94 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



F. F. Crevecoeiir, Wickham; Topeka, Popenoe; Riley Co\inty, 

 Popenoe. 



Remarks: The characters described by Jacoby (1891) for the 

 genus Luperosoma so well fit the species described from North America 

 by Horn (1893, 1896) as Phyllecthrus parallelus, P. schwarzi, and P. 

 subsulcatus that I am transferring Horn's species, leaving to Phyllec- 

 thrus the original ones described by LeConte (1865, 1868, 1884), who 

 took as type of that genus Phyllecthrus dorsalis (Olivier). 



Luperosoma subsulcatum (Horn) 



Figure 4,/ 

 Phyllecthrus subsulcatus Horn, Trans. Amer. Ent. Soc, vol. 20, p. 126, 1893. 



About 3.5 mm. in length, elongate oblong oval, shining although 

 somewhat alutaceous, elytra with numerous longitudinal ridges be- 

 tween which are semis triate, moderately coarse punctures; head, 

 antennae, prothorax, abdomen, tibiae, and tarsi reddish brown, 

 elytra piceous; antennae in male flatly widened towards apex, middle 

 tibiae notched near apex. 



Head shining reddish brown, smoothly rounded over occiput with 

 some punctures in the depression over the frontal tubercles, tubercles 

 swollen, a faint median line; antennal sockets depressed but the area 

 between not prominently produced into a carina; eyes widely sepa- 

 rated and from above not showing their comparatively large size. 

 Antennae stout in male, the 2d and 3d joints short and robust, 4th 

 longest, 5th and 6th shorter and equal, 7th cylindrical and a little 

 shorter, 8th and 9th short and broad, 10th and 11th very broad and 

 long; in the female, 3d and 4th joints longer than 2d and subequal, 

 4th longer than succeeding joints which are not enlarged. Prothorax 

 almost as long as wide, with only slightly curved sides, a small tooth 

 at apex, shining reddish brown sometimes with a median round brown- 

 ish or piceous area; without much sign of semicircular depression on 

 most specimens, a few inconspicuous punctures along base. Scutellum 

 dark. Elytra usually entirely piceous (in one specimen the base 

 and side from humerus down reddish brown, the rest of elytra pi- 

 ceous); shining although faintly alutaceous, a little wider than pro- 

 thorax and narrowly elongate; humeri moderately prominent, nu- 

 merous irregular longitudinal ridges between rows of punctures, the 

 punctures moderately coarse and irregularly striate, both punctures 

 and ridges becoming obsolete near apex. Epipleura disappearing at 

 apical curve; body beneath with breast dark, pros tern um and abdomen 

 pale, femora more or less dark, tibiae and tarsi paler brown. Middle 

 and posterior tibiae with a fine spine, and in male, the anterior 1st 

 tarsal joint cylindrical and twice as broad as the next; middle tibiae 

 notched, claws appendiculate. Length 3-4.3 mm.; width 1.3-1.7 mm. 



