Hi Goosey,
Quote:
Originally Posted by goosey
Not that I would actually know what an adult Scymnini or a montrouzieri would even look like! 
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They're very small, usally dark/blackish and a tad hairy ladybirds that don't look much like "ladybirds" at all
You'll find some
C. montrouzieri here.
Quote:
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I thought the hoverfly larva in image 3 was actually doing "something" as there was movement inside the split casing - it was just a guess at pupating. So I take it then, that if it is a larva that it must be a different type of hoverfly than in image 4?
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Yes they're different types, but I myself can't tell which.
About the pupating: The movement inside may just have been "digestion", or alternatively "parasitoids" - just guessing though?!? The best I can do without much searching was this one:

The top left bit shows a larva as found (busy being a larva) and next a few days later, not too long before pupating - it attaches/glues itself to the substrate, straightens out, becomes
shorter (shrivels up a bit), less transparant, then 'blows up' into the shape of the fresh pupa top right.
I'm not sure about the colour of the 'older' pupa bottom left, might well be off-colour because of the parasitoid.
Cheers!
Arp