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This fly I caught in a greenhouse in the Netherlands, at Avifauna in Alphen aan de Rijn last Tuesday, and I guess it is an imported species of Chrysopilus? Any ideas, as I don't know the origin of the fly.

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Lateral view

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Third picture

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Antenna

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Very interesting indeed !!
Antenna suggests male Ch. nubecula, however, I have never seen such a wing pattern in Chrysopilus.
Love to see the genitalia.

What kind of crops in the greenhouse ?

Theo

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It was in the part of Avifauna (a bird park), that is called the Lori Landing. There are lots of Swainson’s Lorikeets there, they are from Australia. More important, I do not know where the plants in the greenhouse are from. It looks like a tropical garden to me. However, I found a similar picture of the male of Chrysopilus laetus on the internet, could this be an option? In this seems a good fit as in this species the wing tip is also darkened. This species is recorded for the UK I see.

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Hi Niels-Jan,

I will send you an email.

It would be useful if you could make a frontal pic of the head, showing the clypeus (the balloony thing in the middle of the face).

And we need to study the genitalia.

Theo

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Here a picture of the clypeus.

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And one of the genitalia

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Clypeus excludes nubecula, that is pretty clear !


Theo

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Wing clearly is pullus, but genitalia clearly is not.

Theo

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Wing pattern does not match any North American species in the key by Hardy (1949).

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There are several species of Neotropical Chrysopilus which seem very similar: https://www.resea...ew_Species

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Interesting, thanks !

Theo