The key to the males of the Neotropical Deinodryinus published by Olmi & Virla (2014) divides the species into two groups (see first couplet of the key to males), as follows:

1 Males with antennal setae shorter than breadth of antennomeres (Fig. 1C)............................. 2 (first group)

– Males with antennal setae as long as, or much longer than breadth of antennomeres (Fig. 1E)........... 10 (second group)

D. hubeni sp. nov. belongs to the first group, together with the following nine Neotropical species: D. albopictus Olmi, 1984; D. carpens Olmi, 1984; D. hansoni Olmi, 1991; D. irwini Olmi, 1991; D. nigrorufus Olmi, 1984; D. perlucens Olmi, 1984; D. pseudobilobus Olmi, 1984; D. sculptus Olmi, 1995; D. vagans Olmi, 1984 . Because of the face sculptured by longitudinal keels (Fig. 1C) and the paramere with a large inner branch wrapping the penis (Fig. 2B), the new species is similar to D. albopictus, D. carpens, D. perlucens, D. pseudobilobus and D. sculptus (Figs 2A, C–F). However, in D. hubeni the inner branch of the paramere is long, narrow and situated in proximal position (Fig. 2B), whereas in the other species it is short, broad and situated in distal or subdistal position (Figs 2A, C–F).