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Diptera.info :: Identification queries :: Diptera (adults)
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Muscidae: Stomoxys ID (Mauritius)
ESant
#1 Print Post
Posted on 26-06-2024 11:46
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Location: L'Aquila, Italy
Posts: 2190
Joined: 20.09.20

Hello,

I photographed this fly in Pamplemousses, Mauritius, on April 20th 2024. I think it is a Stomoxys, but is it possible to identify its genus or species from these photos? If I'm not mistaken, 3 species are reported for the Mascarenes, but I wasn't able to find much information on how to tell them apart.

Thank you in advance,
Emanuele
ESant attached the following image:


[296.85Kb]
Edited by ESant on 27-06-2024 19:56
 
ESant
#2 Print Post
Posted on 26-06-2024 11:47
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Location: L'Aquila, Italy
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Photo 2:
ESant attached the following image:


[291.75Kb]
 
Nikita Vikhrev
#3 Print Post
Posted on 26-06-2024 22:35
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Location: Moscow, Russia
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Only S. calcitrans is known from Mauritius
Nikita Vikhrev - Zool Museum of Moscow University
 
John Carr
#4 Print Post
Posted on 27-06-2024 14:30
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According to the abstract of this paper Stomoxys nigra is the more common species: https://www.cambr...9CD6441BCC
 
http://www.flickr.com/photos/31715949@N00
John Carr
#5 Print Post
Posted on 15-07-2024 21:20
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The pattern on the abdomen does not match either Stomoxys calcitrans or S. niger. From the key to the Muscidae of Madagascar (Couri et al. 2006):

Frons slightly widening from the vertex towards the lunula; abdomen with dark spots; width of male frons at its narrowest part about ⅓ or more of eye-length; width of female frons at vertex about one-half of eye-length .... S. calcitrans
Frons sub-parallel in posterior half; abdoment with dark transverse bands; width of male frons at narrowest point about ¼ or less of eye-length; width of female frons less than one-half of eye-length ... S. niger

https://researcha...57_n29.pdf

Figures of abdomens of both species are on the last page.
 
http://www.flickr.com/photos/31715949@N00
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