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Sexual Dimorphism in Moths

Sometimes I'll observe two distinct forms of moth that turn out to be the same species. Initially this was puzzling to me, but I have learned a bit about sexual dimorphism (each gender looking different) in moths, so now when this happens I usually suspect this is what's going on.

Sexual dimorphism is not rare in the animal kingdom. Many people are familiar with sexual dimorphism in birds. Generally males are more colorful, and females are drabber so they are better camouflaged while sitting still on a nest. The Northern Cardinal is a great example of a bird everyone in Oklahoma is familiar with - a bright red male and a tan female. And if you've been lucky enough to see a male Painted Bunting you'll know the male looks like a rainbow. Meanwhile the female is light green all over.

Some birds have size differences between male and female. This is most common with the raptors, where the females are larger than the males. There is an article describing the ...more ↓

Posted on June 18, 2019 15:30 by zdufran zdufran | 2 comments | Leave a comment
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This group is for cataloging the wide range of moth species found in Oklahoma, including all Lepidoptera except for Papilionoidea (Butterflies and Skippers).

Mini zdufran created this project on May 18, 2017

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