Zebra Clubtail – OdoNotations

The Common Sanddragon is one of the dragonfly species in the Algonquin Park field that is not found in the Ottawa-Gatineau region. A member of the clubtail family, it is well-marked with a mottled green and brown thorax reminiscent of a Harlequin Darner and uniquely-shaped markings down the length of the abdomen to segment 7: they look like goblets in the male, and start out as goblet-shaped in the female but gradually lose the stem. Their legs are very short for a dragonfly, and mature males have green eyes while females have gray or brown eyes. The appendages in both sexes are pale, and they are the only dragonfly in our region which has pale appendages, a mottled thorax, and brown spots at the base of each wing. Its larvae live in rivers, lakes, and streams with sandy bottoms, and due to its short legs, the adults perch horizontally on the sandy beaches and banks of its rivers rather than hanging from trees or in the vegetation. At the time of the printing of the first edition of the Algonquin field guide, it had not been recorded within the park and was only known from a few sites in Peterborough County and a single record from Windsor in Ontario’s deep south.

Gatineau Park is a special place for dragonflies – many species of the National Capital Region can be found there that aren’t found on the Ontario side of the Ottawa River, while others seem to be much more common there than in Ottawa. Chris Traynor has been exploring the park quite a bit these past couple of years, searching for dragonflies that breed in the quiet lakes, sluggish streams, and fast-flowing creeks of the Gatineau Hills. Not surprisingly, he has found a good number of species that have not been reported in Ottawa, such as Eastern Least Clubtail, Mustached Clubtail, Beaverpond and Harpoon Clubtails, and even a couple of snaketails. Many of these species prefer clear, swift-moving streams with rocky bottoms, which might be the reason for their absence in Ottawa; the Ontario side of the National Capital Region is relatively flat, with more marshes and slow-moving, mucky streams winding through suburbs and forest rather than down the foothills and escarpments which form the Canadian Shield. One of Chris’s best finds was a portion of Meech Creek where Zebra Clubtails and Fawn Darners are quite common, with the occasional Dragonhunter and Violet Dancer. I accompanied him twice to this magical spot, once during the August long weekend last year, and once again this year. As I never did get around to posting those photos last year (remember I mentioned I’d fallen behind?), I will incorporate both sets of photos in this post.