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Tag Archives: parasitised aphids

Black mummies

19 Thursday Oct 2023

Posted by sconzani in insects

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Tags

Aphelinus species, aphid, aphid mummies, aphid parasitised by wasp, British aphids, Drepanosiphum platanoidis, parasitic wasp, parasitised aphids

Unless I find something particularly noteworthy, this might be my last venture into the confusing world of aphids and their parasites, at least for the winter months. You might remember my post about Aphid mummies on 26 September. Well, the tiny creature pictured below is also an aphid mummy and, thanks to my local expert, I can identify this as a nymph of the aphid Drepanosiphum platanoidis that has been parasitised by one of the Aphelinus species of parasitic wasps. Within its now-blackened body, a wasp larva has been eating its host, will pupate and eventually emerge as an adult wasp. (Perhaps I should have saved this post until 31 October as it has something of the Halloween / zombie / walking dead feel to it.)

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A confusion of pie crusts

10 Tuesday Oct 2023

Posted by sconzani in insects

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Tags

aphids parasitised by wasps, Drepanosiphum platanoidis, Drepanosiphum platanoidis parasitised by Dyscritulus planiceps, Dyscritulus planiceps, parasitic wasp, parasitised aphids, Praon flavinode, Tuberculatus parasitised by Praon flavinode, Tuberculatus species

You can tell I’m no baker – I got my pie crusts confused, what should’ve been puff pastry was really a pizza base. And now you’re confused … let me explain.

Back on 19 September, I wrote about A parasitised aphid, and said that ‘The Praon genus of parasitic wasps are the only ones that create this disc-shaped attachment beneath their host’. That was wrong (and I’ve now edited that post). The Praon wasps are actually responsible for an attachment beneath their host that looks more like puff pastry. Here are examples of the two types of pie crust.

231010 Drepanosiphum platanoidis parasitised by Dyscritulus planiceps and live

First, the pizza base. The first photo above shows the aphid Drepanosiphum platanoidis, which has been parasitised by the wasp Dyscritulus planiceps. The second photo, just for comparison, shows the same species of aphid when alive.

231010 Tuberculatus parasitised by Praon flavinode

Second, the puff pastry. And these two are both Tuberculatus species of aphids that have been parasitised by Praon wasps, most likely Praon flavinode (the local expert I’ve now made contact with tells me ‘There are quite a few species of Praon/Praini but flavinode will almost certainly be the species involved with Tuberculatus on oak’). What was that I said about ‘standing at the top of a very slippery slope, at the bottom of which is a chasm filled with aphids and their parasites!’ (Aphid mummies, 26 September)? Always learning!

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Aphid mummies

26 Tuesday Sep 2023

Posted by sconzani in insects

≈ 4 Comments

Tags

aphid mummy, aphids, British aphids, parasitised aphids

I feel as if I’m standing at the top of a very slippery slope, at the bottom of which is a chasm filled with aphids and their parasites! I say this because I’m finding that these are creatures that have been little studied, are very tricky to identify, and thus could easily become a bottomless pit of specimens I’m frustratingly unable to put a name to. (I already have two jars on my windowsill with parasitised aphids inside, waiting to see what emerges.) I really really should back away from the edge of that slippery slope right now but, before I do, here are some photos I’ve already taken, of what are known as ‘aphid mummies’. The aphids have had eggs laid in them by parasitic wasps, whose larvae have slowly eaten their host while it was still alive, then pupated and emerged as adult wasps – you can see the tiny holes where they’ve left their mummies.

230926 aphid mummies

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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