Double-Striped Bluet
Encyclopedia
The Double-Striped Bluet (Enallagma basidens) is species of damselfly in the family
Coenagrionidae
. This species grows to lengths 21–28 mm. Its common name from the peculiar black shoulder stripe, which is divided in two by a thin blue stripe. This is the key identification characteristic; no other damselfly has a shoulder stripe that looks like this one.
Mature males have an abdomen that alternates black and blue. The final segment of the abdomen is blue below and black above, while segments 8 and 9 are all blue.Females and immatures are tan to olive or brown, but like the mature males they have the divided shoulder stripe.
These damselflies are most typically found alongside lakes and ponds, but are occasionally found next to slow-moving streams, too.
Family
In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children...
Coenagrionidae
Coenagrionidae
The insect family Coenagrionidae is found in the order Odonata and the suborder Zygoptera. The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. There are more than 1100 species in this family, making it the largest damselfly family...
. This species grows to lengths 21–28 mm. Its common name from the peculiar black shoulder stripe, which is divided in two by a thin blue stripe. This is the key identification characteristic; no other damselfly has a shoulder stripe that looks like this one.
Mature males have an abdomen that alternates black and blue. The final segment of the abdomen is blue below and black above, while segments 8 and 9 are all blue.Females and immatures are tan to olive or brown, but like the mature males they have the divided shoulder stripe.
These damselflies are most typically found alongside lakes and ponds, but are occasionally found next to slow-moving streams, too.
Distribution
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