112 



The name pampolycala should be restricted to the male type which 

 lacks, or practically lacks, the black filling between the stigmata, so 

 that the name will not represent a straight synonym. The female type 

 has the black filling between the stigmata and is the normal form of 

 socorro. 



Such restriction of names leaves four males and four females 

 of the original types of socorro under that name; and one of the 

 original male types under the form name pampolycala. 



The species has a non-tuberculate but strongly roughened frons, 

 simple, ciliated male antennae and a bifurcate male clasper. Refer- 

 ence to Cliorirjagrotis appears correct. 



Chorizagrotis salina Barnes. 



1904, Barnes, Can. Ent., XXXVI, 172, RInsagrotis. 



1915, B. & McD., Contr. N. H. Lep. N. A., I, (4). 21, pi. IX, f. 3, (type), 



Rhisarirotis. 

 1917, B. & McD., Check List, p. 44, No. 1381, Chorizagrotis. 



arahella Dyar. 



1910, Dyar, Proc. U. S. N. M., XXXVIII. 237, Etixoa. 



A peculiar species with no close affinity. There are three speci- 

 mens of salina in the Barnes Collection which show considerable vari- 

 ation and the authors are able to match all of the maculation of arahella 

 except the reniform which is a little larger in Dr. Dyar's type. The 

 three aforementioned specimens of salina and the type of arahella are 

 all of the specimens known to the authors. 



This species has a non-tuberculate but strongly roughened frons 

 and simple ciliated antennae in the males. Reference to Chorizagrotis 

 is therefore preferable to Eu.voa, if Smith's subdivisions are followed. 



RhIZAGROTIS PROCLIVIS Sm. 



1887, Sni., Proc. U. S. N. M., X, 453. Agrotis. 



1903, Hamp., Cat. Lep. Phal. B. M., IV, 320, pi. LXVII, f. 9, Euxoa 

 (Rhiacia). 



oaxacana Schs. 



1898, Schs., Jour. N. Y. Ent. Soc, VI, 107, Agrotis. 



1903, Hamp., Cat. Lep. Phal. B. M., IV, 320, proclivis, Euxoa (Rhiacia). 



