Pararguda nasuta

Wattle Snout Moth at Amaroo, ACT

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Pararguda nasuta donhe 9 Aug 2023
Pararguda nasuta chriselidie 9 Aug 2023

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User's notes

A caterpillar that I took in last year, just before it formed a cocoon. The adult (photo 4 and 5) and cocoon looked like that of the Pararguda nasuta specimens that I had reared before. The caterpillar looked quite different than the bright green ones I had earlier (sighting 4434365).

4 comments

   9 Aug 2023
Congratulations on the successful rearing. The difference in larval colours is interesting, suggesting that the same name is being applied to two different species.
   9 Aug 2023
Thanks donhe, this is one I've had my eye on for a while. And yes, it does seem like there are several colour variations. I reared the caterpillars in sighting 4434365 from a clutch of six eggs, which led to four green ones and two brown-red ones. They all turned green at the last stage though, I think. But the caterpillar in this sighting is grey, and I've seen this type a few times. This one always appears larger as it squashes itself really flat. Never saw the green ones get quite that flat.
   9 Aug 2023
It is also possible that there is sexual dimorphism. Have you noted any relationship between the colours of the larvae and the sexes of the adults?
   9 Aug 2023
Yes, I thought of that too. As noted above, of the six caterpillars from the one clutch of eggs (previous sighting) four were green and two red-brown initially, all were green by the time of pupation; the outcome was four males and two females - so this may be sex related. The grey caterpillar in this sighting was male, and that was the only one of this type that I was able to rear.
Since there were both green and grey males, the different colouring does not strike me to be sex dependent.

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  • 1 Abundance
  • chriselidie Recorded by
  • Acacia Associated plant
  • None. Associated animal
  • 25mm to 50mm Animal size
  • Male Gender
  • Alive / healthy Animal health

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