|Aeshna verticalis (Hagen, 1861),
the Green-striped Darner, is a species of dragonfly in family Aeshnidae.
Found in north central and northeastern United States and parts of southeast
Canada including Ontario, Quebec, and New Brunswick.
Typically length at 70-80 mm, The
Green-Striped Darner is a creature of boggy and marshy areas. In late afternoon
and early evening, they may be the last dragonflies on the wing at a given
location. Males patrol constantly, seeking to keep other males away from
prime ovipositing sites in their territories. Both males and females may
be seen hanging vertically from vegetation or on tree trunks.
Aeshna verticalis has lateral thoracic
stripes all green and has a characteristic shape. Obtusely notched with
wide dorsal posterior extension. Some markings may be green in female.
The Green-Striped Darner is very similar to the Canada Darner (A. canadensis)
and the Lake Darner and is difficult to separate from the Canada Darner
in the field. Green-Striped Darners differ subtly from Canada Darners in
the color and pattern of the thoracic stripes, color of the face, and details
of the terminal appendages. It is difficult to separate females from Canada
Darner females with green stripes. Lake Darners are bigger and they have
a black line across their face.
Found at spring-fed ponds, marshy
meadows, marshy lakes, ponds, and slow streams bordered by sedges, this
species ranges is widely distributed throughout its range.