478 Coleopterological Notices, VI. 



thirds wider than long, the sides parallel, evenly and moderatel}' 

 arcuate, the base arcuate, with the angles somewhat distinct though 

 obtuse and rounded ; apex rectilineai*ly truncate, the angles 

 slightly obtuse and distinctly' rounded ; disk sparsely and rather 

 llnely i)unctured, polished. Elytra long, fully three-fourths longer 

 than wide; evidently, though only slightly, wider than the pro- 

 thorax, parallel and straight at the sides, not very broadly rounded 

 behind, the punctures moderately line and well separated; inter- 

 spaces slightl}' alutaceous. Length 3.8 mm.; width 1.4 mm. 



California (San Francisco). The male type above described 

 has very simple sexual characters, the fifth ventral being sub- 

 truncate at apex and unmodified, the genital segment large and 

 flat, with a fine deep canaliculation along the median line. 



7. T. laticolli§ Mauu.— Bull. ISIosc, 1843, p. 247 (Dasytes);Lec.: Proc. 

 Acad., Phila., 1866, p. 352 (Pristoscelis). 



Oblong, convex, shorter and broader than cj/lindricus, with the 

 pubescence a little longer and denser, cinereous ; body black, the 

 upper surface with a gra^'ish-subieneous lustre ; legs and antennae 

 piceous-black, the latter feebl}^ testaceous toward the base of the 

 funicle. Head confusedly punctato-scabrous, broadly bi-impressed 

 anteriorl}', the labrum broad, feebly arcuate at apex ; antennae 

 moderate, the tenth joint somewhat transverse. Prothorax three- 

 fifths wider than long, the sides parallel and strongl}- arcuate ; 

 basal angles very broadly rounded and obliterated, the apical 

 broadly rounded but less obliterated; apex truncate; disk finely, 

 sparsel3' punctate and polished. Elytra one-half longer than wide, 

 only slightly wider than the prothorax, parallel, ver}' broadly and 

 obtusely rounded at apex, the humeri somewhat acutely tumid ; 

 punctures rather fine and well separated, rugose b\- oblique reflec- 

 tion, the interspaces polished. Length 3.2-3.7 mm.; width 1.3- 

 1.5 mm. 



California (near San Francisco). Somewhat allied to cylin- 

 dricus, but broader, with more strongly arcuate sides of the pro- 

 thorax and more broadly rounded basal angles. The male difl!ers 

 but little from the female, having feeble sexual characters at the 

 abdominal apex, but the prothorax is larger, although similarly 

 proportioned and is about as wide as the elytra ; the head is large 

 in both sexes. Several other very closely allied species are indi- 

 cated b}' material in my cabinet. 



