Antichiropus pendiculus Car, n. sp.

(Figs 27 A–F, 33)

ZooBank LSID: urn:lsid:zoobank.org:act: 4626A85B-2BEC-4286-B80C-9A9CB94C6E7C

Type material examined. Australia: Western Australia: holotype male (damaged, 1 gonopod missing), Area C, ca. 120 km NNW. of Newman, site 12-12N, 22°55’00.5”S, 118°54’37.7”E, 11 June 2008, night search, P. Bolton and J. Puglisi (WAM T91862, GenBank accession number 12S, MK 735742; 28S, MK 735806; COIII, MK 735927).

Other material examined. Australia: Western Australia: 1 juvenile, Area C, ca. 120 km NNW. of Newman, site 12-12B, 22°55’00.5”S, 118°54’37.7”E, 11 June 2008, active search, P. Bolton and J. Puglisi (WAM T91863, GenBank accession number 12S, MK 735743; 28S, MK 735807; COI, MK 735849; COIII, MK 735928; CytB, MK 735981); 1 juvenile, Area C, ca. 120 km NNW. of Newman, site 08-8B, 22°54’02.2”S, 118°59’35.4”E, 11 June 2008, active search, P. Bolton and J. Puglisi (WAM T91864, GenBank accession number 12S, MK 735744; 28S, MK 735808; COI, MK 735850; COIII, MK 735929; CytB, MK 735982); 1 juvenile, Packsaddle Range, 93 km NW. of Newman, 22°55’54.39”S, 118°45’52.15”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144498, GenBank accession number 12S, MK 735786; 28S, MK 735830; COI, MK 735908; COIII, MK 735965; CytB, MK 736013); 1 juvenile, Packsaddle Range, 108 km NW. of Newman, 22°53’53.22”S, 119°00’08.23”E (WAM T144499, GenBank accession number 12S, MK 735787; 28S, MK 735831; COI, MK 735909; COIII, MK 735966; CytB, MK 736014); 1 juvenile, Packsaddle Range, 108 km NW. of Newman, 22°55’54.39”S, 118°45’52.15”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144500, GenBank accession number 12S, MK 735788; 28S, MK 735832; COI, MK 735910; COIII, MK 735967; CytB, MK 736015); 1 specimen, Packsaddle Range, 108 km NW. of Newman, 22°55’30.35”S, 118°46’52.97”E (WAM T144501, GenBank accession number 12S, MK 735789; 28S, MK 735833; COI, MK 735911; COIII, MK 735968; CytB, MK 736016); 1 specimen, Packsaddle Range, 108 km NW. of Newman, 22°55’46.09”S, 118°47’15.22”E (WAM T144502, GenBank accession number 12S, MK 735790; 28S, MK 735834; COI, MK 735912; COIII, MK 735969; CytB, MK 736017); 1 juvenile, Packsaddle Range, 108 km NW. of Newman, 22°55’39.13”S, 118°48’18.70”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144503, GenBank accession number 12S, MK 735791; 28S, MK 735835; COI, MK 735913; COIII, MK 735970; CytB, MK 736018); 1 juvenile, Packsaddle Range, 93 km NW. of Newman, 22°53’19.12”S, 119°01’45.63”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144504, GenBank accession number 12S, MK 735792; COI, MK 735914; COIII, MK 735971; CytB, MK 736019); 1 specimen, Packsaddle Range, 93 km NW. of Newman, 22°53’29.28”S, 118°59’44.07”E (WAM T144505, GenBank accession number 12S, MK 735793; 28S, MK 735836; COI, MK 735915; COIII, MK 735972; CytB, MK 736020); 1 juvenile, Packsaddle Range, 80 km NW. of Newman, 22°55’02.95”S, 119°09’06.46”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144506, GenBank accession number 12S, MK 735794; 28S, MK 735837; COI, MK 735916; COIII, MK 735973; CytB, MK 736021); 1 specimen, Packsaddle Range, 80 km NW. of Newman, 22°55’11.12”S, 119°08’41.83”E (WAM T144507, GenBank accession number 12S, MK 735795; 28S, MK 735838; COI, MK 735917; COIII, MK 735974; CytB, MK 736022); 1 juvenile, Packsaddle Range, 80 km NW. of Newman, 22°54’33.82”S, 119°07’39.05”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144508, GenBank accession number 12S, MK 735796; 28S, MK 735839; COI, MK 735918; COIII, MK 735975; CytB, MK 736023); 1 female, Packsaddle Range, 80 km NW. of Newman, 22°53’45.40”S, 119°04’38.02”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144509, GenBank accession number 12S, MK 735797; 28S, MK 735840; COI, MK 735919; COIII, MK 735976; CytB, MK 736024); 1 specimen ca. 105 km NW. of Newman, 22°52’19.97”S, 118°51’37.73”E (WAM T144510, GenBank accession number 12S, MK 735798; 28S, MK 735841; COI, MK 735920; COIII, MK 735977; CytB, MK 736025); 1 juvenile, 105 km NW. of Newman, 22°53’48.88”S, 118°51’33.39”E, 1 June 2017, hand collected, B. Durrant and P. Cullen (WAM T144513, GenBank accession number 12S, MK 735799; 28S, MK 735842; COI, MK 735921; COIII, MK 735978; CytB, MK 736026); 1 specimen ca. 105 km NW. of Newman, 22°53’56.75”S, 118°51’05.72”E (WAM T144514, GenBank accession number 12S, MK 735800; 28S, MK 735843; COI, MK 735922; COIII, MK 735979; CytB, MK 736027); 1 specimen ca. 105 km NW. of Newman, 22°54’00.81”S, 118°51’14.40”E (WAM T144515, GenBank accession number 12S, MK 735801; 28S, MK 735844; COI, MK 735923; COIII, MK 735980; CytB, MK 736028).

