In Norway we have 4 species of Polytribax.
I have written how to exclude the 3 other Nordic species of male Polytribax in Norwegian in Artsobservasjoner.no.
You can exclude two of them from this picture only:https://www.artsobservasjoner.no/Image/730453
You can also check pictures of males on boldsystems:http://www.boldsystems.org/index.php/Ta ... xid=502844
Polytribax perspicillator has red gaster, with black petiolus. It has hind legs with even tarsus 5 white (except the claws). In addition it has more extensive white drawings on the face. (boldsystems: http://www.boldsystems.org/index.php/Ta ... xid=746467
Take a look at this one (Det. M. Schwarz).http://faunearthropode.fr/polytribaxperspicillator.html
Polytribax rufipes has red hind femora and hind tarsus without white.
Polytribax picticornis has antennae with white ring.
Two other southern species in Europe (senex and pelinocheirus) have not been considered. They are known as far north as Germany.
You can find the Nordic species described here, with latin text:
Thomson, C.G. 1883. XXXI. Forsok till gruppering och beskrifning af Crypti (fortsattning). Opuscula Entomologica. Lund. IX:850-872.
Polytribax arrogans: Niger abdomine rufo, basi apiceque nigro: mas tarsis posticis ante apicem albis. Ej sallsynt, men honan förekommer sparsamt.
Poplytribax perspicillator: Niger, abdomine basi excepta rufo, pedibus posticis nigris, genubus testaceis, orbita frontali maris interiore et ore albidis.
(it is a great advantage to have had language as one of my greates hobbies since I was 20, but google translate does incredible work for me to)
I guess there are work to be done with Polytribax as there are no new revisions, but my male matches the description of arrogans in all details.
It would be great if Martin Schwarz could share some comments here.