I5O CURRIE [22O] 



One male from Kadiak, July 20 ; one female, Unga Island, July 17? 

 collected by Prof. W. E. Ritter. The National Museum also contains 

 one male and three females from Nushagak River, Alaska, collected 

 by McKay (No. 97). 



This species occurs throughout the northern portions of Europe, 

 Asia, and North America. 



The pterostigma is brown, paler in the female specimen. 



^SCHNA CONSTRICTA (Say). 



jEshna constricta SAY, Journ. Ac. Phila., vm, p. n, 1839. 



jEschna constricta KIRBY, Synonymic Cat., p. 88, 1890. CALVERT, Trans. 



Am. Ent. Soc., xx, p. 249, 1893. KELLICOTT, Bull. Ohio State Univ. 



(4), No. 5, p. 83, March, 1899. WILLIAMSON, 24th Ann. Rep. Dept. 



Geol. and Natural Resources, Ind., 1889, p. 305, PI. iv, fig. 10, PI. VII, 



figs. 14 & 15, 1900. 



Two males, Kadiak, July 20, and Cook Inlet, July 21 ; two females, 

 Kadiak, July 20. 



This is a common species in the United States and has also been re- 

 corded from British Columbia, Kamchatka, and Siberia. 



The pterostigma in the males is black ; in the females yellowish- 

 brown. 



Family LIB ELL ULIDsE. 



Subfamily CORDULIN^E. 

 CORDULIA SHURTLEFFI Scudder. 



Cordulia shurtleffi SCUDDER, Proc. Bost. Soc. Nat. Hist., x, p. 217, 1866. 

 SELYS, Bull. Acad. Belg. (2), xxxi, p. 265, 1871. KIRBY, Synonymic 

 Cat., p. 52, 1890. 



One female, Kukak Bay, June 2g-July 5 ; one female, Fox Point, 

 July 26. A female, labeled ' Alaska ' and determined as this species, 

 by Dr. P. P. Calvert, is in the collection of the U. S. National Mu- 

 seum ; it was received from the U. S. Coast and Geodetic Survey, 

 through Professor T. C. Mendenhall, Superintendent. 



This species has also been reported from Nova Scotia, Great Slave 

 Lake (Fort Resolution), New Hampshire, Maine and Pennsylvania. 1 



The wings are subfumose in the specimen from Fox Point. 



SOMATOCHLORA ALBICINCTA (Burmeister) . 



Epophthalmia albidncta BURMEISTER, Handb. Ent., n, p. 847, 1839. 



Cordulia albidncta HAGEN, Syn. Neur. N. Am., p. 138, 1861. 



Cordulia eremita SCUDDER, Proc. Bost. Soc. Nat. Hist., x, p. 215, 1866. 



SCUDDER, Proc. Bost. Soc. Nat. Hist., xi, p. 300, 1867. 

 Epitheca albidncta SELYS, Bull. Acad. Belg. (2), xxxi, p. 303, 1871. 

 Somatochlora albidncta KIRBY, Synonymic Cat., p. 49, 1890. 



'Ent. News, ix, p. 184, September, 1898. 



