THE CANADIAN ENTOMOLOGIST. 55 



above. On the darker fore wings beneath the spot and band are more 

 faintly repeated. Head and thorax concolorous dark smoky gray, paler 

 beneath; abdomen like secondaries. Not rare. Canada to Middle 

 States. Larva unknown. Hibernated specimens are found in April and 

 May ; the fresh examples may be taken in October. 



Lithophane Geor'gii Grote. 



Differs by its warmer and darker gray color ; the pale costal shading 

 of primaries is confined to the shoulder of the wing ; the black angulated 

 median shade is diffuse and evident ; the veins more evidently black 

 marked ; the subterminal line is distinct, and the customary black basal 

 ray is to be plainly seen. Beneath the mesial smoky band on the whitish 

 gray secondaries is wavy, being roundedly indented on the disc, and this 

 character is very evident on comparison, its course being straight without 

 prominent inflection in L.fagina. Mrs. Fernald sends me this species 

 from Maine ; the type was collected by Mr. George Norman, in Canada. 



D. Qn Parorgyia Clintonii. 



This northern form is allied to the southern leucophaea of Abbot & 

 Smith, but one or two specimens from Georgia and Alabama were evi- 

 dently different, or suggested a rather wide variation. The achatlna of 

 Harris and Packard is not Abbot &: Smith's species, but is based on speci- 

 mens belonging to Clintonii. The moth described by Dr. Packard as 

 Platycerura furcilla, is apparently related to this group, resembling the 

 European Dasychira pudibimda, but of a more compact, noctuid-like 

 form. Its name is a misnomer, as it is in no wise like Cerura, where it is 

 placed by my old friend Dr. Packard, in whose monograph, admirable for 

 its arrangement of the groups, the genera with furcate anal extension in 

 the naked larva are brought near the group where the anal extension is 

 undivided, evidently correctly. The larva of Platycerura is, however, 

 hairy, as described by Lintner and Thaxter, and resembles the larvae of 

 the Apatelince, where I have placed the genus, I think correctly. None 

 of the European genera examined by me appear identical with Parorgyia, 

 which genus seems an extension of Orgyia, in which the female is winged 

 and the whole form in both sexes stouter. 



