196 NEW YORK STATE MUSEUM 
Aeschna sp. (?) Nymphs of Aeschna have already been 
noted as occurring in the food of bullheads and sunfish in Old 
Forge pond. They were quite common in Bald Mountain pond 
and in Lily pond, and about every pond near Old Forge adults 
could be seen coursing on swift strong wing all day long the 
summer through. 
Anax junius. This species, so abundant through other parts 
of the State, is not common in the Adirondacks. Two nymphs 
were taken in Beaver Meadow brook .on June 30th; no adults 
were seen. z 
Boyeria vinosa. A single young nymph of this species was 
taken in Moose river on the 9th of July. A few adults were 
seen later coursing over the stream. 
Didymops transversa. Among the larger species coursing 
about the borders of Old Forge pond, this one was conspicuous. 
It was common through the latter part of June, and a number 
of cast skins were seen sticking to the bushes along the bank. 
Helocordulia uhleri. ‘This species frequented waters where the 
banks were fringed with sphagnum. It was seen in a few places 
up the channel from Old Forge pond, but not at the pond itself, 
and it was not uncommon at the Twin ponds and at Bald 
Mountain pond. | 
Tetragoneuria cynosura. This species was fairly common 
about Old Forge pond, where scattering cast skins could be 
found along the shore, but there was no abundance of it to be | 
at all compared to the condition described at Saranac Inn in 
Bulletin 47 of this museum. 
Cordulia shurtlefh. This handsome bronzy green species is 
another denizen of sphagnum bordered waters, and was com- 
mon at Twin ponds and at Bald Mountain pond. 
Libellula basalis. ‘This species is rare in the Adirondacks, one 
or two specimens were seen, but not captured; nevertheless, 
there is no doubt about the determination. 
Libellula pulcHella. Common about every pond and com- 
monly found foraging along the roadside at considerable dis- 
tances from water. 
Plathemis trimaculata. Another pond-loving species associ- 
ated with the preceding. 
Leucorhinia glacialis. This species was found only at the 
Lily pond, and only a few specimens were seen. _ 
Leucorhinia frigida. This species was likewise found only 
at Lily pond, but it was common there, and moreover it was 
