Thyropygus cuisinieri

Pimvichai, Piyatida, Enghoff, Henrik & Panha, Somsak, 2011, A revision of the Thyropygus allevatus group. Part 4: the T. cuisinieri subgroup (Diplopoda: Spirostreptida: Harpagophoridae), Zootaxa 2980, pp. 37-48 : 39

Key to species of the cuisinieri subgroup

1 Apical part of telopodite with a relatively broad, round transparent lamellar lobe (sll); anterior coxal fold (ac) distally with two acuminate processes, the lateral one curving mesad ( Figs. 3 A, E)....... Thyropygus foliaceus ( Demange, 1961) , new status

1* Apical part of telopodite with a slender transparent lamellar lobe, mostly terminating in a sharp point (sll) ( Figs. 1 C, 2D, 4C)..................................................................................................... 2

2 Anterior coxal fold (ac) distally with two short, broadly triangular, straight, pointed processes ( Fig. 1 A).............................................................................................. Thyropygus carli Attems, 1938

2* Processes of anterior coxal fold (ac) longer, the lateral process curving mesad ( Figs. 2 A, 4A)......................... 3

3 Anterior coxal fold (ac) distally with two acuminate processes: the outer a slender, sharp spine, curving mesad: the inner basally broad, longer than the outer one, pointed, pointing distad; mesal process of posterior coxal fold (pmp) in posterior view hidden behind huge, thumblike lateral process (plp); tibial spine (ti) not constricted at base ( Figs. 2 A–D)........................................................................................... Thyropygus cuisinieri Carl, 1917

3* Anterior coxal fold (ac) distally with two processes: a lateral slender, sharp spine, curving mesad, and a mesal, broadly triangular, pointed process pointing distad; lateral process of posterior coxal fold (plp) much smaller, leaving mesal process of posterior coxal fold (pmp) visible in posterior view; tibial spine (ti) distinctly constricted at base ( Figs. 4 A–C)........................................................................................... .. Thyropygus jarukchusri n. sp.

Figures

FIGURE 1. Thyropygus carli (specimen from Nhatrang), gonopods. A: anterior view, left telopodite removed. B: posterior view, left telopodite removed. C: left telopodite, posterior-mesal view. D: left telopodite, anterior-lateral view.

FIGURE 2. Thyropygus cuisinieri (specimen from Koh Kut, except C), gonopods. A: anterior view, left telopodite removed. B: posterior view, left telopodite removed. C: posterior view, left telopodite removed (specimen from SE part of Koh Tang). D: left telopodite, posterior-mesal view. E: left telopodite, anterior-lateral view.

FIGURE 3. Thyropygus foliaceus (specimen from Phu-Wiang, except B, D), gonopods. A: anterior view, left telopodite removed. B: anterior view, anterior view (specimen from Phataem National Park). C: posterior view, left telopodite removed. D: posterior view, left telopodite removed (specimen from Phataem National Park). E: left telopodite, posterior-mesal view. F: left telopodite, anterior-lateral view.

FIGURE 4. Thyropygus jarukchusri, holotype, gonopods. A: anterior view, left telopodite removed. B: posterior view, left telopodite removed. C: left telopodite, posterior-mesal view. D: left telopodite, anterior-lateral view.