Epyaxa sodaliata at Ainslie, ACT

A geometer moth at Ainslie, ACT

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Identification history

Epyaxa sodaliata	20 Mar 2020	GlennCocking
Epyaxa sodaliata	19 Mar 2020	ibaird
Epyaxa subidaria	16 Sep 2019	ibaird
Epyaxa subidaria	16 Sep 2019	jbromilow50

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Author's notes

Looks like the female of a pair of Epyaxa subidaria

5 comments

jbromilow50 wrote:

26 Sep 2019

This looks more like Epyaxa sodaliata as line A is perpendicular to the costa rather than acute (I think).

jbromilow50 wrote:

26 Sep 2019

See MOV 3-27-24 and sodaliata2.pdf in MOV cd.

donhe wrote:

27 Sep 2019

referring to MOV sodaliata3.pdf, I think
A is acute
B is scalloped
C is jagged
so I think it is an Epyaxa species.

jbromilow50 wrote:

28 Sep 2019

For line A is the angle measured exactly where it meets at the costa or the general direction of the first section of the line? For subidaria the general direction seems to be towards the Inner Margin in sodaliata the Outer Margin.

GlennCocking wrote:

20 Mar 2020

I think the trick is to look for a significantly acute angle compared to a perpendicular or very slightly acute angle. Some E. sodaliata specimens, like this one, have a very slightly acute angle. I've tried to summarise general differences between the two species in some comments just added to the two species pages.

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