. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 497 Helocordulia uhleri Selys 1871 Cordulia uhleri Selys, Acad. Belg. (2) Bui. 21:274 1890 Neurocordulia uhleri Beutenmiiller, Dragon flies vs mosquitos, p. 164 (listed from New York) 1895 Neurocordulia uhleri Calvert, N. Y. ent. soc. Jour. 3:46 (listed from New York) This species was not uncommon in Little Clear creek on the hatchery grounds. Imagos were seen flying a few times about the banks of Little Clear pond close in shore and low above the water. They are so swift and agile, and their win
. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 497 Helocordulia uhleri Selys 1871 Cordulia uhleri Selys, Acad. Belg. (2) Bui. 21:274 1890 Neurocordulia uhleri Beutenmiiller, Dragon flies vs mosquitos, p. 164 (listed from New York) 1895 Neurocordulia uhleri Calvert, N. Y. ent. soc. Jour. 3:46 (listed from New York) This species was not uncommon in Little Clear creek on the hatchery grounds. Imagos were seen flying a few times about the banks of Little Clear pond close in shore and low above the water. They are so swift and agile, and their wings are so transparent that the eye follows them with difflculty. They are not very difficult to capture however, if one will place himself beside a regular " beat", and bring his net up behind the dragon fly with a quick stroke when it is passing. I found the ima- gos showing no disposition to avoid me even after escaping a stroke of the net several times. Twice I saw three males chasing one another up and down Little Clear creek, and had little difficulty in capturing them. The nymph was not reared. Some of them, apparently about grown, were kept through the season without result. Apparently, the season for their transformation was over before any were found, There can be. Fig 22 Parts of nymph of Helocordulia uhleri Selys. a dorsal view of the head; h labium, from within, details in part omitted on the right; c a single tooth from the front border of the lateral lobe of the labium ; d dorsal view of the abdomen ; e lateral view of apex of abdomen, to '?Show better the dorsal hooks scarcely a doubt, however, as to the correctness of the reference of them to this species, when one considers that the only other corduline observed here hke this one in size was D . libera, which I reared. The nymphs live in the borders of the creek, mainly in the shallow places, filled with red-rotten vegetable debris —the haunts of the giant. Please note that these images are extracte
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