16 Psyche [February 



band on the anterior margin, dorsal line and an obsolete line before 

 the wing, black; wings a little dusky, particularly at tip." This 

 represents practically the more characteristic or intermediate form 

 merging into the darker pleuritica on the one hand and the lighter 

 colored ohsoleta on the other. Say's "var. a" I am calling obsoleta. 

 It is the prevailing form of southern Pennsylvania and New Jersey 

 and is the only form found by the writer in southern Virginia and 

 North Carolina. The variety 'pleuritica is the prevailing form from 

 New Jersey northward; it is often confused with pectoralis, a much 

 rarer form, of which I have typical examples from only three locali- 

 ties, and in each case a female, as is the type. In its dorsal thoracic 

 markings it approaches obsoleta, as the anterior marginal band is 

 interrupted in both cases. 



The following records show the northern and southern distribu- 

 tion of the species and its varieties: 



L. cylindrica Say (typical). 



Glen House and Alstead, N. H.; Dummerston, Vt.; Auburndale, 

 Fall River and North Adams, Mass.; Philadelphia, Pa.; Algonquin, 

 111. (Dr. Nason); Minnesota (Washburn); Kansas (Snow). Type, 

 Pennsylvania. I have not seen the specimens from Minnesota 

 and Kansas. 



var. pleuritica Loew. 



Machias, Me.; Mt. Washington, N. H.; Norwich, Vt.; Montreal, 

 Can.; Ithaca, N. Y.; Agricultural College, Mich.; Auburndale and 

 Woods Hole, Mass.; Delaware Water Gap, N. J.; Kansas (Snow). 

 Types, Connecticut, New York. 



var. pectoralis Loew. 



White Mountains, N. H.;Mt. Ascutney, Vt. ; Auburndale, Mass.; 

 Edge Hill, Pa. Type, Washington, D. C. Two specimens (cf 9 ) 

 from Great Falls and Chain Bridge, Va. (N. Banks) have the 

 black of the pleura interrupted below the wings. 



var. obsoleta var. nov. 



Burlington, Vt.; Plymouth, Mass.; Branford, Conn.; Delaware 

 Water Gap, and Clementon, N. J.; Philadelphia and Natrona, Pa.; 

 Potomac Creek and Suffolk, Va., and Hertford County, N. C. 



