The millipede genus Antichiropus (Diplopoda: Polydesmida: Paradoxosomatidae), part 3: species of the Pilbara bioregion of Western Australia Author Car, Catherine A. Author Harvey, Mark S. Author Hillyer, Mia J. Author Huey, Joel A. text Zootaxa 2019 2019-06-17 4617 1 1 71 journal article 26472 10.11646/zootaxa.4617.1.1 3b74fc4d-1008-4903-90df-59d68431dee1 1175-5326 3248154 50F4058E-2871-4B5B-97D2-1CB216841C1E Antichiropus georginae Car , n. sp. ( Figs 16 , 17 A–F) ZooBank: urn:lsid:zoobank.org:act: 648B7C31-211A-48CE-95B8-5BF7A02E2BBA Type material examined. Australia : Western Australia : holotype male (damaged), 26 km WNW of Mt Berry , site WYE08, 22°25’31.1”S , 116°12’55.1”E , May 2004 , ethylene glycol pitfall traps, CALM staff (Pilbara Biological Survey) ( WAM T145175 ) . Paratypes : 1 female , collected with holotype ( WAM T76076) 33.4 km SW. of); 1 male (badly damaged), 2 female , Mt Stuart Station , NE of the homestead, site WYE11, 22°24’29”S , 116°22’18”E , 26 November 2003 – 2 May 2004 , ethylene glycol pitfall traps , CALM staff (Pilbara Biological Survey) ( WAM T75680) . Other material examined. Australia : Western Australia : 1 male (damaged), Barlee Range Nature Reserve , site BR7 , 23°22’45”S , 115°52’50”E , 11–14 June 1994 , dry pitfall traps , P.G. Kendrick and G.W. Kendrick ( WAM T71989) ; 1 male (badly damaged), Mt Stuart station , E of the homestead, site WYE10, 22°25’48”S , 116°16’47”E , 26 November 2003 – 2 May 2004 , ethylene glycol pitfall traps , CALM staff ( Pilbara Biological Survey ) ( WAM T76144) ; 1 female (damaged), Pilbara Biological Survey site WYE 10, Mt Stuart Station , E. of homestead, 22°25’48”S , 116°16’47”E , 26 November 2003 – 2 May 2004 , wet pitfall trap , CALM staff ( Pilbara Biological Survey ) ( WAM T76157) . Diagnosis. Gonopod: Antichiropus georginae Car , n. sp. is very similar in appearance to A. uvulus Car , n. sp. ( Fig 38 ): A. georginae has, however, a small pointed process at the base of the main femoral process (anterior view) lacking in A. uvulus . The main femoral process is nearly half the length of the solenomere on the A. georginae gonopod but only 1/3 of solenomere length in A. uvulus . Description. Male holotype : Body ca. 25 mm long; midbody ring ca. 2 mm wide, with distinct, smooth waist, prozonite and metazonite of similar width. FIGURE 16. Map showing the known distributions of A. cunicularis Car , n. sp. , A. echinus Car , n. sp. , A. filiolus Car , n. sp. , A. forcipatus Car , n. sp. , A. georginae Car , n. sp. , and A. gibbus Car , n. sp. Colour (in alcohol) chestnut brown, cream ventrally ( Fig 17A ): leg colour, pale yellow-brown with chestnut brown tips. No paranota ( Fig 17B ). Sternites without obvious processes/tubercles, sternal lamella square. Leg coxal processes absent. Anterior spiracles at midbody, small, ovoid, flat. Head smooth without noticeable sculpturing; frons smooth with few setae; face narrow, cardines visible when viewed face-on, maximum width ca. 3x the distance between antennal sockets; sockets separated by ca. 2x width of socket. Antennae short, reaching to collum, antennal segments of similar length and width. Collum slightly shorter than head (in lateral view) ( Fig 17A ). Gonopod short, reaching ring 6; coxa (C) slightly broader than femorite, with slight ridge on anterior surface; prefemur (PF) much shorter than femorite, setose, prefemoral lip pronounced; femorite (F) 2/3 acropodite length, upright, slightly thicker at apex; main femoral process (MFP) curved in the same orientation as solenomere, at least 2/3 femorite length, slightly broader at distal end, bird beak shaped with distinct asymmetrical point; second femoral process (fp1), small pointed process at base of the MFP, when viewed posteriory; second femoral process (fp1) absent; prolongation of femorite (prof) represented only by a transparent flange; femorite ending in a slight curve at distal end; solenomere (S) relatively short, broad and bulbous at base, dipping towards femorite, then forming an L-shape, narrowing to a distinct ‘waist’ near distal end, before terminating in a pincer-like structure; solenomere process (sp1) at solenomere tip, very small, upright pointed,; second solenomere process (sp2) near solenomere tip, relatively broad, pointed, leaf-shaped, forming pincer-like structure with solenomere tip ( Figs 17 C–F). Female: Similar to the male, but generally more robust with shorter legs (WAM T75680). Distribution. This species is known from a small area of the Pilbara, mainly Mt Stuart Station ( Fig 17 ). Etymology. This species is named for Georgina Lambert, a dedicated volunteer in the Arachnology section of the Western Australian Museum.