168 THE CANADIAN ENTOMOLOGIST 



abdomen lacking Primaries thinly scaled, black ; costa and fringes pale ochreous ; 

 traces of ochreous along cubitus and vein 1 ; t.a. line broad, pale ochreous, 

 strongly outwardly oljlique from costa to below cubitus, then angled inwardly 

 and oblique to inner margin a little over 1-3 from base. T.p. line broad, 

 ochreous, rounded outwardly below costa and then parallel to outer margin ; s. t. 

 line ochreous, rather indistinct ; inwardly oblique from costa to vein 6, then 

 forming a prominent W mark, touching t.p. line below veins 4 and 2, and the 

 outer margin at veins 1, 2 and 5. On one side only a small costal spot just 

 beyond t. a. line. Secondaries almost uniformly dark smoky, slightly paler sub- 

 terminally. Beneath paler than above with costa of both wings scaled with 

 ochreous and a sprinkling of pale scales over entire surface ; primaries with 

 maculation of upper side faintly reproduced; secondaries with two fairly evident 

 dark subterminal round spots on vein 2 and between 5 and f>. Expanse 30 mm. 

 Holotype, 1 ?, Banfif, Alta. (June 13, 1914) ( N. B. Sanson), in Canadian 

 National Collection. 

 The species is much less hairy in the vestiture of head and thorax than 

 either brucei Edw. or bcani Neum., but by venational characters seems best 

 placed in the above genus. 



COSYMBIA LUMENARIA HUB: A CORRECTION. 



BY E. H. BLACKMORR, 



Victoria, B.C. 



In a recent letter from Mr. L. B. Prout of London, England, commenting 



on some geomitrid notes in Ann. Report Prov. Mus. Nat. His. B.C., 1919, he 



asks me not to use the name Cosymbia lumcnaria for C. pcndulinaria, as it is a 



gross misidentification on the part of the late Dr. Hulst. 



Wishing this to be corrected in North American Check Lists, he has given 

 me some notes on the subject which I present in the following form: 



1832. Geyer in his continuation of Hubner's Zutr. Exot. Schmett. fig- 

 ured as lumenaria a species which he erroneously believed to be 

 from North America but which is really East Indian. 

 ' 1895. Hulst in working up the old literature came across this figure and 



making a guess at identifying it with some North American 

 species, picked on pcndulinaria as being the same. 

 1896. Hampson (Moths of India, I\'., p. 556) found the correct deter- 

 mination of lumenaria, sinking his own Rambara ochreicostalis in 

 the synonymy. 

 American authors have, not unnaturally, overlooked this and continued to per- 

 petuate Hulst's error. 



In the meantime our American Cosymbia had been named pcndulinaria 

 by Guenee (1857) and this is the oldest name belonging to it. 



On looking up Genera. Ins. Fasc. 104. p. 7?>, I find that lumenaria Geyer 

 is placed in the genus Derambila Walk, and its distribution is given as India 

 to Malaysia. The apparent discrepancy of authorship is attributable to the fact 

 that Geyer was editor of Hubner's works for a long time and continued them m 

 Hubner's name after the death of the latter. This has given rise to a lot of 

 inconsistencies in citation. 



The name of lumenaria Hub. will have to be dropped from our North 

 American Lists and pcndulinaria Gn. will now takes its place. 



Mailed Sept. 30th, 1921. 



