174 INSECUTOR INSCITI^ MENSTRUUS 



forms, therein contained, do not conflict with any of those 

 which Mr. Benjamin has in mind. 



Cerura occidentaiis deorum, new subspecies. 



Very similar to occidentaiis gigans McDunnough (Can. Ent., 

 hv, 139, 1922) from Alberta and British Columbia (I possess 

 a specimen from Rossland, B. C.) ; still larger, the inner band 

 as black, much wider and passing straight across the wing. 



Type, male, No. 25795, U. S. Nat. Mus. ; Manitou, Colorado, 

 May 3, 1891, taken at electric-light (H. G. Dyar). 



Cerura scolopendrina pluvialis, new subspecies. 



The fore wings appear more broadly trigonate than usual; 

 markings diffused and blurred, the three lines beyond the cell 

 not narrowly written as usual, but tending to form dots on 

 the veins. 



Types, two males, No. 25796, U. S. Nat. Mus.; Albina, 

 Oregon, May 18, 1892, taken at electric-light (H. G. Dyar). 



C. scolopendrina scolopendrina pervades the whole of the 

 arid region from southern California to Colorado, Montana 

 (Miles City, C. A. Wiley), eastern Washington (Pullman, 

 C. V. Piper), and Alberta (Red Deer River, F. H. Wolley 

 Dod), as well as going southward to Arizona (Washington 

 Mts.) . The name albicoma Strecker appears a straight synonym. 



Cerura cinerea wileyi, new subspecies. 



A large form like nivea Neumoegen, nearly white, the lines 

 and bands faint, gray and powdery as in meridionalis Dyar, 

 but the terminal dots large and distinct on both wings. 



Types, male and female. No. 25797. U. S. Nat. Mus. ; Miles 

 City, Montana, May 12, 1891 (C. A. Wiley). 



Date of publication, October 28. 1922. 



