. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 499 genitalia of both sexes of the five species listed below. These are the characters most used in characterizing them, and are the ones most reliable in determining specimens. These figures show the appendages to be unusually well marked with individuahty. The nymphs of this genus offer an open field for study by collectors in boreal latitudes. Four species, tenebrosa, walshii, linearis and e 1 on gata, are recorded from the state. To this I have nothing to add but a new locality for the last n


. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 499 genitalia of both sexes of the five species listed below. These are the characters most used in characterizing them, and are the ones most reliable in determining specimens. These figures show the appendages to be unusually well marked with individuahty. The nymphs of this genus offer an open field for study by collectors in boreal latitudes. Four species, tenebrosa, walshii, linearis and e 1 on gata, are recorded from the state. To this I have nothing to add but a new locality for the last named, and a partial life history of it. One other species occurs farther southward, and is almost certain to be taken in this state eventually, and is therefore included among the species listed, below. Somatochlora elongata Scudder Plate 21, fig. 15 1866 Cordiilia elongata Scudder, Bost. soc. nat. hist. Proc. 10; 218 1895 Somatochlora elongata Calvert, N. Y. ent. soc. Jour. 3: 46 (listed from Ithaca) The few imagos I saw of this species were flying with great swiftness about the borders of Bone pond. The single nymph I found was taken !^:!=i^. Fig, 23 Somatochlora elongata Scudd., end of abdomen; d and e of male;/of female from Little Clear pond, as stated above, and transformed July 5. A cast nymph skin was found later in the season on the north side of the outlet of Little Clear, sprawUng on a bed of moss but a few inches above the water Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer


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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience