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 literulus Car , n. sp. ( Figs 21 A–G, 25) ZooBank LSID: urn:lsid:zoobank.org:act: 1356FE51-A508-4637-A324-9A138E975374 Type material examined. Australia : Western Australia : holotype male (badly damaged, lacking posterior segments), 29 km NNW of Balfour Downs Homestead , Pilbara Biological Survey site BDR7, 22°32’39”S , 120°47’57”E , 10 September 2005 – 14 May 2006 , ethylene glycol pitfall trap , CALM staff ( WAM T144608 ) . Paratypes : 1 male (damaged), collected with holotype ( WAM T137471 ); 1 male , 2 females (damaged), collected with holotype ( WAM T146716 ) . Diagnosis. Gonopod: A. literulus Car , n. sp. is a minute species, similar in that regard to A. filiolus Car , n. sp. ( Fig 14 ) but the former can be recognised by its distinctive L-shaped main femoral process. Description. Male holotype : Body , ca. 10 mm long; midbody ring ca. 1.5 mm wide, with distinct, smooth waist, prozonite and metazonite of similar widths. Colour unknown, specimen bleached ( Fig 21A ); leg colour bleached. No paranota ( Fig 21B .). Sternites without obvious processes/tubercles, sternal lamella broad, relatively square. Leg coxal processes absent. Anterior spiracles at midbody, flat. Head smooth, with no sculpturing; frons smooth, with some setae; face moderately narrow, maximum width ca. 3x the distance between antennal sockets; sockets separated by ca. 1.5x width of socket. Antennae of moderate length, reaching to ring 2, antennomeres not obviously clavate. Collum ca. 0.75x length of head (in lateral view) ( Fig21A ). Gonopod of medium length, reaching ring 5; coxa (C) more robust and much shorter than femorite; prefemur (PF) considerably shorter than femorite, slightly setose with noticeable lip; femorite (F) 2/3 length of acropodite, slender at base, thickening suddenly one-third along its length; main femoral process (MFP) 1/4 femorite length, relatively broad, pointed with distinct ‘elbow’ (L-shaped) and a translucent flange in anterior view; prolongation of femorite (prof) 1/2 length of femorite, narrow, curved, pointed; solenomere (S) broadest in the proximal half; solenomere tip slender, narrow, rounded; solenomere process (sp1) bifurcate; second solenomere process (sp2) tiny, pointed, triangular, halfway along solenomere ( Figs 21 C–G). Female: Similar to male, but broader (ca. 2 mm dorsally) and stouter (lateral view): legs shorter (WAM T13771). Distribution. This species has been collected only from a single locality near Balfour Downs Homestead ( Fig 25 ). Etymology. Antichiropus literulus is named for its L-shaped main femoral process (Latin, noun, literula , diminutive form of the letter L).