46 Journal New York Entomulugical Society. [Voi. xi. 



Latreille's redescription of this species and his subsequent figure 

 (Genera Crust, et Insectorum, Vol. I, Plate i6, Fig. 6, 1806) agree 

 well with Fabricius' original description of Aluciia dorsella (Ent. 

 Syst., 3, 2, p. 336, 1793), which is as follows: " Alis anticis cine- 

 reis fusco irroratis ; dorso communi albido ; maculis duabus nigris. 

 Magnitude A. sylvellte, caput albo hirtuni ; ake antica; cinerese atomis 

 plurimis fuscis dorsoque communi albidore maculis majoribus atomisque 

 plurimis nigris ; posticse fuscee. Pedes albi, tarsis nigro annulatis." 



Stephens (Cat. Brit. Lep., p. 223, 1829) made this species a 

 synonym of Tinea vittella Linn. (Syst. Nat., edit. X, p. 538, 1758), 

 and inasmuch as Linne's discription does not disagree with this con- 

 tention and as no disproof of the synonymy can be forthcoming, it is 

 imperative that Stephens' synonymy should be accepted. Treitschke's 

 contention (Schmett. Europe, Vol. IX, Part II, p. 39, 1832) that 

 dorsella Fabricius is synonymous with Tinea falcclla Hubner (D. & 

 Sch.) (Syst. Verz. Schmett. Wien. Gegend, ]). 112, 1775) cannot be 

 sustained, owing to the priority of Stephens' determination, even if 

 there was as much reason for Treitschke's belief as for Stephens', which, 

 however, is not the case. Neither does Curtis' statement (Brit. Ent , 

 Vol. IX, p. 420, 1832) that xylostella Linn, is the type of Cerosioma 

 have any weight. Duponchel (Cat. Lep. Europe, p. 350, 1844), 

 Herrich-Schaffer (Europe. Schmett., V, p. 41, 1853) and other subse- 

 quent writers followed Treitschke in \Ad,QXw^ dorsella Fabricius as syn- 

 onym oifalcella Hubner, but without giving the necessary evidence. 



In any classification of the species comprised at present under the 

 genus Cerosfoma, the name Cerosioma must thus be retained for the 

 group in which vittella Linne is found. 



Hiibner's genus Ha7'pipteryx (Verz. bek. Schmett., p. 407, 1816) 

 contained originally four species, of which Zeller made the one, por- 

 ficella, type of a new genus Holoscolia (Isis, p. 190, 1839). 



The other three are congeneric and the name Harpipteryx must 

 therefore stand for the genus of which these three species : hamella 

 Hubner =: nemorella Linne, harpella Schiff. =: xylostella Linne, and 

 falcella Schiff., are to this day the principal best known species. 

 Xylostella may, as suggested by Lord Walsingham (Proc. Zool. Soc. 

 Lond., 1 88 1, p. 309), be regarded as the type of this genus, of which 

 Perielymenohiiis Wallengren (Ent. Tidskrift, I, p. 61, 1880) is an 

 unquestionable synonym, as it contained the same three species and 

 no more. Hiibner's generic name Tlieristis has inconsistently been 



