PHILIP P. CALVERT 383 



segment may have a small black spot on each side in dorsal view (Bradley cf , 

 1 cf Kent, Ohio, 1 cf Bluffton, 4 d^ Pemigewassett, 1 cf Black Lake) ; a mid- 

 dorsal black mark may be present on the hind margin in addition to, or in the 

 absence of, these paired black spots. 



The variations in certain features of the venation are shown in the following 

 table : 



Front Wings 38cfcf 99 9 



M2 arising nearest the 5th postnodal 83.0% 83.3% 



" 4th " 7.8 5.6 



" 6th " 5.2 



" between " 5th & 6th postnodals 2.6 11. 



(Lo-st... 1.3 

 Hind Wings 



M2 arising nearest the 4th postnodal 79.0% 77.7% 



" midway between the 4th & 5th postnodals 7.8 16.6 



" nearest the 5th postnodal 7.8 5.6 



"3rd " 5.2 



Front Wings 



Mia arising nearest the 7th postnodal 42,0% 27.7% 



"8th " 38.0 66.6 



"9th " 13.0 5.6 



"6th " 2.6 



" between " 6th & 7th postnodals 1.3 



(Lo.st... 2.6 

 Hind Wings 



Afla arising nearest the 7th postnodal 52.6% 27.7% 



" 8th " 36.7 72.2 



"6th " 9.1 



" between " 6th & 7th postnodals 1.3 



Material examined: Type, 1 male, Chemo Stream, Bradley, Maine, Juh- 21, 

 1891, taken by F. L. Harvey, in the writer's collection (Academy of Natural 

 Sciences of Philadelphia). Paratypes: New Hampshire, Pemigewassett Pond, 

 Meredith Township, Belknap County, July 9-23, 1917, P. P. Calvert, 4cf , 3 9 . 

 Connecticut, New Haven, June 23, 1904, H. L. Viereck, 1 9 , (Acad. Nat. Sci. 

 Phila.). New York, Black Lake, Sullivan County, August 2, 1898, P. P. Cal- 

 vert, 11 cf. New Jersey, Hurdstown River, September 6, 4cf , and River Styx, 

 September 14, 1 cf , both at Lake Hopatcong, 1902, P. P. Calvert; Clementon, 

 July 22 and September 22, 1899, P. P. C, 2cf. Pennsylvania, Sawkill Pond, 

 Pike County, July 19, 1898, P. P. C. Icf ; Conneaut Lake, August S. 1S99, 



D. A. Atkinson 1 cf (coll. E. B. Williamson). Ohio, Kent, June 22, 1900, J. S. 

 Hine, 2 cf . Ontario, Toronto, Grenadier Pond, August 16, 1907, E. M. Walker, 

 Icf. Indiana, Angola, July 16, 1910, E. B. \^'illiamson, Icf, 19; Simonton 

 Lake, July 30, 1899, R. J. Weith, 1 cf ; Bluffton, June 23, 1907, 2cf, 2 9, July 

 24, 1904, 2cf, 2 9, E. B. WiUiamson; Rome City, July 28, 1907, Icf, 19, 



E. B. Williamson. (The specimens from Ohio, Ontario, Indiana and Oklahoma 

 in Mr. Wilhamson's coll.) Wisconsin, Washington County, July 29, 1907, 1 



TKANS. .\M. ENT. SOC, XLV. 

 4 



