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Leucozona glauca 0850

Observed: 13th August 2007 By: Wildlife Ranger
Freshwater Environment & Ecology Trust
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Description:
Identifications
Species interactions

No interactions present.

Comments

Mark at Magdalen's picture

Nice fly

Nice fly

Wildlife Ranger's picture

Leucozona

Thanks Mark yes common in Autumn never not found it on an Angelica Plant - The purple blue likely that of the Plant Pollen - angelica being that colour often visible it through the digestive tract via the tergite colour. (Apologies on the spelling)

Best Wishes

WLR

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grant burleigh's picture

Leucozona

Is it a female? Is this a species in which the eyes are more closely apposed in the male?

Wildlife Ranger's picture

Hover Sexing

Hi Grant _ generally there is greater spacing in the female - males lack the frons space and have eyes which are closer together
s
http://www.microscopy-uk.org.uk/mag/artmay07/cd-hoverflies.html

Check ot the diagram on the link i put a selection in the article some years ago to give a feel for hovers

The specimen in this image is a bit awkward due to the perspective but looks to be a female

Best wishes

WLR

Whats Happening with Nature ??? Visit the Nature Blog

http://florafaunauk.blogspot.co.uk/

www.ukwildlife.net

Supporting FEET Conservation work & Biodiversity Recording

http://www.ebid.net/uk/stores/medic1/Natural-History

ophrys's picture

Female

Definitely a female, as the eyes meet in males. This species has declined significantly over the last 30 years, according to the 2011 Hoverfly Atlas. I don't see it very much at all in the Vale of York, as it is more of a northerly and westerly species in the UK. A striking species, certainly.

Ian
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grant burleigh's picture

Leucozona glaucia

I did observe this species (on Hogweed) in our site on a few occasions in Aug. 2008, my suspicion at the time being that it had flown in from elsewhere. Your interesting comment on the blue colour being due to pollen from Angelica seems to confirm that since my recollection is that we haven’t had Angelica among our Umbellifers - I’ll try and check out my memory when occasion permits.