Diagnosis. Gonopod: Antichiropus pendiculus Car, n. sp. is most similar to A. cirratus Car, n. sp. (Fig 7): both have long, slender, curled solenomeres, distinct from those of all other Pilbara species. Antichiropus cirratus has, however, a noticeable protuberance on the distal end of the femorite, lacking in A. pendiculus. The most noticeable feature of A. pendiculus is that it lacks a solenomere process of any description, though it does conform to the genus in its other characteristics (Car et al., 2013).

Description. Male holotype: Body ca. 12.5 mm long; midbody ring ca. 1 mm wide, with distinct, smooth waist, prozonite narrower than metazonite.

Colour (in alcohol) brown overall, pale brown ventrally (Fig 27A); leg colour as for body. No obvious paranota (Fig 27B).

Sternites without obvious processes/tubercles, sternal lamella narrow, heart-shaped. Leg coxal processes absent. Anterior spiracles at midbody small, flat.

Head smooth, with no sculpturing; frons smooth, with setae; face narrow, maximum width ca. 3x the distance between antennal sockets; sockets separated by ca. 1.5x width of socket. Antennae clavate, stocky, short, reaching only to collum, antennomere 5 wider than proximal ones.

Collum 0.8x as long as head (in lateral view) (Fig 27A).

Gonopod short, reaching ring 6; coxa (C) damaged (not shown in Fig 27); prefemur (PF) considerably shorter than femorite, setose; prefemoral lip pronounced; femorite (F) ca. 2/3 of acropodite length in situ, upright; main femoral process (MFP) slender, finger-like, pointed, curving over anterior femorite; second femoral process (fp1) large, pointed, triangular; prolongation of femorite (prof) absent; solenomere (S) very long, slender, smooth, form- ing circle that curls round at 45 o to the upright femorite; solenomere tip smooth, pointed; solenomere process (sp1) absent (Figs 27 C–F).

Female: unknown.

Distribution. To date, found only in a mining area known as Area C in the Pilbara region, west-north-west of the town of Newman (Fig 33).

Etymology. This species is named for the slender, long solenomere curled in a circle (Latin, noun, pendiculus, cord, noose).