58 SPECIMENS OF 



23. Calocampa Cineritia. 

 There are three species of this group in Xorth 

 America, strictly congeneric with the European 

 Vetusta. Mr. Morrison regards the Eastern C. Nu- 

 pera, Lintner, as representing the European C. Ve- 

 tusta in America (Bull. BufF. S. N. S. ii. p. 195). 

 The present species seems to have the widest range, 

 extending across the Continent. C. Cineritia has 

 the thorax black : there are no brown shades on the 

 internal portion of the wing, nor is the terminal 

 space ochraceous, except opposite the disk and as 

 the contir.uation of the discal shading; the black- 

 ringed ordinary spots are so close as to nearly meet ; 

 the orbicular is not represented by superposed dots 

 as in the European species. This species was sent 

 to me first by Mr. E/oland Thaxter from his captures 

 in Massachusetts. 



Calocampa Cineritia, Grote, Proc. Ac. jS". Sci. Phil. p. 210 (1S74). 



24. Gortyna Rigida. 



This species has somewhat the colours of G. Ca- 

 taphracta, but the exterior median line is nearly 

 straight ; the terminal fields are purple, the rest of 

 the primary light straw-yellow. The hind wings are 

 pale. It has been taken in Illinois and Pennsylva- 

 nia, and also by Mr. Thaxter in the Eastern States. 

 There is a tuft behind the collar ; the eyes are naked ; 

 the front smooth. I refer it to Gortyna, Hiibner 

 (= Jli/dracia of Lederer), although, with Ceri?ia, it 

 may find a more natural position when we know its 

 immature form. 



Gortyna Rigida, Grote, Can. Eut. ix.p. 87. 



