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The damselfly has a blue and black abdomen, usually with more black than blue.The black humeral stripes are about a half the width of the blue antehumerals.The tule bluet postocular spots are small and triangular; they are separated by a thin occipital bar.
Coenagrion is a genus of damselflies in the family Coenagrionidae, [2] commonly called the Eurasian Bluets (although three species are found in North America: Coenagrion angulatum, Coenagrion interrogatum, and Coenagrion resolutum [3]). Species of Coenagrion are generally medium-sized, brightly coloured damselflies. [4]
Coenagrionidae is a family of damselflies, also known as pond damselflies, in the order Odonata and the suborder Zygoptera. [2] The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. More than 1,300 species are in this family, making it the largest damselfly family.
Calopteryx is a genus of large damselflies belonging to the family Calopterygidae. The colourful males often have coloured wings whereas the more muted females usually have clear wings although some develop male (androchrome) wing characteristics. In both sexes, there is no pterostigma. [1]
Calopteryx aequabilis, the river jewelwing, is a species of broad-winged damselfly.The species was first described by Thomas Say in 1839. [2] It is one out of the 170 species of the Odonata found from northeastern Alberta to Newfoundland and southward in most of northern part the United States.
Protoneuridae was formerly considered a family of damselflies.Recent taxonomic revisions have classified the species previously placed in Protoneuridae into two existing families - Coenagrionidae and Platycnemididae, both in the superfamily Coenagrionoidea.
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The double-striped bluet (Enallagma basidens) is a species of damselfly in the family Coenagrionidae. This species grows to lengths 21–28 mm. 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.