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Photo#291238
burrower mayfly - side - Hexagenia bilineata - female

burrower mayfly - side - Hexagenia bilineata - Female
World Birding Center at Bentsen-Rio Grande Valley State Park, Hidalgo County, Texas, USA
September 27, 2008
A whole lot bigger than the Baetid I posted earlier today. In North Carolina I have seen incredible mass emergences by mayflies of this family, but in the LRGV the events tend to have a much more modest scale.

Images of this individual: tag all
burrower mayfly - side - Hexagenia bilineata - female burrower mayfly - front - Hexagenia bilineata - female burrower mayfly - dorsal - Hexagenia bilineata - female

Moved
Moved from Common Burrower Mayflies. Thanks again Lloyd!

Hexagenia bilineata
A female subimago.

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