Atelomastix anancita Edward & Harvey 2010, sp. nov.

Atelomastix anancita, sp. nov.

Figs. 8, 49, 77, 78.

Type material: AUSTRALIA: Western Australia: holotype male, Mount Diamond, Cape Arid National Park, south side near summit, 33°38’17”S, 123°29’49”E, hand collected under rocks, 5 June 2007, M.L. Moir, M.C. Leng (WAM T 83177). Paratypes: 1 male, collected with holotype (WAM T 83178); 23 males, 6 females, collected with holotype (WAM T 80681); 6 males, 18 females, collected with holotype (WAM T 80682); 1 female, collected with holotype (WAM T 80683); 2 males, 2 males, Mount Arid, Cape Arid National Park, south side near summit, 33°57’45”S, 123°13’01”E, hand collected under granite rocks, 5 June 2007, M.L. Moir, M.C. Leng (WAM T 80673).

Etymology: The species epithet is an adjective based on the type locality, Mount Diamond (anancitus, Latin, a name for the diamond when used as a remedy for distress of the mind).

Diagnosis: The male gonopod morphology of Atelomastix anancita is similar to that of A. melindae and A. flavognatha, as it has a distally bifurcated sclerite c and the tip of sclerite b extends between the bifurcation and beyond the edge of sclerite c. It can be distinguished from these species as the medial process of the sclerite c bifurcation is noticeably much longer than the lateral process. The distal end of sclerite b is elongate, not distinctly curved, and tapers gently to a rounded tip. Setae are situated only on the subdistal curved edge of sclerite b and do not extend towards the distal tip as in A. melindae.

Description: Male (holotype). Colour: generally mottled blue-grey, legs, mouthparts, gonopods golden brown; prozonites dark brown to pale brown, metazonites blue-grey in preserved specimens.

Body: ca. 34 mm long and ca. 2.3 mm wide at collum. With 56 trunk segments, 101 pairs of legs, last 2 segments without legs.

Head: with ca. 55 ocelli (Fig. 49), arranged in 7 rows (4: 8: 10: 10: 9: 8: 6).

Gonopods: anterior gonopods (Figs. 77–78) of medium to heavy sclerotisation, 2.2 times longer than broad; sclerite a with swollen base that forms broad, curved distal hood; upper distal face of sclerite a with 12–28 (n=2) short blunt setae; pseudoflagellum relatively short, fat and mostly visible beneath distal hood; sclerite b relatively narrow, tip extending between bifurcation and beyond edge of sclerite, tapering to blunt tip distally, with 7–11 sub-distal setae; basal process of sclerite b small, 0.06 times length of main process; sclerite c similar height as sclerite b, shallowly bifurcate, medial process longer, with 5–7 setae (n=2) below bifurcation; sub-basal setae absent where sclerites overlap and group of 7–8 (n=2) short setae sub-basally on sclerite c; posterior gonopods inconspicuous, small, with several small setae on interno-lateral face of each gonopod.

Dimensions (mm): holotype male (paratype male, WAM T83178): length ca. 34, width ca. 2.3, L/W=12.7; sclerite a 1.344 / 0.621 (1.265 / 0.525), setae 28 (12); sclerite b 0.403 (0.422), basal process of sclerite b 0.026 (0.032), setae 7 (11); sclerite c 0.960 (0.912), lateral process 0.045 (0.067), medial process 0.115 (0.093), setae 5 (7).

Female. Similar to male, other than sexual characters, and slightly larger.

Distribution and habitat: Atelomastix anancita is only known from rocky outcrops near the summit of Mount Diamond and Mount Arid in Cape Arid National Park (Fig. 8). All specimens were collected from beneath rocks.