---

Impressive. Does not seem to fit the description of bovinus in Chvala et al. The Horse Flies of Europe.
Key characters:
lower frontal callus [1] broadest at base ... [2] vs. [3] broadest at middle ..tinctus
[2] median abdominal triangles not reaching foregoing tergites sudeticus
- triangle usually reaching foregoing tergites . .bovinus

Note: bovinus - antennae black, basal 2 segments and sometimes segment 3 brownish at base;
sudeticus - antennae segment 3 reddish-brown on basal part including dorsal tooth, apically blackish brown, antennal flagellar segments black.