THE CANADIAN ENTOMOLOGIST 



373 



base, but little narrowed distad, the free margin entire, broadly 

 rounded, colour yellowish. 



VENATIONAL DETAILS. (10 cf's 10 $ 's.) 



Measurements. — 10 cf's 10 9 's. Length (without apps.) cf 

 46.5-51.0, 9 46.0-52.0; thorax, cf 8.5-9.0, 9 7.0-8.0; abdomen 

 (without apps.), cf 33-36, 9 34-38.5; hind wing, d" 30-31.5, 9 

 30-32.5 ; sup. apps. d^ 3.6-4; apps. 9 3.4-4.3 ; pterostigma of 

 hind wing, d" 2.5-3, 9 2.5-3; width of hind wing, cT 8.5-9, 9 

 9-10; width of head, cf 7-7.5, 9 7.25-7.6. 



Holotype. — cf , Orono, Me., F. L. Harvey, collection of Dr. 

 P. P. Calvert. Allotype. — 9, Orono, Me., F. L. Harvey, col- 

 lection of Dr. P. P. Calvert ; taken in cop. with holotype. 

 Paratopotype. — cf, June 15, 1891, Harvey, collection of Dr. 

 Calvert. 



I have also examined the following specimens: Oropo, Me., 

 June 18, 1898, Bartle Harvey, 1 9 , (U. S. Nat. Mus.) ; Manchester, 

 Me., Miss M. Wadsv/orth, June 20, 1904, 1 9, (coll. Calvert); 

 Concord, Mass., R. H. Howe, June 18, 1917, 1 9, (teneral) ; id., 

 June 24, 1917, 2 cT's 1 9 ; id., June 4, 1917, 1 9 ; id., June 4, 1918, 

 1 cf 1 9 ; id., June 6, 1918, 1 cf 1 9 ; id., June 9, 1918, 1 cf ; 

 Manistiqua River, Schoolcraft Co., Mich., 2 cf's, (A. F. Combs); 

 Godbout River, Quebec, July 29, 1918, 1 cf 1 9 , (Walker) ; Mer 

 Bleue, near Ottawa, Ont., June 9, 1903, 2 cf's 2 9 's, (A. Gibson); 

 De Grassi Pt., Lake Simcoe, Ont., June 19, 1917, 1 cf , (Walker). 

 Total 13 cf's, 11 9's. 



This species has been confused with both forcipata and semi- 

 circularis. Eastern records of this latter species all belong to 



