Several riverine species in the insect order Odonata (dragonflies and damselflies) are recognized as being of conservation concern in the Northeast. Along the Connecticut River, most data on these species have come from the southern portion of the river that passes through Connecticut and Massachusetts, while the northern portion has been poorly sampled until recently. In this paper, we summarize recent surveys along the Vermont—New Hampshire stretch of the river and place these in the context of known distributional data for the river as a whole. Our focus is on species typical of large rivers, with a particular focus on members of the family Gomphidae (clubtails). Also included is information on the first Vermont or New Hampshire records of three species—Enallagma antennatum, Enallagma durum, and Stylurus amnicola—and the first upper river records for several other species.
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