598 Colbopterological Notices, V. 



Epitragodes (1. c, p. 54), is closely allied to Schoenicas but differs 

 in the stouter body, less prominent eyes, securiform fourth palpal 

 joint and prominent prosternal process with vertical posterior wall; 

 in Schoenicus the last palpal joint is more slender and triangular, 

 rounded at apex with the inner side but slightly shorter than the 

 outer, and the prosternal process is longitudinally convex and 

 gradually declivous behind. 



Hymenorua obesus Csy. (1. c, p. 93), is not distinct from pilosus 

 Melsh. In difficilis (1. c, p. 94), the measurements are somewhat 

 in error, the true dimensions of the type being about 6.0 by 2.5 mm. ; 

 the third antennal joint, also, is more than two-thirds as long as the 

 fourth. Of Mycetochara megalops I have recently received a fine 

 example taken in New York. The species of Andrimus defined 

 under that genus, are distinct in ni}^ opinion ; only two of them are 

 known to the authors of certain recent hints to the contrary, and 

 even they appear to have been misunderstood. 



Thysanocnemis horridula Csy. (Col. Not. lY, p. 426), cannot be 

 maintained as distinct from fraxini Lee; the locality label on the 

 type of horridula is probably erroneous. 



The name Otidocephalus myrmecodes Chev., was assumed by me 

 (1. c, p. 435), under a wrong impression. The reference given by 

 Dr. Horn, ''myrmecodes || Chev.," conveys the idea that Chevrolat 

 described independently a species under the preoccupied name myr- 

 mecodes, and, under such circumstances, this name would of course 

 stand when the original myrmecodes fell into synonymy. The 

 truth, however, as I subsequently discovered — it did not occur to 

 me to investigate further at the time, — is that Chevrolat described 

 what he considered to be myrmecodes Say, and the reference should 

 have been ''myrmecodes Chev. nee Say," which has quite a differ- 

 ent meaning. The true name of the species is therefore : — 



O. Clievrolati Horn — Proc. Am. Phil. Soc, XIII, p. 450; myrviecodes 

 Cliev. iiec Say : Ann. Ent. Soc. Fr., 1832, p. 445 ; Casey : Ann. N. Y. Acad. 

 Sci., VI, p. 435. 



Specimens of Tyloderma contusa Csy. (1. c, p. 452), recently re- 

 ceived, show that the humeri are generally nearly as widely exposed 

 as in foveolata, and that the integuments beneath the pubescent 

 patches of the elytra are rufescent ; there are also a few hairs near 

 the scutellum. The species would consequently be plainly allied to 

 variegata, if it were not for the very coarse deep fovese of the pro- 

 notum and elytra, which suggest an affinity with foveolata. 



