Pandirodesmus, Silvestri, 1932

Vandenspiegel, Didier, Golovatch, Sergei I. & Rutherford, Mike G., 2022, The millipede genus Pandirodesmus Silvestri, 1932 in Trinidad and Tobago, Caribbean, with the description of P. jaggernauthi sp. nov. from Trinidad (Diplopoda, Polydesmida, Chelodesmidae, Pandirodesmini), Zootaxa 5104 (4), pp. 567-576 : 575

Key to species of Pandirodesmus

1(2) Male unknown, adult female larger: length ca 13 mm, width 2.1 mm. Guyana............................. P. disparipes

2(1) Adult males and females smaller: length up to 10 mm. width up to 1.4 mm. Trinidad and Tobago...................... 3

3(4) Gonopodal telopodite with a longer and more strongly curved primary branch (pb), a smaller prefemoral process (pfp) with fewer “folds”, and a longer and slimmer secondary branch (sb) ( Figs 4A, C, F ). Trinidad.....…………… P. jaggernauthi sp. nov.

4(3) Gonopodal telopodite with a shorter and less strongly curved primary branch (pb), a larger prefemoral process (pfp) with more numerous “folds”, and a shorter and more stout secondary branch (sb) ( Figs 2A, B, C, E ). Tobago.......... … P. rutherfordi

Figures

FIGURE 2. Pandirodesmus rutherfordi Shelley & Smith, 2015, SEM micrographs of gonopods. A: both gonopods in situ, ventral view; B, C: right gonopod, subanterior and submesal views, respectively; D: details of apical part of right gonopod; E: right gonopod, subcaudal view. Abbreviations: cx: coxa, pb: primary branch, pfp: prefemoral process, sl: solenomere, sb: secondary branch. Scale bars: A = 100 µm; B = 50 µm; C, E = 100 µm; D = 20 µm.

FIGURE 4. Pandirodesmus jaggernauthi sp. nov. (SEM micrographs). A: both gonopods in situ, ventral view; B, C: right gonopod, subventral and submesal views, respectively; D, E: details of apical part of left gonopod, subanterior view; F: left gonopod, sublateral view. Abbreviations: cx: coxa, pb: primary branch, pfp: prefemoral process, sl: solenomere, sb: secondary branch. Scale bars: A, B = 100 µm; C, F = 50 µm; B, E = 20 µm.