---

Leucophora?
If so, where might one find a key to take it further?

On v old sedimentary stone wall near town centre in west of England last week.
V distinctive in the field as it seemed so pale.

---

2

---

3

---

Or Eustalomyia

---

Oh right, interesting... didn't realise the markings could be so faint.
Many thanks John.

According to this post should be either festiva or histrio then...
- https://www.diptera.info/forum/viewthread.php?thread_id=23232

Will see if I can photograph the av-setae to resolve.

---

Copying in Michael Ackland's post

------------------------------------------------
"EUSTALOMYIA
Males and females
1 Legs and palpus partly yellow vittipes (Zetterstedt)
– Legs and palpus completely black 2
2 Arista long haired, the length of the hairs on upper and lower side are each equal to width of postpedicel. Median vitta of scutum widened behind into a rounded spot
hilaris (Fallén)
– Arista short haired or pubescent. Median vitta of scutum equally wide throughout 3
3 The length of hairing on arista in total equal to width of postpedicel. Hind tibia with 7 av-setae festiva (Zetterstedt)
– Hairing of arista significantly shorter, the arista is only pubescent. Hind tibia with 12 av-setae histrio (Zetterstedt)"
------------------------------------------------

If Eustalomyia then this seems to be E.festiva?