46 [February, 



REVISION OF THE NOMENCLATURE OF MICROLEPIDOPTERA. 



BY Tfir; RT. HOX. LORD WALSINGHAM, M.A., LL D., F.R.S., &c., 



AND 



JOHN HARTLEY DURRANT, F.E.S. 

 [Continued from Vol. XLII. 197 (IX. 1906)]. 



BLASTOBASIDAE. 

 Blastobasidae Meyr. Tr. Eiit Soc. Lond. 1894. 22. 



When tabulatiiiir the Blast ohasidae [Pr. U. S. Nat. Mus. XXXIII. 

 199-200 (1907)] eighteen genera were included in the family, and 

 since then Colinita Busek, Prosthesis Wlsui., Tecmerium Wlsm. 

 and Zenodocliium Wlsm. have been described. 



In connection with work in progress it has been necessary to revise 

 these twenty -two genera, and in this we have had the advantage of 

 the collaboration of Mr. August Busck of the U. S. Department of 

 Agriculture. 



Busck [Pr. U. S. Nat. Mus. XXXY. IS9. 190 (1908)] has removed 

 Endrosis Hb. to the Oecophoridae ; he has since studied the type of 

 Arctoscelis Meyr. with Mr. Meyrick, and both are agreed that this 

 should also be referred to the Otcophoriilae. 



Agnoea Wlsm. is an Oecophorid : this was described as having 8 and 

 4 of the hind wings coincident, which is not absolutely accurate, for 

 on the right side of the type a minute furcation is found near the 

 margin of the wing. 



Mr. Busck was able to identify his Colinifa as = Arotrura Wlsm. ; 

 both these names must sink as synonyms of ScytJiris Hb. {Hi/pono- 

 meu/idae). Scythris has 4 and 5 of the hindwings connate, or stalked, 

 while the American species at present listed under this name have 

 4 and 5 separate, these, together with the European cicndelln Z. (and 

 probably the Australian species also) must be referred to Jpostibes 

 Wlsm. " 



A microscoj)ic examination of the denuded wings of loonisma Wlsm., 

 shows that in the hindwings G and 7 are stalked, 5 out of their stalk, 

 the discoidal obsolete ; and that in the forewings there arc but eleven 

 veins (3 and 4 coincident — or 2 obsolete ?), 7 and 8 stlalked to costa ; 

 6 out of 7, and 5 out of the stalk of (6+7-f 8) — this must be referred 

 to the Coleoplioridae (^*Elachistidae). 



Seven genera founded on secondary sexual characters (mainly on 

 variations in the structure of the antennae) are now regarded as 

 untenable, the synonymy of the remaining ten genera of Blasto- 

 basidae being as follows : — 



