Bicoxidens, Attems, 1928

Mwabvu, Tarombera, Hamer, Michelle & Slotow, Robert, 2009, A new species of Bicoxidens Attems, 1928 (Diplopoda, Spirostreptida, Spirostreptidae) from northern Zimbabwe, ZooKeys 7 (7), pp. 75-81 : 80

Bicoxidens

species in Mwabvu et al. (2007) in order to accommodate aridis . Th is becomes the first couplet because the shape of the distal region of the telocoxite and the structure of the telopodite distinguish aridis from congeners:

1 Apical metaplica hook-shaped and with a median cavity ( Figs. 1a, 1b ), without produced lateral or median processes; post knee telopodite not L-shaped ( Fig. 1a ), with a clockwise coil after the femoral lobes and without looping at the extremity ( Fig. 2 ) .............................................. Bicoxidens aridis sp. n.

– Apical metaplica not hook-shaped and without a median cavity; with produced lateral or median processes; post knee telopodite L-shaped, without a clockwise coil after the femoral lobes and with looping at the extremity........ .................................................................. 2 (all other Bicoxidens species, see key in Mwabvu et al. (2007))

Figures

Figure 1. Bicoxidens aridis sp. n. A, oral view of gonopods; B, aboral view of gonopods; C, lateral view of collum; D, oral view of prefemoral lobe of first pair of male legs. Abbreviations: p, proplica; hsl, heartshaped lobe; m, metaplica; mc, median cavity; tp, telopodite; tpc, telopodite coil; mf, metaplica fold; cf, collum fold; pfl, prefemoral lobe; pc, paracoxite.

Figure 2. B. aridis sp. n. A, telopodite apex; B, telopodite coil. Abbreviations: tp, telopodite; fl, femoral lobe, tpc, telopodite coil; tpal, telopodite apical lobe.