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 Luscilia but which species??
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| Kees Boele |
Posted on 19-03-2020 16:50
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Member Location: Posts: 157 Joined: 27.04.14 |
Is there an option to identify this Luscina? Thanks, |
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| johnes81 |
Posted on 19-03-2020 19:15
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 Member Location: Posts: 1978 Joined: 15.10.16 |
Hello Kees, I am sorry but the single dorsal photo is not helpful. I am not comfortable with a forced answer. Sorry. Lucilia sp. Best wishes, John John and Nini. Naturalists not experts. |
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| Sundew |
Posted on 19-03-2020 19:31
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 Member Location: Posts: 3890 Joined: 28.07.07 |
The basicosta is creamy-white, and I think there are 3 postsutural acrostichal bristles (even if one is masked by the bright spot of light reflection). The mid tibia seems to bear a single anterodorsal bristle. The eyes of this male are separated by a rather wide gap. All these characters would point to the common Lucilia sericata. I wished we could see them more clearly! Regards, Sundew |
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| johnes81 |
Posted on 19-03-2020 19:54
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Member Location: Posts: 1978 Joined: 15.10.16 |
if we ignore the many freak specimens that are commonly found in Calliphoridae, then sericata is a good guess based solely upon the width of the frontal vitta (2 times orbital plate. Rognes 1991). I don't like conjecture. Orion-berlin has several questionable identifications based upon this approach.  Best wishes, John John and Nini. Naturalists not experts. |
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| Sundew |
Posted on 19-03-2020 20:21
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Member Location: Posts: 3890 Joined: 28.07.07 |
Well, with a white basicosta (visible here) we have to discriminate only between L. sericata and L. richardsi (https://quelestce...132016.pdf), and here the width of the gap between the eyes is helpful. - As to the Orion website (https://www.orion...en&sp=), uncertain cases are given the addition "Artbestimmung unsicher" for a good reason  |
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| johnes81 |
Posted on 19-03-2020 21:09
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Member Location: Posts: 1978 Joined: 15.10.16 |
The basicosta is pale yellow. I have no time to entertain conjecture because i have examined the genitalia of a sericata with a frons only 1.2 times the width of an orbital plate (richardsii by conjecture). Lucilia guesswork should carry a cf with it. If you want it to be L. sericata, then you can call it that. I leave it as Lucilia sp.
John and Nini. Naturalists not experts. |
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| Kees Boele |
Posted on 20-03-2020 09:23
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Member Location: Posts: 157 Joined: 27.04.14 |
Thanks John and Sundew for this excellent and helpfull discussion. |
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