Paropsisterna sp. (genus)

A leaf beetle at Black Range, NSW

Paropsisterna sp. (genus) at Black Range, NSW - 11 Nov 2020 11:00 AM
Paropsisterna sp. (genus) at Black Range, NSW - 11 Nov 2020 11:00 AM
Paropsisterna sp. (genus) at Black Range, NSW - 11 Nov 2020 11:00 AM
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Identification history

Paropsisterna sp. (genus) 19 Apr 2023 KimberiRP
CHRYSOMELIDAE (family) 13 Nov 2020 StephH

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User's notes

I think this is a paropsisterna species. Looks like octosignata but it only has six spots not eight, so maybe sexosignata? About 11mm long.

1 comment

martinl wrote:
   29 Aug 2024
P sexpustulata (Marsham, 1808) has bright spots. P. rufobrunnea (Blackburn 1898) is brown without any spots whatsoever. These have identical shape and genitalia and are possibly the same species. However populations are quite distinct. Sexpustulata never occus into Victoria and rufobrunnea is scarce in NSW, although a few near ACT. There are several records of this lightly spotted species, with varying degrees of brightness, impossible to place in one or the other. A dissection will fail to make a determination, since genitalia are identical anyway. If they are synonymized, which I doubt, since they look so different, P. sexpustulata will be the senior synonym, and the true name. The lightly spotted form occurs in Victoria here. https://www.inaturalist.org/observations/110088578 .
NSW here https://www.inaturalist.org/observations/148493686

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