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This fly (left) was hovering at the entrance of the nest of a Sphecidae wasp Sceliphron deforme (right). Apparently, it was waiting for an opportunity to gain access into the nest to parasitize the wasp larve/egg. It would be much appreciated if the fly can be identified.

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Thorax

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Abdomen

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Lateral view

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Side (magnified)

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Head

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Wing

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Sarcophagidae subfamily Miltogramminae.

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Thanks John. Title amended.

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I think it is an Amobia.

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Thanks John. Previously in Hong Kong, we have a report that the nest of another Spehcidae wasp (Isodontia diodon) was infested by maggots of Amobia quatei Kuahashi which I have no idea how it looks like.

Do you think my fly here is also Amobia quatei or some other species?

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Beautiful pictures!!

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This is a female and we would need to see male genitalia.

Amobia (i.e. penelopei) is a well known cleptoparasitoid of Sceliphrin ( google it)

Theo