Somatochlora incurvata

Somatochlora incurvata is a Smaragdlibellenart from the family of dragonflies Falk ( Corduliidae ), which belong to the dragonfly ( Anisoptera ). It is native to North America.

Features

The imago of Somatochlora incurvata measures 49-59 millimeters, of which 38 to 47 millimeters on the abdomen (abdomen) accounts for what is average within the genus. The brownish abdomen is on the first segments brighter than the rear. In addition a lighter patterning of the abdomen which is composed as follows: A bright apical ring is located together with two spots directly above and below the auricle on the second segment. The latter stains partially fuse. In the third segment are typical in the genus triangles that are slightly shorter than normal. Between the fourth and the fifth and seventh and eighth small segment yellow- brown spots are situated at the base of the segments.

The part of the chest (thorax ), on which the wings begin, the so-called Pterothorax is at the front of brown, colored diffuse laterally. The brownish part metallic shine green. Overall, he is covered with small white hairs. The hind wings measure 31 to 37 millimeters. The wings are transparent and only partially whitewashed brownish.

In very dark face, the forehead ( frons ) is colored in three colors yellow, brown and metallic green. The Anteclypeus is yellow and the Postclypeus is brown and margins just below yellow. The remaining parts of the head are black.

Distribution and flight time

The species is widespread in the United States in the states of Maine, Massachusetts, Michigan, New York, Ohio, Pennsylvania and Wisconsin as well as in Canada in the provinces of New Brunswick, Nova Scotia, Ontario and Québec. She prefers fens and sedge. She flies from June to October.

Similar Species

Somatochlora incurvata is very similar to the type Somatochlora forcipata. A reliable differentiation is possible based on the genitals. Another indication is the size of the Art