Key to described species of Asphalidesmus Silvestri, 1 9 1 0

1 Paranota longer (i.e., parallel to transverse axis of body) than wide (parallel to anterior-posterior axis); ozopore almost midlateral, well separated from base of paranotum; adults with middorsal projections on rings 17 and 18, some adults with paired paramedian dorsal projections on other rings; southern Tasmania only............................................ Asphalidesmus golovatchi sp. n.

– Paranota about as long as wide; ozopore at base of paranotum; no dorsal projections on rings.......................................................................................... 2

2 Paranotum with prominent rounded tab on posterior margin near base; gonopod telopodite with short anterior branch bearing end of prostatic groove, and long posterior branch ending in comb-like structure; southern Tasmania only ............................................................. A. parvus (Chamberlin, 1920)

– Paranotum without prominent posterior tab; telopodite with anterior and posterior branches about equal in length and without comb-like structures, prostatic groove ending on posterior branch; northern Tasmania only .......... .................................................................................. A. leae Silvestri, 1910