Ill 



apparently simply redescribed by Dyar, in Hampson, (1903). In 

 view of Packard's figure, these larvae probably are not dissona or form 

 opipara. 



The name nonvegica Stgr. is included here only on the strength 

 of the citations by Hampson (1903) and Warren (1914). The name 

 may refer to a European species not found in North America. 



Genitalic slides and intermediate specimens indicate that opipara 

 is only a maculation form of dissona which is a very variable species 

 in color as well as maculation, varying from pale violaceous-grey to 

 deep slate-grey. Two violaceous-grey males in the Barnes Collection 

 are tinted with rufous one female is deep red-brown, another is deep 

 slate-grey. 



Chorizagrotis SOCORRO Barnes. 



1904, Barnes, Can. Ent., XXXVI, 171, Rhizagrotis. 



1912, B. & McD., Contr. N. H. Lep. N. A., I, (4), 16, pi. VI, f. 20, (type 



$ ), Rhisagrotis. 

 1917, B. & McD., Check List, p. 44, No. 1380, Chorizagrotis. 



pampolycala Dyar (partim. 9 nee $ ). 



1912, Dyar, Proc. U. S. N. M., XLII, 57, Lycophotia. 



form PAMPOLYCALA Dyar (partim. $ nee 9 ). 



1912, Dyar, Proc. U. S. N. M., XLII, 57, Lycophotia. 



socorro Barnes (partim.). 



1904, Barnes, Can. Ent, XXXVI, 171, Rhisagrotis. 



The authors are indebted to Prof. M. Draudt for calling this syn- 

 onymy to their attention. Mr. Schaus has kindly compared two of 

 the types of socorro with the type S and type 9 of pampolycala in 

 the National Museum. 



The types of socorro mainly represent the form with the space 

 in the cell between the stigma filled with black. One type lacks the 

 black filling between the stigmata. A lectotype is hereby designated, 

 one specimen, a male with black filling between the stigmata, agreeing 

 with the female figured by Barnes and McDunnough (1912), except 

 that the secondaries are somewhat paler. The figured specimen rep- 

 resents the form which is apparently the normal Arizona female. The 

 male lectotype represents the corresponding male. 



