Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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 Syrphid larva?
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| Susan R Walter |
Posted on 21-10-2006 18:22
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
I suspect this is a syrphid larva, but I don't have Rotherhay, so haven't been able to get much further with the ID. Collected today from an East London Cemetery Park. It was sheltering near the base of a Carex remota Remote Sedge, only a couple of feet from a pond. It measures 10mm at rest and about 13mm when stretched to full racing mode. I would be happy to rear it if someone could give me some advice on what to do (note that my record with hoverfly larva is dismal, so perhaps I had better release it )
Susan R Walter attached the following image:  [106.56Kb] Susan |
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| Paul Beuk |
Posted on 21-10-2006 20:26
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 Super Administrator Location: Netherlands Posts: 19363 Joined: 11.05.04 |
Could be a Platycheirus species?
Paul - - - - Paul Beuk on https://diptera.info |
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| Susan R Walter |
Posted on 23-10-2006 13:26
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Many thanks Paul. There are several species of Platycheirus recorded for the site, so it seems perfectly likely that this larva is the progeny of one of them.
Susan |
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| Robert Nash |
Posted on 23-10-2006 15:03
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Member Location: Ulster Museum, Belfast, Ireland Posts: 288 Joined: 11.11.05 |
Try Graham Rotheray g.rotheray@nms.ac.uk who I am sure would like to see the pic. Robert |
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| Susan R Walter |
Posted on 25-10-2006 13:25
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Robert and Paul - many thanks. Graham also thinks it is Platycheirus sp and has given me some tips for rearing it, so I will let you know what happens in due course.
Susan |
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| Susan R Walter |
Posted on 30-04-2007 14:02
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
I am pleased to report that the syrphid larva I picked up in Tower Hamlets Cemetery Park, east London in October last year pupated in mid-February and hatched on 17 April - but not into a Platycheirus. I have identified it as a male Sphaerophoria scripta and attach photos. I'm afraid it hatched at a thoroughly inconvenient time and I had to pin it in a hurry, so I have not hinged out its genitalia because its wings seemed so clearly shorter than its abdomen. Now that it is pinned I am not so sure though. I have looked at the hairy genital lobes as best I can in their position tucked under the abdomen, and they do seem to be long, as for scripta, but I hope I haven't made a frustrating mistake.
Susan R Walter attached the following image:  [128.46Kb] Edited by Susan R Walter on 30-04-2007 14:03 Susan |
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| Susan R Walter |
Posted on 30-04-2007 14:03
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Dorsal view.
Susan R Walter attached the following image:  [108.26Kb] Susan |
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| caliprobola |
Posted on 11-06-2007 17:05
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Member Location: Belgium Posts: 203 Joined: 24.05.07 |
seems scripta to me |
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| Susan R Walter |
Posted on 06-07-2007 13:19
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
OK - thanks for the reassurance.
Susan |
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