Tortoise Beetle from Australia

Subject: Pretty Beetle
Location: Ferntree Gully, Victoria, Australia
January 27, 2013 7:35 am
I found this very pretty looking beetle on a tree after a hike, my initial thinking is that it may be a form of ladybird or leaf beetle due to it’s shape, but I can’t seem to locate it or anything really close to it.
It has an almost pearl like sheen to it and the outer wing shells are clear at the bottom near its feet.
Anything you could do to help would be greatly appreciated.
Signature: Ian Melbourne

Tortoise Beetle

Dear Ian,
This is most definitely not a Lady Beetle, but we agree that it is a Leaf Beetle in the family Chrysomelidae.  Though we could not find a match on the Brisbane Insect Website, it looks like it might be in the genus
Chrysophtharta, so it would be classified as a Tortoise Beetle in the subfamily Chrysomelinae.

Tortoise Beetle

2 thoughts on “Tortoise Beetle from Australia”

  1. Hello beetle sleuths.

    This beetle is from the genus Paropsisterna, probably P. gloriosa.
    The taxon Chrysophtharta was recently synonymized into genus Paropsisterna (Reid 2006) adding 55 species to the now 122. Chrysophtharta is an unofficial subgenus, including those that fade after death.
    I am reluctant to determine your beetle because it is seems rather blurred.
    It looks close to Paropsisterna gloriosa which normally has brighter and more distinctly bounded colors. https://sites.google.com/site/paropsisternapages/paropsis-sp
    A very closely related beetle Paropsisterna annularis is observed to occur in a ‘faded’ form which might be an aberration or a teneral or overwintering form, I do not know but suspect the former. I have seen examples of P. gloriosa that also occur as pale form and I suspect your photo is more accurate and less blurry than it seems. Compare the pale and normal forms here https://sites.google.com/site/paropsisternapages/paropsisterna-annularis
    This is a very tricky group and I have derived these ID ‘s from Blackburn’s 1899 descriptions.

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