Cosmaresta callichrysa

Wingia Group at O'Connor, ACT

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Cosmaresta callichrysa ibaird 25 Jul 2019
Cosmaresta callichrysa donhe 25 Jul 2019
Thallarcha phalarota ibaird 7 Jul 2019

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Attracted to UV light at night.

7 comments

   8 Jul 2019
The species is sexually dimorphic- males and females are different and quite variable in their markings. The pectinate antennae indicates this is the male.
   23 Jul 2019
Yes, T. phalarota certainly is a variable species. But I can't find a single specimen amongst ANIC's many that has the narrow subterminal line that this one does - T. phalarota rather has a small white patch on the middle of the termen. But on the other hand I can't match this photo anywhere else in the Arctiinae.
   23 Jul 2019
Yes, only perhaps one or two on the ALA had white extending to a subterminal line - and none to the extent this one shows. But nothing else I could find was close.
   24 Jul 2019
Do the pectinations rule out Cosmaresta callichrysa?
   24 Jul 2019
Good questiion, I would expect so. but I can't see any upturned labial palpi on this specimen either.
   25 Jul 2019
With the foreshortening of a dorsal view, and limited resolution,
the labial palps would be hard to discern, as in Ken's photo at
http://lepidoptera.butterflyhouse.com.au/wing/callichrysa.html
   26 Jul 2019
I can't see palpi to comment either way either way on their form. But Cosmaresta callichrysa males have unusually long cilia on their antennae (as at least some other Cosmaresta do), and all the wing pattern elements visible on these photos match C. callichrysa specimens closely. The fine cilia show more accurately in the second photo, even though it is less focussed. I think there is some shadowing that makes the rami seem artificially thicker in the first photo, reminiscent of Lithosiini.

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Location information

Sighting information

  • 1 Abundance
  • 16 Mar 2018 10:08 PM Recorded on
  • ibaird Recorded by
  • 12mm to 25mm Animal size
  • Male Gender

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