REVISION OF GENUS TACHYPORUS — BLACKWELDER 47 



plan. The sutural series of punctures is variable, the pair at apical 

 third and the basal pair being the most persistent. 



A specimen from San Francisco, Calif., in the LeConte collection 

 at the Museum of Comparative Zoology bears a lectotype label no. 

 7349, but a specimen in the Horn collection is herein designated the 

 lectotyx)e. 



TACHYPORUS STEJNEGERI, new species 



1898. Tachyporus jocosus Lineix and Schwarz (not Say), in Stejueger's 

 "Asiatic Fur-Seal Islands and Fur-Seal Industry", pt. 4, appendix 1, 

 p. 333. 



Form robust and convex. Piceous; antennae, trophi, prothorax, 

 elytra, and legs testaceous; antennae darker distally, pronotum 

 broadly clouded on disk, elytra with sutural band, median sutural 

 spot and marginal band darker. Antennae with all segments longer 

 than wide; eleventh one-half longer than tenth. Third segment of 

 maxillarj^ palpi enlarged, fourth normal but blunt and short. Pro- 

 notum with sides straight in apical half; not distinctly wider than 

 elytra. Elytra very finely and irregularly submuricately punctured ; 

 with sutural series of larger punctures more distant from the suture 

 than usual; marginal series with four punctures. Abdomen above 

 punctured a little more distinctly than elytra; beneath less finely 

 and with numerous of the larger bluntly muricate punctures on the 

 apical segments. Eighth tcrgite of male broadly rounded; eighth 

 sternite triangularly notched, the notch a little broader than deep, the 

 apex narrowly rounded, the angles not prominent. Eighth tergite of 

 female 4-lobed, the middle pair narrower and separated almost to 

 base ; eighth sternite broadly truncate or very feebly emarginate, with 

 a continuous series of silken hairs. 



Type locality. — Nikolski, Bering Island, Bering Sea. 



Types. — Holotype (a male collected from Nikolski, Bering Island, 

 1882, by Dr. L. Stejneger) and 1 paratype, U.S.N.M. no. 50897; 1 

 paratype in collection of the writer; paratypes collected by Dr. L. 

 Stejneger at same locality in 1922. 



Remttrks. — This species is verj^ similar to caVfornicus but appears 

 to be distinct. When a comj^lete collection from the intervening areas 

 is available, the true status can be determined. 



TACHYPORUS MACULIPENNIS LeConte 



1866. Tachuporus maculipennis LeConte, Proc. Acad. Nat. Sci. Philadelphia, 



vol. 18, p. 374. 

 1877. Tachyporus macitlipennis LeConte, Horn, Trans. Amer. Ent. Soc, vol. 6, 



p. 103. 



Form robust and convex. Piceous; antennae, trophi, prothorax, 

 elytra, and legs testaceous, elytra with an oblique discal black spot 



