Ectropis excursaria at Wanniassa, ACT

Common Bark Moth at Wanniassa, ACT

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Identification history

Ectropis excursaria	13 Nov 2017	GlennCocking
Ectropis excursaria	13 Nov 2017	ibaird
Ectropis bispinaria	13 Nov 2017	JohnBundock

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2 comments

ibaird wrote:

13 Nov 2017

I am suggesting this speciment may be E. excursaria rather than E. bispinaria based on the following diagnostic reasons using criteria from the supporting CD to Moths Victoria Part 7 entitled Éctropis species', because::-
1. The main black forewing line has a strong kink (applies to both species);
2. In E. bispinaria the main black hindwing line has a dip in it and is marked with spots; whereas
3. In E. excursaria the main black hindwing iline is plain without spots) and sloping with a 'step'' at the (outer) end.
Both the males of the two species have antennae with fine pectinations, short in bispinaria and long in excursaria - but that difference is not much use in this case.

JohnBundock wrote:

14 Nov 2017

The moth obligingly turned around this afternoon and attached itself to the glass of the door, exposing its underneath.

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