608 NORTH AMEEICAN SCOLYTID BEETLES— EICHHOFF. vol. xviii. 



Genus PHLCEOSINUS, Chapuis. 



Phlceosinus graniger, Chai^uis, is undoubtedly identical with dentatus 

 of Say, whose name has priority. But P. haagii, Eichhoft*, seems to be 

 unknown to American entomologists unless it be the female of F. punc- 

 tains. One of my two typical specimens of P. haagii is herewith sent 

 to you. 



Genus PHLCEOTRIBUS, Latreille. 



That P. granicoUis is identical with T. frontalis, Olivier, has already 

 been recorded, but the Texan specimens of the latter you sent me are 

 much smaller than my P. granicoUis, of which I send you two specimens. 

 My P. setnlosxs and dubins, however, are quite distinct from P. fron- 

 talis; the first-named species has on the first antenual joint a brush of 

 hairs, as in tbe genus Thysanoes. 



[The Texan specimens of P. fronfalis were collected under bark of 

 CcUis and are possibly specifically distinct from our Eastern specim«^ns 

 which infest Morns. The brush of hair on the first antennal joint has 

 no specific value, but is merely a sexual character.] 



Genera STEPHANODERES, Eichhoff, and HYPOTHENE- 



MUS, Westwood. 



I concede that a large majority, if not all, of the species described 

 by me as Stephanoderes are congeneric with Hypothe^iemns crnditns, 

 Westwood, as already intimated by me,' where I speak of /S'. areccw, 

 Horrumg, as a probable synonym of Jli/pothenemns ernditns. But the 

 question is whether Westwood's genus as originally described' can be 

 considered as a valid one. Westwood gives as the only generic charac- 

 ter the three jointed antennal funicle; but this is erroneous, for I believe 

 I have convinced myself that in //. crnditns the funicle is five-jointed. I 

 consider, therefore, Westwood's name Hypothencmns as quite untenable, 

 because founded upon a character that does not exist, and the name 

 tStcphanodcrcs has to take its place. 



The North American specimens sent me by yourself as H. ernditns 

 do not agree in many characters with Westwood's and Erichson's 

 desciiptions of this species, and I am inclined to consider your species 

 as identical with Sfcplianodcres crndiw, which was well described and 

 figured as Bostrychus criidiw by Panzer in 1791, from specimens found 

 in some West Indian seed. 



Of Stephanodcres rofnndicoJlis, Eichhofi", I possess only a single speci- 

 men; A', chapnisi, Eichhoff (1871), is identical with S. dissimilis, Zim- 

 mermann (18G8); and St. scuJpturatns., Eichhoff (1870), is identical with 

 the species you sent me as //. erectus, Le Conte, 



' Eatio Ac. Tom., x>P- l*w. 166. 

 -Trans. Ent. Soc, London, I, p. 34. 



