Key to Males of Gondwanoscurus

1. Apices of retinacula bifurcate (Figs. 5, 13) ................................................................................................................. 2

- Apices of retinacula simple (Figs. 9, 17, 25) ............................................................................................................... 3

2(1).Gonostyli bifurcate, with rami of subequal length (Fig. 11); cercopodia about twelve times longer than wide (Fig. 13); antennal flagellomeres only slightly asymmetrical (Fig. 10) ................................................. G. ejundicus (Quate)

- Gonostyli with apical 1/3 constricted, sinuous, not bifurcate (Fig. 5); cercopodia about nine times longer than wide (Fig. 5); antennal flagellomeres clearly asymmetrical, with nodes exserted laterally, ascoids two, three or four- branched ........................................................................................................................................ G. cruciferus sp. nov.

3(1).Gonostyli with apical 1/3 tapered, not bifurcate (Figs. 5, 9) ....................................................................................... 4

- Gonostyli bifurcate, with medial rami of varying shape (Figs. 16, 20, 23).................................................................. 5

4(3).Gonostyli with apical 1/3 constricted, digitiform, sinuous .......................................................... G. malaysiensis Jezek

- Gonostyli with apical 1/3 acuminate, with setose lobe arising dorsomedially (Fig. 9) ........... G. ornithostylus sp. nov.

5(3).Medial rami of gonostyli arising at about mid-length on medial surface of gonostylus, more than ten times longer than wide, with apices digitiform (Figs. 16, 23) ........................................................................................................... 6

- Medial rami of gonostyli arising at base of gonostylus directed medially, not more than five times longer than wide, with apices acuminate, not digitiform (Fig. 20) ............................................................................... G. mcclurei (Quate)

6(5).Medial rami of gonostyli sinuous (Fig. 16); antennal flagellomeres 1– 3 each bearing three lateral spines (Fig. 14) .. .......................................................................................................................................................... G. eximius (Quate)

- Medial rami of gonostyli arcuate, not sinuous (Fig. 23); antennal flagellomeres 1– 2 each bearing three lateral spines, flagellomere 3 bearing four lateral spines (Fig. 22) ......................................................... G. praecipuus (Quate)