Thursday, 27 August 2020

Treble-bar/Lesser Treble-bar


I'm having difficulty identifying this moth. Is a Treble-bar or Lesser T-B?


1 comment:

  1. Hello David,

    Although your specimen is probably Lesser Treble-bar going by the way the first cross-bar hits the costa, that isn't always a safe way to tell these two species apart. For males they are really easy to separate by looking at the claspers at the end of the abdomen (explained in the Field Guide).

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