Friday, August 21, 2015

Marl Pennant

Erika and I became aware of Marl Pennants during one of our later March visits to the Bailey Tract on Sanibel Island. We met another dragonfly enthusiast in the field and we owe our identification to that gentleman. This species is found along Atlantic and Gulf coastal areas, across Mexico, and south through the Caribbean  to Belize and Venezuela (Paulson 2011). They are found in brackish and fresh water and often perch, like this one, on the tips of vegetation. The dark “W” marking is a good field mark of the species. Marl is a calcium carbonate or lime-rich mud; it is unclear if this substance is critical for this dragonfly.

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