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#1 2017-08-15 09:55:53

IanCarle
DF Members
Name: Ian Carle
From: Herts
Registered: 2016-07-28
Posts: 70

Rhingia rostrata?, Sphaerophoria taeniata?, Loxocera aristata?

Hello folks, I took these photos 13/08/2017 at Frogmore Meadows SSSI TQ020989 a wet grassland site with plenty of rushes. I'd be grateful if someone could confirm/correct my non expert ids.

Thanks

Ian

1. Sphaerophoria taeniata? - bright yellow and yellow bands seem to be undivided
2. Rhingia rostrata? - can't see black marks on on lateral margins of abdomen
3. Loxocera aristata? - even more of a guess as my book only illustrates two rust flies, but the habitat is right


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Last edited by IanCarle (2017-08-15 09:58:00)

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#2 2017-08-15 10:57:53

andrewsi25
DF Members
Name: Ian Andrews
From: Pocklington, East Yorkshire
Registered: 2008-07-11
Posts: 246

Re: Rhingia rostrata?, Sphaerophoria taeniata?, Loxocera aristata?

The Rhingia looks okay. Female Sphaerophoria can't be taken to species, so just Sphaerophoria sp. for that one. The Loxocera could be aristata or albiseta, but I think you need other angles to see the face to differentiate.

Ian

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#3 2017-08-15 21:04:11

Rainieria
Committee
Name: Darwyn Sumner
Registered: 2008-02-20
Posts: 307

Re: Rhingia rostrata?, Sphaerophoria taeniata?, Loxocera aristata?

That's a fair guess at Loxocera aristata for the third picture but the characters required to make any progress in the key, many of them in the lower part of the head, are not visible, so it is only a guess.
Contact me for the key to these.

Last edited by Rainieria (2017-08-15 21:04:53)


Darwyn Sumner
DF Bulletin Editor, Scheme Organiser: Stilt & Stalk Flies

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#4 2017-08-15 23:48:00

IanCarle
DF Members
Name: Ian Carle
From: Herts
Registered: 2016-07-28
Posts: 70

Re: Rhingia rostrata?, Sphaerophoria taeniata?, Loxocera aristata?

Thanks for your help Ian and Darwyn, very useful to know that female Sphaerophoria can't be taken to species and also which bits to try and photograph for the Loxocera.

Ian

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