Antichiropus patriciae 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 : 44-46

Antichiropus patriciae Car , n. sp.

( Figs 25 , 26 A–F)

ZooBank LSID: urn:lsid:zoobank.org:act:0E936CE3-19B4-47A4-885A-21BA2E7D286A

Type material examined. Australia: Western Australia: holotype male (badly damaged), 53 km NNE of Whim Creek Hotel , site DRE03, 20°25’48”S, 118°03’50”E, May 2004, CALM staff ( Pilbara Biological Survey ) ( WAM T146652 ) . Paratypes: 1 male, 9 km NE. of Cowra Line Camp, Pilbara Biological Survey site RHNW11 , 22°17’38.8”S, 119°03’40.9”E, May 2004, CALM staff ( Pilbara Biological Survey ) ( WAM T76079) .

Other material examined. Australia: Western Australia: 1 male, 2 females, 4 juveniles (damaged), 20 km ESE of Whim Creek Hotel , site DRE12, 20°54’36”S, 117°58’58”E, May 2004, CALM staff ( Pilbara Biological Survey ) ( WAM T76057) ; 2 males, 2 females, 53 km NNE of Whim Creek Hotel , site DRE03, 20°25’48”S, 118°03’50”E, May 2004, CALM staff ( Pilbara Biological Survey ) ( WAM T76074) ; 1 male, 1 female, 13 km SSE of Wodgina , site MBW10, 21°16’47”S, 118°41’56”E, 23 September 2005 – 15 May 2006, ethylene glycol pitfall traps, CALM staff ( Pilbara Biological Survey ) ( WAM T124592 ) ; 1 male, 5km NNE. of Wodgina , site MBW09, 21°07’41”S, 118°41’22”E, 23 September 2005 – 15 May 2006, ethylene glycol pitfall traps, CALM staff ( Pilbara Biological Survey ) ( WAM T124595 ) ; 1 male, 1 female (damaged), 22.5 km SSE of Wodgina , site MBW11, 21°21’52”S, 118°42’04”E, 23 September 2005 – 15 May 2006, ethylene glycol pitfall traps, CALM staff ( Pilbara Biological Survey ) ( WAM T124624 ) ; 3 males, 1 females, 13 km SSE of Wodgina , site MBW10, 21°16’47”S, 118°41’56”E, 23 September 2005 – 15 May 2006, ethylene glycol pitfall traps, CALM staff ( Pilbara Biological Survey ) ( WAM T124625 ) .

Diagnosis. Gonopod: Antichiropus patriciae Car , n. sp. is unmistakeable: it has two long solenomere processes halfway along the length of the solenomere and a second femoral process with a distinct anvil-shaped structure at its base.

Description. Male holotype: Body ca. 20 mm long; midbody ring ca. 2 mm wide, with distinct, smooth waist, metazonite slightly wider than prozonite.

Colour (in alcohol) dark brown, cream ventrally ( Fig 26A ): leg colour, paler. No paranota ( Fig 26B ).

Sternites without obvious processes/tubercles, sternal lamella short, square, broad. Leg coxal processes absent. Anterior spiracles at midbody, small, ovoid, slightly folded.

Head smooth without noticeable sculpturing; frons smooth, setose; face narrow, cardines visible when viewed face-on, maximum width ca. 4x the distance between antennal sockets; sockets separated by ca. 2x width of sock- et.

Antennae relatively slender, of moderate length, reaching to ring 2, antennal segments of similar length and width.

Collum 1x long as head (in lateral view) ( Fig 26A ).

Gonopod short, reaching ring 6; coxa (C)much more robust, shorter, than femorite, with very slight ridge on anterior surface; prefemur (PF) much shorter than femorite, with few setae, prefemoral lip low but pronounced; femorite (F) short, squat, curved, broader at apex; main femoral process (MFP), long with pointed tip reaching solenomere. Distinctive anvil-shaped structure at base; second femoral process (fp1) at least 1/2 femorite length, robust, pointed, curves upwards towards solenomere; prolongation of femorite (prof) absent; solenomere (S) relatively long, forming a loop/circle, narrower than femorite, of similar width along its length but broadest mid-length, narrowing to slender squared-off tip; solenomere process (sp1) not at tip, paired with second solenomere process (sp2) halfway along length of solenomere; both processes long, pointed ( Figs 26 C–F).

Female: Similar to the male but slightly broader legs (WAM T76057).

Distribution. This species has been collected from several sites in the northern Pilbara ( Fig 25 ).

Etymology. This species is named for the senior author’s younger daughter, Patricia Mellows.

Figures

FIGURE 25. Map showing the known distributions of A. hystricosus Car, n. sp., A. julianneae Car, n. sp., A. literulus Car, n. sp., A. lucyae Car, n. sp., A. patriciae Car, n. sp. and A. nicholasi Car, n. sp.

FIGURE 26. Antichiropus patriciae Car, n. sp., holotype male (WAM T146652):A–B, habitus: A, lateral view; B, dorsal view; C–F, left gonopod: C, posterior view; D, anterior view; E, medial view; F, lateral view. Abbreviations: C, coxa; F, femorite; fp1, femoral process two; MFP, main femoral process; PF, prefemur; S, solenomere; sp1 and sp2, solenomere processes 1 and 2. Scale bars: A = 2 mm; B = 1 mm; C–F = 0.5 mm.