AQUATIC INSECTS IN NEW YORK STATE 223 



Calopteryx apicalis Burmeister 



1839 Calopteryx apicalis Burmeister, Handb. Ent. 2:826 (original 



description) 

 1861 Calopteryx apicalis Hagen, Synopsis Neur. N. Am. p.56 



(description) 

 1875 Calopteryx apicalis Hagen, Bost. Soc. Nat. Hist. Proc. 



18:21 (bibliography and distribution) 

 1889 Calopteryx apicalis Hagen, Psycbe, 5:24G (a full descrip- 

 tion) 

 1893 Calopteryx dimidiata, race apicalis Calvert, Am. 



Ent. Soc. Trans. 20:228 

 1895 Calopteryx dimidiata, race apicalis Calvert, N. Y. 



Ent. Soc. Jour. 3:42 (listed from Westchester county) 

 1900 Calopteryx dimidiata, race apicalis Williamson, 



Dragon Flies Ind. p.253 (description) 



This southward ranging species seems lilcely to be met with 

 only at the lower altitudes in the southern parts of the State. 

 Its nymph is unknown. 



Calopteryx aequabilis Say 



1839 Calopteryx aequabilis Say, Acad. Nat. Sci. Phila. Jour. 

 8:23 



1861 Calopteryx aequabilis Hagen, Synopsis Neur. N. Am. p.58 



1875 Calopteryx aequabilis Hagen, Bost. Soc. Nat. Hist. Proc. 

 18:21 (bibliography and distribution) 



1889 Calopteryx aequabilis Hagen, Psyche, 5:246 (full descrip- 

 tion) 



1899 Calopteryx aequabilis Kellicott, Odon. Ohio, p.9 (descrip- 



tion) 



1900 Calopteryx aequabilis Williamson, Dragon Flies Ind.- p.252 



(description) 

 1895 Calopteryx aequabilis Calvert, N. Y. Ent. Soc. Jour. 3:42 

 (listed from Keeseville) 



This species is common near Axton along Stony brook and 



Eaquette river. At Saranac Inn, 15 miles farther north, 



but two or three specimens were taken during the entire season. 



On July 31, 1900 Mr Betten and Mr Swett made a special trip 



down to Axton to get its nymph. All the specimens they brought 



back to Saranac Inn were kept there till the close of the season 



of our work, but failed to transform. They showed however a 



greater length of basal segment of antennae than the nymphs of 



C. maculata found at Saranac Inn, and have therefore been 



referred by supposition to C. a e q u a b i H s . By way of de- 



