Wildlife Ranger's picture

Eyes 0564xx

Observed: 5th August 2011 By: Wildlife Ranger
Freshwater Environment & Ecology Trust
Wildlife Ranger is knowledgeable about InvertebratesWildlife Ranger’s earned reputation in InvertebratesWildlife Ranger’s earned reputation in InvertebratesWildlife Ranger’s earned reputation in InvertebratesWildlife Ranger’s earned reputation in InvertebratesWildlife Ranger’s earned reputation in Invertebrates
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Eyes 0564xx
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Description:

A Syrphus sequence

Identifications
Species interactions

No interactions present.

Comments

ophrys's picture

Syrphus

Female with extensively dark femora points to torvus or vitripennis. Nice set of pictures, but still can't make out presence of eye hairs to confirm one or the other.

Ian
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ophrys's picture

vitripennis

I am surprised to see an expert plumping for vitripennis just because it is commoner! It's not necessarily more likely to be that species at all, is it? I see plenty of torvus, when I actually collect Syrphus for checking.

Ian
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http://www.flickr.com/photos/52163027@N02/

Wildlife Ranger's picture

Syrphids

Thanks Guys - As always the Syrphids cab be a perplexing call Maybe Syrphus sp is safest

I have added some eyes and cant see any banding Trims 1:1 18 MB Macro circa 300 - 500 kb a little bit soft and better done with a 60 mm as opposed to 100 mm macro

Best Wishes & thanks

WLR

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ophrys's picture

Hairs

The hairs of torvus would not be in bands, and they can be very sparsely scattered across the eye. I still do not think that you can make a definite judgement, unfortunately, so it stays as Syrphus, for me! You have to view the eye against different colour backgrounds to be certain of presence/absence.

Ian
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http://www.flickr.com/photos/52163027@N02/