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Larvae ID

 
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Sandy



Joined: 22 Jul 2008
Posts: 135
Location: East Lothian

PostPosted: Sat Oct 10, 2009 4:23 pm    Post subject: Larvae ID Reply with quote

Hi all

Anyone care to have a go at identifying these two syrphid larvae I found today?
The first was quite large and resting on the upperside of a sycamore leaf.
The second was attending to an aphid colony on the underside of a reed leaf.

Sandy
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John O'Sullivan



Joined: 05 Oct 2005
Posts: 128
Location: Sandy, Bedfordshire, UK

PostPosted: Tue Oct 20, 2009 10:38 pm    Post subject: Reply with quote

Thanks Sandy, and I'm glad to say that, having recently lent a friend my copy of Rotheray's (1993) Colour Guide to Hoverfly Larvae, I am off the hook!
Does anybody with a copy handy feel like checking the illustrations of aphid-eating species?
It's probably fair to say that, while many contributors to this Forum could confidently identify from photographs adult hoverflies of a dozen or more species, there are rather few who could do the same with larvae.
John
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Sandy



Joined: 22 Jul 2008
Posts: 135
Location: East Lothian

PostPosted: Thu Oct 22, 2009 7:57 am    Post subject: Reply with quote

Yes hoverflies adults have a particular appeal not shared by their offspring I fear.
I found these larvae while visiting a 10km square which had little or no records to date. Unfortunately the timing was a little late in the year and the only flies I recorded were 4 Episyrphus. I photographed the larvae suspecting that they may be identifiable and therefore proof of a species presence in the location.

Sandy
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