52 [August, 



Orders of insects inhabiting the channel islands ; that M. Piquet, of 

 St. Heliers, be asked to become its Honorary Secretary ; that a free 

 interchange of specimens should take place between our fellow- 

 workers in these islands and ourselves — it must be remembered that 

 they have the same postal laws, and are under the same postal 

 arrangements as England, which facilitates the plan ; at the close 

 of every year, a list of all fresh species (to include the very com- 

 monest) should be published, but that no insect ivhatever should be so 

 recorded without its thorough examination by a London committee 

 appointed for the purpose : this is necessary to avoid errors, nobody 

 ought to be hurt by such a proposal : ,for my own part, in this and in 

 many other papers, I have been only too glad to avail myself of 

 Mr. Stainton's kind aid in naming the Tinea? of the list, as well as 

 help from other Entomologists when it has been needed. 



105, Harborne Road, Edgbaston, 



Birmingham : May 28th, 1888. 



NOTES ON THE SYNONYMY OF CERTAIN BRITISH LEUCANIIDM 

 BY J. W. TUTT, F.E.S. 



Nonagria extrema, Hb., concolor, Gn., d^rxdifulvti, Hb. 



In working through our Leucaniidce I have had to pay a great 

 deal of attention to the svnonymy of some of the species. On going 

 through Hiibner, I find I made the following note about his figure 412 

 {extrema), " Wings about the same shape as Bonclii. All the wings 

 white, slightly shaded to ochreous on the outer margins, nervures 

 slightly darker on outer edge ; anterior wings with traces of a trans- 

 verse row of spots. The upper part of the fringe of the anterior 

 wings black ; remaining fringes grey." It is totally unlike any of our 

 British species, unless it is a peculiar form of JBondii. None of our 

 Nonagriw or the allied genera have the upper part of the fringes 

 black, so this character may be thrown out. 



Guenee,in his " Noctuelites," p. 103, treated it as a distinct species 

 from concolor of Guenee, and having inspected the Doubleday speci- 

 mens of the latter species, I think he was very wise to do so. I cannot 

 see the slightest reason for supposing them to be alike. 



Staudinger, in his Catalogue, p. 107, treats Guenee's concolor as a 

 variety of extrema, Hb., 412, adding to the latter ah., meaning, I sup- 

 pose, that his figure (Hb. 412) is an aberration, although being the 

 first figure it must be the type. He also adds after concolor, Gn. i, 

 103, the word certo. I fail entirely to see why certo, to me it seems 

 uncertain or rather impossible. 



