Subgenus Cyphobrachyiulus Diaxylus Attems, 1940
Updated diagnosis.
A subgenus of the genus Cyphobrachyiulus differing from other subgenera by the following combination of characters: opisthomere possessing an apicoposterior process and lacking a lateral process, or the latter represented by a weakly developed lobe; promere ending in a broad margin, rather than in a distinct apex, protruding in a conspicuous mesal tip; vulval operculum subequal to bursa; male coxae 2 not enlarged.