AQUATIC INSECTS IN NEW YORK STATE Mppys 
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, Psyche, 5:246 (a full descrip- 
tion) 
Poo Calopteryx dimidiata, race apicalis Calvert,. Am. 
Ent. Soc. Trans. 20:228 
ics ealopiteryx 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 likely to be met with 
only at the lower altitudes in the southern parts of the State. 
Its nymph is unknown. 
Calopteryx aequabilis Say 
1889 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 
Raquette 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. aequabilis. By way of de- 
