In this post I showed a species of Trichophora determined by Monty Wood. During a visit to the BMNH I discovered that there were no similar Trichophora spp. in their collection but in the same drawer I found Diaphanomyia aurifacies, which seems a very good fit … and this is obviously closely related to Trichophora.
I have just heard back from Monty who has confirmed that he considers Diaphanomyia to be a Townsend synonym of Trichophora so I have adjusted my posts accordingly.
* specimen photos used courtesy of the BMNH curators