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I thought this looked like Drosophila immigrans, but would appreciate a second opinion.

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It wasn't until I downloaded the photos that I realised I'd captured the act of oviposition. Drosophila eggs, being laid in a liquid substrate, are provided with filaments which clearly help with breathing. The egg can't be seen, but the filament is visible.

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With the faint dark markings at the tips of the longitudinal veins I am confident that it is D. immigrans.

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Thanks, Paul. That's good to know.

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It is very recognisable to me situation, to find interesting things afterwards, regarding photo at home.