Robust Spreadwing

Lestes dryas (Kirby, 1890)

DESCRIPTION

Medium-sized (35-40 mm), this species has a bright metallic green body and black pterostigmas. It can be separated from the similar L. sponsa by greater robustness and above all by the shape of the abdominal appendages tips: the lower ones are, in males, curved towards the inside and flat. In females the ovipositor is longer than the 10th abdominal segment.

PHENOLOGY

In its genus this species is the earliest, in flight from May to September.

HABITAT

It can be found mostly in water bodies subject to extended dryness with abundant vegetation.

DISTRIBUTION

This species is widespread in the northern hemisphere, northern America included. It is rather localized in the Cuneo region. It can be observed both in the plain area habitats and in some alpine areas, with an extreme altitude of 1838 meters above sea level at Villazzo lake, in the Vermenagna valley.