Attractive sawfly

Attractive sawfly

Observation - Attractive sawfly - UK and Ireland. Description: Can anyone suggest an ID for this male sawfly. I think it is Cephidae, probably a Hartigia sp. In the UK we have H.linearis H.nigra and H. xanthostoma. Is it possible to say which one this may be? I have several other angles of view if needed.

Can anyone suggest an ID for this male sawfly. I think it is Cephidae, probably a Hartigia sp. In the UK we have H.linearis H.nigra and H. xanthostoma. Is it possible to say which one this may be? I have several other angles of view if needed.