78 THE CANADIAN ENTOMOLOGIST. 



Gortyna margijiidefis, Giienee.— A specimen before me was com- 

 pared with Guenee's type by Mr. Schaus, and a reading of Guenee's 

 description appears to me to entirely confirm the determination. The 

 species is, however, not the one identified as marginidens by Prof. J- B. 

 Smith and by Mr. H. Bird, but the '' dark form " of cii-cumlncens, Smith, 

 referred to by Mr. Bird as forming galls in the stems of hop (Can. Ent., 

 XXXIX, 137, 1907). The types of circiuiilucetis, while similar in 

 markings, are considerably darker in colour than the marg'uiidens^ and, 

 considering how closely the species of Gortyna are allied, I am inclined 

 to retain circtimhiceiis, for the present at least, as a distinct species, the 

 larva being still undiscovered. The species heretofore known as 

 marginidens will require a new name, and may be known as 



Gortyna Birdi, n. sp. — Of the same pattern and coloration as 

 marginidens^ Guen., but the colours more diversified, the median space 

 more contrastingly lighter below ; at the base of the wing, beside the 

 single white speck, two spots, a waved line and a dot ; reniform spot 

 larger, more expanded, similarly formed ; orbicular with a central brown 

 dot, not solid ; apical pale patch somewhat more diffused. 



Eight specimens before me, the one selected as type being a male in 

 fine condition, bred by Mr Bird at Rye, New York. 



Type, No. 11410, U. S. National Museum. 



Gortyna nephrasyjit/ieta, n. sp. — Similar to Birdi, Dyar, and as 

 large as the largest female of that species before me. The fore wing is 

 much the same, but the colour is less bright, and the shadings less 

 contrasted, being of a dull tan brown. The markings are all the same, 

 the principal difference residing in the reniform stigma, which is very 

 large and almost solidly white, the centre line being white instead of 

 yellow as in Birdi, and closely fused to its large surrounding spots, their 

 separations forming narrow hair-lines. Apical blotch large, pale. 

 Expanse, 47 mm. 



One ?, Plummer's Island, Maryland, Sept. 27, 1904 (E. A. Schwarz). 



Type, No. 11413, U. S. National Museum. 



I have had this specimen under the label marginidens, Guen. 

 (= Birdi, Dyar), for several years, but now that Mr. Bird has shown how 

 closely these species run, it is impossible to longer hold it in that 

 association. 



