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Epitheca canis
Beaverpond Baskettail

(McLachlan, 1886)
Corduliidae, Emerald Family
photo of Male beaverpond baskettail
Male beaverpond baskettail — Dan Jackson
The baskettail species that occur in Wisconsin are very similar to each other, requiring in-hand examination to be sure about species identification. They differ primarily in the shape of the terminal appendages and presence or absence of dark markings on the wings. They are medium-sized dragonflies with dark brown bodies and small yellow markings on the sides of the abdomen. There is some disagreement among odonatists as to whether they should be placed in the genus Epitheca or the genus Tetragoneuria.
Status-Global/State:
Global: G5 Wisconsin: S5
Distinguishing Characteristics:
The black abdomen is constricted just below the base especially in males. The length of the body varies from 1.7 to 1.9 inches. The wings varies in shades from clear to amber-brown, depending on age and gender. For example, the wings of older females are often washed with brown.
Description of Habitat/Range:
This species is commonly found throughout southern Canada and northern United States. It prefers bog ponds, slow streams, and marshy lakes. It is common throughout most of Wisconsin, especially in the north.
Flight Season:
Mid-May to late July in Wisconsin. The flight period is similar to the spiny baskettail's.
(Click on photos to enlarge)
photo of Male beaverpond baskettail
Male beaverpond baskettail — Dan Jackson
photo of Immature male beaverpond baskettail
Immature male beaverpond baskettail — Dan Jackson
photo of Immature male beaverpond baskettail
Immature male beaverpond baskettail — Dan Jackson
photo of Close-up of male beaverpond baskettail thorax
Close-up of male beaverpond baskettail thorax — Dan Jackson
photo of Side (top image) and top view of cercus for male beaverpond baskettail
Side (top image) and top view of cercus for male beaverpond baskettail — Dan Jackson
photo of Female beaverpond baskettail
Female beaverpond baskettail — Dan Jackson
photo of Female beaverpond baskettail
Female beaverpond baskettail — David Hanson
photo of Top and bottom view of female beaverpond baskettail abdomen tip
Top and bottom view of female beaverpond baskettail abdomen tip — Dan Jackson
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