Sighting

Leonie Kirchmajer 28 Feb 2019

Identifications

  • Leonie Kirchmajer 28 February 2019
    Braconidae
    (family)
    Taxonomy: Animalia: Arthropoda: Insecta: Hymenoptera: Braconidae
    Leonie Kirchmajer says

    I could ID this wasp to Braconidae and the Amateur Entomology Australia FB group helped get the ID to possibly Microgastrinae. Being so tiny, it is difficult to get good close up pictures. I’ve done my best with my iPad and clip on magnifying lens. I have specimens in the freezer if anyone can help with a more specific ID.

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  • Leonie Kirchmajer 7 March 2019
    Sathon moratus
    (species)
    Taxonomy: Animalia: Arthropoda: Insecta: Hymenoptera: Braconidae: Sathon: moratus
    Common Names: Parasitic wasp, Braconid wasps
    Leonie Kirchmajer says

    Identified as Sathon moratus by Erinn Fagan-Jeffries at University of Adelaide after examining the specimens collected.

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Notes

  • Leonie Kirchmajer 4 March 2019
    Tagged With update
    Leonie Kirchmajer says

    Thanks Rose Robin. The wasps I collected are being sent to Erin Fagan-Jeffries (of The Caterpillar Conundrum) at University of Adelaide and hopefully she will be able to identify them further. So watch this space :)

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  • Leonie Kirchmajer 28 February 2019
    Leonie Kirchmajer says

    I found 70+ of these small (3.5mm) wasps inside one of my case moth enclosures one evening. They were definitely not there that morning. After isolating each of the case moths and the foliage, the next morning there were more wasps in the container that had one of the Hyalarcta nigrescens (Smooth ribbed case moth) that I had thought was pupating based on the lack of activity, case size and appearance. After checking the two other Hyalarcta nigrescens I discovered one had a tiny pin prick exit hole. Opening it up revealed a dead caterpillar and a large mass of wasp pupae (I counted 100), some which still had pupating larvae inside. I also opened the other case and it also had a dead caterpillar and large mass of wasp pupae. I have not come across these wasps as parasitoids of my case moths before. I’d like to find out more about how and when these wasps likely parasitised these specimens. The enclosure they were in contained the 3 Hyalarcta nigrescens as well as 5 Clania sp. (2 adult females, 1 pupating(?), 2 active caterpillars). So far the wasps have only parasitised the Hyalarcta nigrescens. The enclosure is a pop up style with fine nylon mesh, too fine for the wasps to get in or out. The enclosure is usually kept outside. However, on 1/1/19 I had an adult male Hyalarcta nigrescens eclose and opened the enclosure so that he could fly out. The enclosure was left open outside for several hours so the wasps could have entered then. I suspected the 3 remaining H. Nigrescens were pupating late Jan/early Feb and the first wasps emerged 22/2/19.

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  • Rose Robin 28 February 2019
    Tagged With thank you
    Rose Robin says

    Leonie, your detailed information is fascinating, and has solved a little puzzle for me; a larvae someone gave me, from a white cocoon. After reading your entry, I realise mine is probably some sort of wasp larvae, so will refer to you when I post mine.

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