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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Calyptratae » Oestroidea » Polleniidae » Cluster flies (Pollenia) » Pollenia vagabunda
Photo#1217584
cluster fly - Pollenia vagabunda - female
Copyright © 2016 ophis

cluster fly - Pollenia vagabunda - Female
Milton, Norfolk County, Massachusetts, USA
April 20, 2016
Size: 9.8 mm
Back porch midday. Larger image.

Images of this individual: tag all
cluster fly - Pollenia vagabunda - female cluster fly - Pollenia vagabunda - female cluster fly - Pollenia vagabunda - female cluster fly - Pollenia vagabunda - female cluster fly - Pollenia vagabunda - female
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Contributed by ophis on 1 May, 2016 - 9:26am
Last updated 30 September, 2019 - 9:43am

Moved
Moved from Pollenia labialis.
… ophis, 30 September, 2019 - 9:43am login or register to post comments

Pollenia vagabunda?
I think I see anterior postpronotal setae as well as two anterior intra-alar. Kind of stripy on top too.
… Brad Barnd, 1 May, 2016 - 5:32pm login or register to post comments

 
re: vagabunda
According to Jewiss-Gaines, Marshall, and Whitworth (2012), labialis is the only North American Pollenia with dark brown to black wing basicosta. Other sp. have light tan or brown basicosta.
… ophis, 2 May, 2016 - 8:37am login or register to post comments

 
Color is a fickle thing
The paper says "the basicosta is frequently dark-brown to black rather than the usual light-tan or brown coloration observed in other species". In identifying Pollenia specimens, I've relied more on the color of the posterior spiricular flaps to ID labialis rather than the basicosta.

If you look at the description for vagabunda, they say no other species of Pollenia have the setae we see in your photos.

Very nice photos btw!
… Brad Barnd, 3 May, 2016 - 12:34am login or register to post comments

 
re: color
Brad: thanks to add'l prodding from johnes81 and John F. Carr, I think these images are at last going where they belong.
… ophis, 30 September, 2019 - 9:46am login or register to post comments

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