular. Pronotum with sides regu- 

 larly arcuate; not wider than the elytra. Elytra castaneous, very 

 finely and densely punctate and pubescent ; with a row of two or three 

 large muricate punctures along the suture; lateral series with four 

 punctures, and a submarginal series of three. Abdomen above less 

 distinctly punctured, beneath more sparsely and with a few larger 

 muricate punctures on the apical segments. Eighth tergite of male 

 slightly prolonged in a broad lobe ; eighth sternite with a triangular 

 notch, somewhat broader than deep and with the apex broadly 

 rounded. Eighth tergite of female divided into four lobes, the 

 median pair narrower and separated to base; eighth sternite evenly 

 rounded and with a single series of silken hairs. 



Type locality. — Hunters Point, San Francisco County, Calif. 



Lectotype.—Kc2id. Nat. Sci. Phila. no. 3139; labeled "Cal." and 

 "Hunter's Point." 



Localities represented. — The present collection includes specimens 

 from the following localities: California (Humboldt County, Siskiyou 

 Count3^ Shasta County, Plumas County, Mendocino County, Marin 

 County. San Francisco County, Alameda County, Contra Costa 

 County, Sacramento, San Mateo Countj^, Santa Clara County, 

 Santa Cruz County, Yuba County, Eldorado County, Stanislaus 

 County, Tuolumne County, Sierra County, San Joaquin County, 

 Mariposa County, Tulare County, Monterey County, Kern County, 

 Inyo County, Los Angeles County, San Diego County) . The Horn 

 collection contains a specimen from Oregon and Dr. W. M. Mann 

 has recorded one specimen from Pullman, Wash. 



Remarks. — This is a very common species throughout California. 

 It varies considerably in color but usually maintains the general 



