Antichiropus rupinus Car, 2019

Car, Catherine A., Harvey, Mark S., Hillyer, Mia J. & Huey, Joel A., 2019, The millipede genus Antichiropus (Diplopoda: Polydesmida: Paradoxosomatidae), part 3: species of the Pilbara bioregion of Western Australia, Zootaxa 4617 (1), pp. 1-71 : 52-53

Antichiropus rupinus Car , n. sp.

( Figs 31 A–E, 33)

ZooBank LSID: urn:lsid:zoobank.org:act:42A3B2D6-4381-44FD-BDDB-A736A64D882C

Type material examined. Australia: Western Australia: holotype male, Karijini National Park, near Ranger’s Station , 22°34’17”S, 118°22’41”E, 14 March 2015, in leaf litter, R. Teale and M. Harvey, et al. ( WAM T135512 ) . Paratype: 1 male (damaged), Karijini National Park , ca. 21 km SW of Dale’s Gorge, alt. 700 m, site MAM1, 22°34’16”S, 118°22’37”E, 16 March 2015, dry pitfall trap, M. Hillyer, et al. ( WAM T135581 , GenBank accession number 12S, MK 735770 ; 28S, MK 735828 ; COIII, MK 735949 ) .

Diagnosis. Gonopod: Antichiropus rupinus Car , n. sp. is easily separated from all other Pilbara species because, instead of a prolongation of femorite on the gonopod, this species has 6 small teeth.

Description. Male holotype: Body ca. 15 mm long; midbody ring ca. 2 mm wide, with indistinct, smooth waist, prozonite and metazonite of similar width.

Colour (in alcohol) dark brown, paler ventrally ( Fig 31A ): leg colour, mid brown. No paranota ( Fig 31B ).

Sternites without obvious processes/tubercles, sternal lamella broad, rounded. Leg coxal processes absent. Anterior spiracles at midbody, small, ovoid, flat.

Head smooth without noticeable sculpturing; frons sparsely setose; face narrow, maximum width ca. 3x the distance between antennal sockets; sockets separated by ca. 2x width of socket.

Antennae short, reaching to collum, robust, segments 5 and 6 only slightly broader than remainder, short.

Collum 1x length of head (in lateral view) ( Fig 31A ).

Gonopod of medium length, reaching ring 5; coxa (C) more robust than femorite, 1/2 femorite length with pronounced ridge on anterior surface; prefemur (PF) similar length to coxa, setose, prefemoral lip pronounced; femorite (F) 2/3 acropodite length, upright, slender for proximal half, then broadening slightly to narrow again at solenomere base; main femoral process (MFP) small, upright, pointed (fig); second femoral process (fp1) slender, curved, near femorite apex; prolongation of femorite (prof) represented by 6+ small teeth; solenomere(S) more slender than femorite, C-shaped, narrowing near tip, then broadening to a flattened tip; solenomere process 1 (sp1) near solenomere tip, very slender, curved, pointed ( Figs 31 C–E).

Female: Unknown.

Distribution. To date, this species has been found only in the Karijini National Park in the Pilbara region ( Fig 33 ).

Etymology. This species is named for the fact that it was found near one of the gorges in the Karijini National Park (Latin, noun, rupina, rocky chasm).

Figures

FIGURE 31. Antichiropus rupinus Car, n. sp., holotype male (WAM T135581): A–B, habitus: A, lateral view; B, dorsal view; C–E, left gonopod: C, posterior view; D, anterior view; E, medial view. Abbreviations: C, coxa; F, femorite; fp1, femoral process 1; MFP, main femoral process; PF, prefemur; prof, prolongation of femorite; S, solenomere; sp1,solenomere process 1. Scale bars: A-B = 2 mm; C–F = 1mm.

FIGURE 33. Map showing the known distributions of A. nimbus Car, n. sp., A. pendiculus Car, n. sp., A. picus Car, n. sp., A. procerus Car, n. sp., A. quaestionis Car, n. sp., A. rupinus Car, n. sp. and A. salutus Car, n. sp..