Diptera.info :: Identification queries :: Diptera (adults)
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 Canacidae: Pseudorhicnoessa rattii (Mauritius)
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| ESant |
Posted on 26-06-2024 12:43
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Member Location: L'Aquila, Italy Posts: 2079 Joined: 20.09.20 |
Hello, I found several of these flies on the seashore in Balaclava, Mauritius, on April 21st 2024. In this case I'm not even sure of the family they may belong to. Is it possible to identify them? Thank you in advance, Emanuele ESant attached the following image:  [300.54Kb] Edited by ESant on 27-06-2024 20:54 |
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| ESant |
Posted on 26-06-2024 12:44
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Member Location: L'Aquila, Italy Posts: 2079 Joined: 20.09.20 |
Photo 2:
ESant attached the following image:  [274.2Kb] |
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| ESant |
Posted on 26-06-2024 12:44
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Member Location: L'Aquila, Italy Posts: 2079 Joined: 20.09.20 |
Photo 3:
ESant attached the following image:  [300.31Kb] |
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| Nikita Vikhrev |
Posted on 26-06-2024 23:37
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 Member Location: Moscow, Russia Posts: 9329 Joined: 24.05.05 |
I think it is Tethina
Nikita Vikhrev - Zool Museum of Moscow University |
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| ESant |
Posted on 27-06-2024 11:45
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Member Location: L'Aquila, Italy Posts: 2079 Joined: 20.09.20 |
Thank you! It does indeed look similar. |
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| John Carr |
Posted on 27-06-2024 15:38
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 Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Based on the 2010 world catalog of Canacidae by Munari and Mathis (https://doi.org/1...a.2471.1.1) this should be Pseudorhicnoessa rattii. That is the only species of Tethininae recorded from Mauritius. The setulose scutellum and bristled mid tibia point to Pseudorhicnoessa instead of Tethina. That species was described in Munari, L. (1981b) Sul genere Pseudorhicnoessa Malloch, 1914 (Diptera Tethinidae). Società Veneziana di Scienze Naturali - Lavori, 6, 91–96. There is a newer paper I have not seen: Munari, Lorenzo. 2014. New Indo-Pacific species of Dasyrhicnoessa Hendel, 1934 and Pseudorhicnoessa Malloch, 1914 (Diptera: Canacidae: Tethininae). Zootaxa 3784(3) https://www.biota...a.3784.3.8 |
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| ESant |
Posted on 27-06-2024 20:53
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Member Location: L'Aquila, Italy Posts: 2079 Joined: 20.09.20 |
Thank you very much John! Aside from P. rattii, other Tethininae are reported from Mauritius in Munari et al. (2020) "The beach flies of the Mascarene Islands (Diptera: Canacidae: Tethininae)". Anyway, given the features you pointed out I agree with your identification. |
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