Idaea costaria

White-edged Wave at Wanniassa, ACT

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Identification history

Idaea costaria 3 May 2025 donhe
Idaea costaria 3 May 2025 WendyEM
Idaea (genus) 17 Nov 2018 ibaird
Unverified 16 Nov 2018 JohnBundock

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User's notes

About 13mm across.

5 comments

donhe wrote:
   17 Nov 2018
I reckon I can just see a white edge to the costa on the right forewing.
ibaird wrote:
   17 Nov 2018
Agreed. But can it be separated from I. inversata?
GlennCocking wrote:
   17 Nov 2018
The accepted wisdom is that scales between the bases of the antennae is light in the case of inversata and light in the case of costaria.
ibaird wrote:
   18 Nov 2018
I think you may have meant 'darker' in the case of I. inversata. Difficult to see the scales between the bases of the antennae in this case.
GlennCocking wrote:
   18 Nov 2018
Yes, sorry for typo

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Location information

Sighting information

Additional information

  • 12mm to 25mm Animal size

Species information

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  • Verified by an expert moderator
  • Nearby sighting(s) of same species
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