Subgenus Propolybothrus Verhoeff, 1907
Besides the type-species, E. nodulosus (Verhoeff, 1905), this subgenus has only E. werneri (Attems, 1902) . The two species are known by their type specimens only, which came from Thessalia (Greece) and Magnesia (= Manisa, Turkey?), respectively. The differences between the two seem rather unimportant and, in fact, may relate to different post-larval stages of the same species .
The subgenus is characterized by the absence of triangular projections on the tergites, and the presence in the 15th leg of a VCm and a VCa spine. The 15th leg has a single claw, and in the male its prefemu; is dorsally sulcate. The male gnnopods are short.