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Old Sunday 10th June 2007, 21:58   #101
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Find a male and the length of the abdomen (longer than wings) is diagnostic.
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Old Monday 11th June 2007, 08:58   #102
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Merodon equestris

Someone was asking about Merodon equestris earlier. Got a reasonable sequence of shots of one in the garden yesterday. A very variable insect and this one is very hairy so the bi-coloured thorax is not useful. However there are several ID pointers.

1. Hairy bee mimic
2. All black legs
3. Bare aristae (pointy bits on antennae)
4. Bulge under the hind femur.
5. Looped vein in wing and open cell (R1).

HTH
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Old Sunday 17th June 2007, 15:33   #103
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I saw this one today. I've looked in Stubbs and think it's Chrysotoxum verralli, but reading about C. elegans made me less sure. The habitat seems more appropriate to veralli but there is woodland a matter of yards away so elegans is a possibility.
I could be completely wrong of course!
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Old Sunday 17th June 2007, 20:12   #104
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Following the key I come out with elegans.
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Old Sunday 17th June 2007, 20:46   #105
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Thanks for that. I've only just got Stubbs and I'll try following the key when I've got a minute. I've got a lot to learn.
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Old Thursday 21st June 2007, 21:11   #106
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Chrysotoxum verralli

This was a good looking fella. Feeding on Wild Parsnip along with many other insects.

Keyed to verralli based on structure of antennae, tergite & sternite pattern.
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Old Friday 22nd June 2007, 19:34   #107
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Anyone like to confirm this one for me?
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Old Friday 22nd June 2007, 20:19   #108
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It is, as you have labelled it, Episyrphus balteatus. A migrant which can be extraordinarily common. Although named Marmalade Hoverfly in recent lists of hoverflies my nickname for it is Barcode Hoverfly, as it is the only species with variable width black bars on the abdomen.
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Old Friday 22nd June 2007, 21:07   #109
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Thanks, Mike, It's nice to get a definite species in my garden (as opposed to genus-level IDs.)
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Old Sunday 1st July 2007, 19:11   #110
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Hi all,

I was lucky enough to enjoy watching about seven species of hoverfly in one spot along the Grand Western Canal in Devon a few days ago when the sun came out.

I also got a few photographs of some which I have hopefully correctly identified?

NET Hoverfly 001 : Eupeodes corollae

NET Hoverfly 002 : Episyrphus balteatus

NET Hoverfly 003 : Eupeodes corollae

NET Hoverfly 004 : Eristalis pertinax

NET Hoverfly 006 : Volucella pelucens

Cheers,
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Last edited by Andrew : Monday 2nd July 2007 at 10:47. Reason: Wrongly named one picture. Thanks for pointing that out to me, Ken.
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Old Sunday 1st July 2007, 19:44   #111
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Slip of the pen on 003, Andrew, but I'd be pretty confident of 002 as balteatus. Pity you didn't get to 007 - shaken not stirred
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Old Tuesday 3rd July 2007, 10:01   #112
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Xanthogramma pedisequum

Got another nice shot of Xanthogramma pedisequum this morning. E. balteatus are becoming rather abundant since late last week. Many swarming on brambles and on sticky leaves like prunus spp.
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Old Thursday 5th July 2007, 10:07   #113
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Andrew. I don't think 1 & 3 can be corollae. Might be wrong here but I think both are females and these should have the yellow divided on tergites 3&4, e.g. http://www.syrphidae.de/schwebfliege...w03%20hsk.html. Not sure what they are though; perhaps E. latifasciatus?

Agree with the other IDs although a better shot showing the legs of the pertinax would be reassuring.

Try to get photos head on and from the side, or even underneath as well as dorsally.

Quote:
Originally Posted by Andrew View Post
Hi all,

I was lucky enough to enjoy watching about seven species of hoverfly in one spot along the Grand Western Canal in Devon a few days ago when the sun came out.

I also got a few photographs of some which I have hopefully correctly identified?

NET Hoverfly 001 : Eupeodes corollae

NET Hoverfly 002 : Episyrphus balteatus

NET Hoverfly 003 : Eupeodes corollae

NET Hoverfly 004 : Eristalis pertinax

NET Hoverfly 006 : Volucella pelucens

Cheers,
Andrew.

