Blue Dasher dragonflies (mating pair)

A mating pair of Blue Dasher dragonflies (Pachydiplax longipennis) was spotted along the boardwalk in the central wetland area hemi-marsh at Huntley Meadows Park on 10 September 2014.

The pair is shown “in wheel.” All odonates (dragonflies and damselflies) have a 10-segmented abdomen, numbered from front to back: male dragonfly secondary genitalia are located in segments two and three (2 and 3); female genitalia in segment eight (8). Therefore, the male dragonfly is on top; the female is on the bottom.

Blue Dasher dragonflies (mating pair, in wheel)

Male dragonflies have three terminal appendages, collectively called “claspers,” that are used to grab and hold female dragonflies during mating: an upper pair of cerci (“superior appendages”) and a lower unpaired epiproct (“inferior appendage”).

Blue Dasher dragonflies (mating pair, in wheel)

Copyright © 2015 Walter Sanford. All rights reserved.

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