﻿74 THE ENTOMOLOGIST. 



stone in July, 1911, by Mr, W. Purdey, who has very kindly pre- 

 sented four specimens, including the type, to the British Museum. 

 This novelty, we are told, rests among needles of the Scots fir 

 {Piniis sylvestris) in the daytime, but about dusk it flies from 

 branch to branch. 



The Rhyacionia described as logcea is the species from Scot- 

 land that has long been doing duty for " Retinia" duplana, 

 Hiibn., in our collections, and of these so-called " duplana " 

 Mr. Durrant has examined some fifty examples. Curiously, 

 the specimen figured as duplana (Barrett, * British Lepidoptera,' 

 xi. p. 40, pi. 476, fig. 2) has now become the type of logaa, 

 Durrant. 



In general appearance it is not unlike a small R. sylvestrana, 

 but " the ferruginous apex of the wing and the slightly different 

 direction of the fascire " distinguish it from that species. 



In connection with the change in generic name introduced by 

 Mr. Durrant in his paper, the following extracts and remarks 

 may be permissible : — 



On the opening page of vol. iv. of * Illustrations of British 

 Entomology, Haustellata' (1834), Stephens remarks, in a foot- 

 note : — " I propose to give at the end of this volume a synopsis 

 of the indigenous Lepidoptera, agreeably to the arrangement 

 and nomenclature of Hiibner in his ' Verzeichniss bekanter 

 Schmetterlinge,' 1816, whose arrangement, however, appears to 

 be less dependent upon structure than upon the variations of 

 marking and colour : his groups are therefore in many instances 

 very artificial : nevertheless as his work has hitherto only been 

 occasionally, and not in all cases correctly, referred to, I conceive 

 an abstract of its contents, so far as relates to the British 

 species, as divided and named, nearly twenty years since, may 

 be useful." 



In his treatment of the Tortricidse, &c., Stephens used most 

 of the * Verzeichniss ' names, in a subgeneric sense, but the 

 result was not always happy, and sometimes misleading, as the 

 following critical remarks by Fernald concerning the genus 

 Rhyacionia, Hiibn., will illustrate : — 



''Rhyacionia, Hb., p. 379 [Verz. bek. Schm.] , with five species 

 under it {hastana Hb. (non L.); buoliana Schiff. ; gemmana Hb. ; 

 turionana Hb. ; and ministrana L.). On page 392 in the same work, 

 Hiibner established the genus Eidia, with ministratia L. the only 

 species and type, thus eliminating this species from Rhyacionia 

 Hb. The second and third names, buoliana and gemmana, 

 represent one species, so that there are only three species left 

 from which to select the type. Stephens, in his ' Illustrations,' 

 page 178, adopted Rhyacionia for a subdivision of the genus 

 OrthoUenia, with turionana {buoliana Schiff.), gemmana Hb., and 

 bentleyana Don. under it, but on page 180 he adopted Rhy- 

 acionia Hb. as a genus, with hastianaL. the only species under it. 



