Moth - ID needed

[Sky Blue]

hope that someone can help to ID this moth, life history recorded here

[fluorite]

Parasa hilarata ?
Parasa humeralis ?

[Sky Blue]

Thanks fluorite, a quick search in google show up so many looks alike species of Parasa xx

[hkmoths]

Parasa pseudorepanda group

As noted, a complex group of similar species.

cheers,

Roger.

[Sky Blue]

Thanks Roger

[Oldman]

Just to share, is this the same kind of Moth?
Cheers

[hkmoths]

Not even the same family.

This belongs to Geometridae, subfamily Geometrinae (the Emeralds)

It looks like Rhomborista monosticta (Wehrli, 1924).

cheers,

Roger.

[Oldman]

Not even the same family.

This belongs to Geometridae, subfamily Geometrinae (the Emeralds)

It looks like Rhomborista monosticta (Wehrli, 1924).

cheers,

Roger.

Thanks
jw

[Sky Blue]

hi Roger, how to tell it's belong to family Geometridae

[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.