326 AMERICAN PACHYBRACHYS (cOLEOPTERa) 



Group F 



The two species here segregated constitute the most natural of 

 the groups into which I have separated our species. The group 

 characters are as stated in the table and are easily appreciable. 

 The species separate readily by their color. 



Grayish or yellowish brown with a more or less distinct dark svibapical 



siitural spot 158. hepaticus 



Black, with scarcely a trace of paler marks 159. microps 



1. Pachybrachys pubescens Olivier 



Robust, black throughout, with sparse short grayish pubes- 

 cence. Eyes small and distant. Ave. length 4.1 mm. Atlantic 

 Coast Region. 



Head closely to densely punctate throughout; eyes small, their distance 

 apart obviously greater than their vertical length in the male, and fully one- 

 half greater than their length in the female. 



Prothorax about three-fifths wider than long, widest near the base, sides 

 strongly convergent and nearly straight or feebly arcuate; punctuation rather 

 coarse, close throughout, denser laterally, less dense toward the middle of the 

 disk; a narrow more or less incomplete or imperfect smooth median line often 

 present. 



Elytra slightly longer than wide, punctuation usually distinctly coarser than 

 that of the prothorax, close, evenly distributed, without trace of serial arrange- 

 ment. 



Length 3.4 to 4.8 mm.; width 2 to 2.8 mm. 



Distribution. — Occurs from New York to South Carolina, 

 usually at no great distance from the coast. The following 

 localities are known to me or are authoritatively reported. 



New York: Watkins, June 12 (Nat. Mus. Coll.). Pennsylvania: Water 

 Gap. (Van Dyke Coll.). New Jersey: Ocean Co. (Leng); Cape May Co., V- 

 28 (Wenzel); Atco, May 29; (Liebeck); Newtonville, June (Boerner); Clemen- 

 ton, May; Da Costa. NorthCarolina: Wilmington (Wenzel Coll.). South 

 Carolina: In Hubbard and Schwarz and Liebeck Colls, without definite local- 

 ity. Ohio: Cincinnati (Dury). 



It may be remarked that this is the jnorosus Hald. of the Hen- 

 shaw List. In the Henshaw Supplement the viduatus of Fab. 

 has unaccountably been recorded as the equivalent of pubescens 

 Oliv., two species which are totally unlike in general appearance. 



2. Pachybrachys haematodes SulTrian 



Very similar to pubescens and differing as follows: 



