Diptera.info :: Identification queries :: Diptera (adults)
 Pollenia male genitalia--> Pollenia rudis (♂)
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| rafael_carbonell |
Posted on 25-12-2020 04:33
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 Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
This genitalia was dissected from a Pollenia collected specimen (Spain: Girona: 25.viii.2012) in a liquid trap and it was in bad condition. It looked as Pollenia angustigena (Rugnes 1991b ) spite hasn't an outer posthumeral setae. I looked the rudis species group keys (Rugnes 1987b ) and tried to match it with P.luteovillosa, a similar species without outer ph. I have no experience dissecting brachycera genitalia and Pollenia species genitalia look very similar to me. rafael_carbonell attached the following image:  [258.9Kb] Edited by rafael_carbonell on 03-12-2024 10:38 |
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| rafael_carbonell |
Posted on 25-12-2020 04:33
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Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
Pictures 1 and 2 embedded in DMH glue (unfortunately there are shadows when stacking)
rafael_carbonell attached the following image:  [225.09Kb] Edited by rafael_carbonell on 25-12-2020 11:50 |
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| rafael_carbonell |
Posted on 25-12-2020 04:34
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Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
The third picture with the distiphallus in water. Nomenclature as in Rognes 1987b.
rafael_carbonell attached the following image:  [215.68Kb] Edited by rafael_carbonell on 25-12-2020 11:12 |
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| rafael_carbonell |
Posted on 25-12-2020 04:35
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Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
So which species could be? |
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| rafael_carbonell |
Posted on 01-12-2024 22:11
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Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
@eklans, can you tell a species? |
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| eklans |
Posted on 02-12-2024 15:14
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Member Location: Franconia, Germany Posts: 4551 Joined: 11.11.18 |
Hello Rafael, I've checked with Sivell, 2021, and Rognes, 1991: I think, rudis species-group is correct and it's Rognes' type I = angustigena or rudis. The difference between both is the central sclerotisation in hypophallus which is usually broader than clear surface in distal part in angustigena and narrower in rudis. Your fly's one is the narrower = rudis? See the space between the arrows in the attached image. eklans attached the following image:  [102.67Kb] Greetings, Eric |
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| rafael_carbonell |
Posted on 03-12-2024 10:36
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Member Location: Beuda, Girona, Catalonia Posts: 691 Joined: 23.03.06 |
Great! I didn't know that difference in the width of the central sclerotisation on hypophallus, perhaps is in Sivell 2021. Thanks! |
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