896 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



cordata. I would make concordata synonymous with obdxictata and 

 kodiaJcata with luctuata. In Staudinger and Rebel's catalog'ue the 

 species is called lugubrata Staudinger, the name luctuata being used 

 for a different form {hastulata Hiibner). This depends upon the 

 interpretation of Denis and Schiffermiiller's work, Staudinger and 

 Rebel regarding the name luguhrata of Schiff'ermiiller as a nomen nudum 

 and recognizing the next use of it by Hiibner (1786), which was in a 

 different sense. Hulst, in Bulletin No. 52 of the U. S. National 

 Museum, regarded Schiffermiiller's name as valid. Which is correct 

 I am not prepared to say, as I have not Schiffermiiller's work before 

 me; but in any case hicjxdjTata can not stand, as Moschler's name 

 obductata has ten years priority. 



RHEUMAPTERA GEORGII Hulst. 



No specimens; one from Mr. Cockle's collection without date. The 

 species flies in August and September and probably had not begun to 

 appear at the time I left Kaslo. I took it in September at Victoria. 



MESOLEUCA RUFICILIATA Guenee. 



Ten specimens, May 31, June 4, Y, 8 (Ainsworth), 19, July 15, 

 August 9 (South Fork Creek). The dates indicate two broods. Eggs 

 were obtained from a captive female but proved infertile. 



Egg. — Elliptical, rather thick, flattened above and below in a small 

 area, depression distinct, truncation distinct but rounded. Very finely 

 pitted shagreened, the cell areas showing by slightlj^ raised broad, 

 indistinct reticulations, evenly pitted all over, one cell area containing 

 about 12 pits. Pale green; size, 0.8 by 0.6 by 0.5 mm. 



MESOLEUCA GRATULATA Walker. 



Three specimens, May 29, and one from Mr. Cockle's collection, 

 April 15, 1901. I have described the larva in Life Histories of 

 North American Geometridae, XLIV." 



MESOLEUCA CiESIATA Schiffermiiller. 



Twenty-eight specimens, June 13, August 6, 21 (Revelstoke), Sep- 

 tember 8 (Glacier), 9 (Field), 10 (Banff, Alberta). The dates indicate 

 two broods. This is a high altitude species, only three specimens being 

 taken at Kaslo. 



MESOLEUCA LACUSTRATA Guenee. 



Two specimens, June 10 (Mr. Cockle), 11 (Fletcher's ranch). Eggs 

 were obtained from a captive female and hatched, but no suitable food 

 plant could be found, the larvae refusing everything offered them. 



aPsyche, X, 1904, p. 191. 



