I have been trying to record Telmatoscopus tristis (Meigen, 1830) but it does not appear to be present on iRecord. It is a valid species on NBN. The number of species in Telmatoscopus on iRecord is very low compared to those known in the UK. Perhaps it is placed in another genus? However sorting through tristis I could not find a Dipteran genus that appeared in Psychodidae known to me.
It seems that Telmatoscopus tristis is currently listed on iRecord as Psychoda tristis, which is given as a synonym on NBN and elsewhere (e.g. GBIF).