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Is there an option to identify this Luscina? Thanks,

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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

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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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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

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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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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.

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Thanks John and Sundew for this excellent and helpfull discussion.