Moth - ID needed

[hkmoths]

Field characters are somewhat difficult to pin down (so to speak!). Birders would call it "jizz". (a combination of resting posture, wing shape, pattern, behaviour....).

From a taxonomic perspective, take a close look at the first abdominal segment - on the side - just above the two pale segments (as pointed out by the arrow on the edited photo) and you will see the top half of the tympanal plate (an ear) - it looks pale, flat and slightly recessed. Only Geometroidea and Pyraloidea have abdominal tympanal plates; Noctuoidea have thoracic tympanal plates (and they are different types of ears, too, as well as much more difficult to see).

One "jizz" component - Pyralidoidea (Pyralidae and Crambidae) rest with their antennae along the top of the abdomen, whereas Geometridae rest with their antennae either projecting slightly forward, or tucked under the forewing.

Hope this helps.

cheers,

Roger.