The Blue Heteragrion Damselfly was described in 1989 based on a single specimen, a male that was collected in Veracruz, Mexico. [1]

The species has apparently not been recorded since and might be extinct now.

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References:

[1] S. W. Dunkle: Heteragrion azulum spec nov., a new damselfly from Mexico (Zygoptera: Megapodagrionidae). Odonatologica 18: 195–197. 1989

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edited: 02.05.2022