Last edited by Brian Stone : Thursday 5th July 2007 at 15:32.
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Old Thursday 5th July 2007, 15:19   #114
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Thanks for the advice Brian, I have since Googled Eupeodes latifasciatus and still am none the wiser but can see quite a strong similarity. The link in your post does not seem to work for me even with the bracket removed from the end.

Terms like 'tergites' frighten me! I think I had best stick to just admiring hoverflies as with birds, butterflies, dragonflies and moths, I think I have a very full plate!
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Old Thursday 5th July 2007, 15:34   #115
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Not scary. Link fixed. Check it and you'll see the yellow bands are broken in the middle. You can see it's a female because there's a gap between the eyes. In males they meet along the top of the head like your Eristalis.
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Old Thursday 5th July 2007, 15:40   #116
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Thanks Brian, a good field guide should be a help so I shall re-read this thread again to see what has been recommended so far.
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Old Thursday 5th July 2007, 16:46   #117
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Quote:
Originally Posted by brianhstone View Post
This is an excellent intro to hoverflies:
http://www.gardensafari.net/english/hoverflies.htm
A late thanks for pointing this out. Enjoyed reading that.
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Old Thursday 5th July 2007, 17:19   #118
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This has been slow to dawn but of course these aren't Eupeodes at all. They're Syrphus spp.. Need much better photo including the hind legs to come to an ID.
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Old Tuesday 31st July 2007, 15:35   #119
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Leucozona glaucia

I don't think this one has featured on here yet. Very distinctive with the blueish base to the abdomen, very narrow bands and yellow scutellum. Quite a few evident on umbellifers along Lathkill Dale in Derbyshire along with plenty of other hovers at the weekend. Had X. pedisequum in my garden for the first time too.
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Old Thursday 23rd August 2007, 09:29   #120
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Xylota segnis

Here's another view of Xylota segnis showing the distinct black spines on the underside of the hind femur.
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Old Thursday 23rd August 2007, 09:59   #121
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Quote:
Originally Posted by brianhstone View Post
A fascinating group of insects with some interesting mimics.

Here are three to start off with. Feel free to shoot my IDs down in flames

First two Eristalis tenax (Drone Fly)
Epistrophe eligans
Helophilus pendulus

The following key covers Helophilus sp.:
http://home.hccnet.nl/mp.van.veen/KE.../helo_key.html

The last pic is another Eristalis tenax I think.
Love this thread, and Brian it is such a good idea to start it off.

Love the pictures and, I have got to admit they are beautiful insects to look at. enjoy seeing them in the garden.

Unfortunately I only have a basic book (need to buy so many books at the moment!!). The only 2 pictures I have are of the Drone Fly and the Hover Fly. Of course there are lots that exist.

So I will tread forth to the book shop, and buy what is needed when more organized here

Anyone got a good book to buy in mind here? Appreciate any suggestions? If the book is combined, as a insect book, that will be all right too.

(I have had a good recommendation for a butterfly and Moth book at the moment, so I will add this on to my list!)

Thank you for your help
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Old Thursday 23rd August 2007, 10:39   #122
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This is the best book for the UK:
http://www.nhbs.com/british_hoverflies_tefno_5273.html

There is another good tome covering NW Europe:
http://www.nhbs.com/hoverflies_of_no...no_138679.html

I have both but rarely need anything other than the first.

This forum is also useful:
http://www.hoverfly.org.uk/portal.php
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Old Thursday 23rd August 2007, 10:50   #123
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Hi Brian

What a quick answer here

Thank you for your help!!
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Old Monday 27th August 2007, 19:31   #124
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There was a hoverfly on hemp agrimony in our garden yesterday. It was only about 1cm long and I'm afraid the photo is rubbish. But is there enough there to make an ID?
Ken
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Old Thursday 30th August 2007, 13:32   #125
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Hello all!

Anyone know what this one is? Photoed today in the Australian National Botanical Gardens in Canberra (Australia).

Cheers!

Dimitris
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