Enallagma semicirculare

Selys, 1876

Claw-tipped Bluet

Enallagma semicirculare, commonly known as the -tipped bluet, is a in the . It occurs primarily in Mexico and the southwestern United States, with documented records from Arizona, New Mexico, and southern Texas. The species was described by Edmond de Sélys Longchamps in 1876. Like other members of the Enallagma, it is a small, slender damselfly associated with freshwater .

Enallagma semicirculare by the Smithsonian. Used under a CC0 license.

Enallagma semicirculare 7 January 2016 by (c) Laura, some rights reserved (CC BY). Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Enallagma semicirculare: //ɛˈnæləmə sɛˌmɪsɝˈkjulɛri//

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Identification

The specific epithet "semicirculare" and "-tipped bluet" suggest distinctive features of the male appendages, though detailed diagnostic characters are not documented in available sources. As with other Enallagma , identification typically requires examination of male appendages and female mesostigmal plates. Comparison with bluets in the southwestern United States and Mexico would be necessary for accurate field identification.

Images

Distribution

Mexico; southwestern United States (Arizona, New Mexico); southern Texas. GBIF records indicate presence in Oaxaca, Mexico.

Similar Taxa

Enallagma civile (Familiar Bluet)Overlaps in range in southern Texas; both are small in the Enallagma requiring careful examination of appendages for separation.
Other Enallagma species in the southwestern United StatesMultiple occur in the region; male appendage structure is the primary distinguishing feature among .

More Details

Taxonomic History

The was described by Edmond de Sélys Longchamps in 1876, a prominent Belgian who described numerous species. Rosser Garrison published a taxonomic revision of the Enallagma in 1984, which included this species.

Data Availability

Detailed biological information for this appears limited in published literature. Most available information is derived from distributional records and taxonomic databases rather than ecological or behavioral studies.