The Common Whitetail - Libellula lydia - is a species that exhibits extreme sexual dimorphism.
The males have a single large black patch on each wing, and their abdomens develop extreme pruinosity - a blue-white waxy coating - as they mature.
The females in contrast look very much like female Twelve-spotted skimmers (Libellula pulchella). The only obvious difference is in the abdominal stripes - whitetails have an interrupted line while the 12-spots have a continuous line.
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Categories & Keywords
Category:Animals
Subcategory:Insects
Subcategory Detail:
Keywords:Anisoptera, Dragonfly, Libellula lydia, Odonata