The Green-striped Darner is a Harlequin or Blue Darner that has a primarily green thorax. It is very similar to the Canada Darner except that the front thoracic stripe is all green and has a shallower notch. The rear thoracic stripe is often blue-green at the top with green below
Canada Darner: These two species are difficult to differentiate between unless you have the specimen in hand. Male Canada Darner's thorax are often blue compared to the green thorax of the Green-striped Darner but this is not always the case. Females of both species are typically mostly green.
Lake Darner: The Lake Darner is slightly larger than the Green-striped Darner. The Lake Darner also has a primarily blue thorax with a deeply notched front stripe compared to the Green-striped which has a predominantly green thorax with a slightly notched front stripe.
Lance-tipped Darner:Green-striped Darners are slightly bigger than Lance-tipped Darners. With a variety of different colored forms and similar shaped thoracic stripes it is difficult to distinguish between the two species especially in flight or from a distance
Males spend much of their time in flight, patrolling lakeshores and river and stream edges, and catching prey and eating it while flying. They will sometimes join feeding swarms made up of several species of dragonflies. At night they often perch on tree trunks
Ponds, small lakes, slow rivers and streams. Often associated with sedges
Mating takes place near water. Female oviposits eggs one at a time in the stems of aquatic vegetation just above or just below the waterline
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Range maps and checklists courtesy of Odonata Central. Copyright © 2016 OdonataCentral. All Rights Reserved. Abbott, J.C. 2006-2018. OdonataCentral: An online resource for the distribution and identification of Odonata. Available at www.odonatacentral.org.