10a. Paranota visible as reduced structures or slight lateral swellings;
                go to 11
 
10b. No trace of paranota, or paranota only visible as fine line;
                go to 18

11a. Paranota shaped as shown (head is to left)
                go to 12
 
11b. Paranota merely slight lateral swellings;
                go to 14

12a. Body light brown with well-defined dark brown ring around each segment (see image at right)
                Akamptogonus novarae
 
12b. Body light brown to black;
                go to 13

13a. Gonopod as shown (head is to right); eastern and northern Tasmania
                Aethalosoma solum

13b. Gonopod as shown (head is to right); eastern and northern Tasmania
                Notodesmus scotius

13c. Gonopod similar to the one shown (head is to right); western and northern Tasmania;
                Somethus spp.

14a. Adults to 12 mm long, pale red in colour; ozopores on segments 5 and 7-18;
                Procophorella spp.
 
14b. Adults at least 15 mm long; variously coloured;
                go to 15

15a. Adults light brown or black, gonopod as shown (head is to right); far northeast Tasmania and eastern Bass Strait only;
                Dicranogonus sp.
 
15b. Adults never black; not in far Northeast;
                go to 16

16a. Adults reddish, ozopores on segments 5 and 7-18, far south only;
                Noteremus summus
 
16b. Adults with normal pore formula;
                go to 17

17a. Gonopod long, with 'fringed hood' tip and long, needle-like solenomere (see image at right; dashed line through solenomere);
                Bromodesmus spp.
 
17b. Gonopod short, curled over like a partly closed hand, solenomere stout, short, inconspicuous;
                Atalopharetra spp.

18a. Paranota reduced to a fine, just-visible line (see image on right)
                Gasterogramma spp.
 
18b. No trace of paranota;
                go to 19

19a. Adults 20-25 mm long, pale with 3 dark longitudinal stripes (see image on right)
                Pogonosternum spp.
 
19b. Adults 10-12 mm long, without longitudinal stripes; ozopores on segments 5 and 7-18;
                Paredrodesmus spp.