NATURAL SCIENCES OF PHILADELPHIA. 31t 



cus, this species has nearl}^ the sexual characters of L. IlaJde- 

 viani : that is to say, the tooth on the inner side of the middle 

 tibii\i of the male is obsolete, and the apical tooth or process is 

 small and acute, though much less developed. 



LOXANDRUS Lee. 



I have not had access to a sufficient number of specimens to 

 enable me to make a revision of the species of this genus, which 

 seem to be in part at least, indefinite and opinionative. 



The following species have not been identified : 



Feronia carbonaria Dej. 



F. ebenina Dej. 



Brachystylus paralellus Motsch. 



Brachystylus curtipennis Motsch. 



F. (Hypherpes) sejungenda Chaud. Rev. et Mag. Zool. 1868. 



F. PRyETERMissA Chaud. ibid. 



Omaseus nigrita J Kirby, Fauna Bor. Am. The t3"pe in the 

 British Museum examined b}' me is larger than P. caudicalis, and 

 difters by the prothorax more narrowed behind, the hind angles 

 smaller, and the two strine of the basal fovese not connected by a 

 hooked line. 



F. monedula Newm. Ent. Mag. V. 386. Type not in the British 

 Museum ; referable probably to coracinus Newm. 



Argutor linearis Mannh. Bull. Mosc. 1853, 126. 



P. RUGULOSUS (Motsch.) Mannh. ibid. 1852, 296 ; Sfe7'opus rug. 

 Motsch. ibid. 1845, iv. 342 ; Steroderiis rug. Motsch. Kiifer Russl. 55. 



P. fusco^neus Mannh. Bull. Mosc. 1843.203; Omaseus fuse. 

 Chaud. Ann. Ent. Soc. Tr. iv. 448 ; Chaud. Rev. and Mag. Zool. 

 1868, = riparius f. Chaud. 



Omaseus rufisgapus Mannh., Bull. Mosc. 1853, 126; Cryobius 

 ruf. Chaud. Rev. and Mag. Zool. 1868. 



F. (Cryobius) ruficollis Mannh. ib. 1853, 131 ; near emjyetri- 

 colla fide Chaud. Rev and Mag. Zool. 1868. 



F. (C.) ROTUNDicoLLis Mannh. ibid. 1853, 132. 



F. (C.) SUBSINUOSA Chaud. Rev. and Mag. Zool. 1868. 



F. (C.) ARCTICOLA Chaud. ibid. 



F. (C.) LABRADORENSis Chaud. ibid. 



F. (C.) DiPLOGMA Chaud. ibid. 



