880 



FAMILY XLIII. — PTINIDJE 



e. Color black or nearly so; punctuation relatively sparse; sur- 

 face shining. 1671. nigritulum. 

 ee. Color rufous to piceous, usually some shade of brown ; punc- 

 tuation closer ; surface less shining. 

 /. Form more elongate, twice as long as wide; pubescence finer 

 and shorter ; profile not in the least gibbous. 



1672. VEXATUM. 



ff. Form more oval, about three-fifths as wide as long; pubes- 

 cence more conspicuous. 1673. grave. 

 bh. Middle tibiae without marginal groove. 



g. Pubescence exceedingly short, sparse and indistinct ; color chestnut 

 brown to blackish. 1674. castaxeum. 



gg. Pubescence normally developed. 



It. Form evidently gibbous in profile, elytra not parallel ; coarser 

 punctures scarcely visible on any part. boeeale. 

 Tilt. Form not gibbous in profile, elytra parallel. 



L Tuner lateral stria of elytra feeble or indistinct; size smaller, 

 under 2 mm., and more elongate; coarser punctures lacking. 



GEACILE. 



ii. Lateral stripe of elytra well developed; size medium. 2-2.7 mm. ; 

 coarser punctures evident on elytra and sides of thorax. 



1675. CONFUSUM. 



C. ventrale Lee., parallel, twice as long' as wide, length 2-2.4 

 mm., has been recorded from Cincinnati. 



1669 ( 5308). Catorama prxcTATUvr Lee. Proc. Phil. Acad. Nat. Sci., 1865, 



240. 



Elongate, subcylindrical. more than twice as long as wide. Uniform 

 reddish-brown, rather finely and sparsely pubescent. Elytra densely and 

 rather finely punctured. Front tibia? with two deep grooves, middle tibia; 

 with one. Length 2.1-2.8 mm, 



Marshall and Marion counties ; rare. May 22-June 10. Ranges 

 from Indiana south and southwest ward. 



1670 ( ). Catorama dichroum Fall. Trans. Ainer. Entom. Soc. XXXI. 



1905. 240. 



Oblong-elliptical, twice as long as wide. Piceous brown; head, thorax 

 and ventral surface reddish-brown. Upper surf nee finely, evenly and rather 

 closely punctulate throughout. Eighth antennal joint broadly subquadrate. 

 triangular, nearly as wide as long. Aletasternum with coarser and fine 

 punctures intermingled, the former reaching the sides. Length 1.8-2.5 mm. 



Marion County; scarce. April 6. 



1671 (5318). Catorama xigritulum Lee. Proc. Phil. Acad. Nat. Sci.. 1S65, 



241. 



Elongate-oval, moderately robust, less than twice as long as wide, not 

 narrowed behind.. Black or piceous; pubescence sparse and very fine. Head 

 and thorax finely, closely and evenly punctulate without intermixed coarser 

 punctures. Elytra finely punctulate with scattered larger punctures. Eighth 

 antennal joint broadly triangular. Length 1.7-2.4 mm. 



Vermillion and Lawrence counties; scarce. May 24-June 13. 



