Atelomastix montana, Edward & Harvey, 2010

Edward, Karen L. & Harvey, Mark S., 2010, A review of the Australian millipede genus Atelomastix (Diplopoda: Spirostreptida: Iulomorphidae) 2371, Zootaxa 2371 (1), pp. 1-63 : 28

publication ID	https://doi.org/ 10.11646/zootaxa.2371.1.1
publication LSID	lsid:zoobank.org:pub:6140530D-9F81-4443-AFD1-7EF84005E834
DOI	https://doi.org/10.5281/zenodo.5319930
persistent identifier	https://treatment.plazi.org/id/0FDA1082-2E61-4282-B054-92ED1A1C8557
taxon LSID	lsid:zoobank.org:act:0FDA1082-2E61-4282-B054-92ED1A1C8557
treatment provided by	Felipe
scientific name	Atelomastix montana
status	sp. nov.

Treatment

Atelomastix montana View in CoL , sp. nov.

Figs. 1 View FIGURES 1–3 , 6 View FIGURES 4–6 , 66, 114, 115.

Type material: AUSTRALIA: Western Australia: holotype male, south face of Pyungoorup Peak, Stirling Range National Park , 34°22’17”S, 118°19’20”E, wet pitfall traps, 27 April 1996, M.S. Harvey, J.M. Waldock, B.Y. Main ( WAM T 72777) GoogleMaps . Paratypes: 3 males, collected with holotype ( WAM T 69804) GoogleMaps ; 3 males, 6 females, north end of South Isongerup Track, Stirling Range National Park , 34°22’24”S, 118°16’58”E, hand collection under logs, 8 April 2004, M.S. Harvey, J.M. Waldock, K. Edward, C. Poustie ( WAM T 69441, T 72805) GoogleMaps .

Other material examined: AUSTRALIA: Western Australia: Stirling Range National Park : 1 male, south face of Pyungoorup Peak , 4°22’17”S, 118°19’20”E, wet pitfall traps, 4 August 1996, M.S. Harvey, J.M. Waldock, B.Y. Main ( WAM T 69806) GoogleMaps ; 2 males, north end of South Isongerup Track , 34°22’25”S, 118°16’59”E, hand collected from creek bank, 16 March 2005, M.S. Harvey, J.M. Waldock, K. Edward ( WAM T 69817) GoogleMaps ; 1 male, 8 females, Stirling Range National Park, base of Pyongurup Peak , 34°22’01"S, 118°19’48"E, 5 August 2008, from ground, litter, M.G. Rix, M.S. Harvey ( WAM T 54251) GoogleMaps ; 1 male, SE. of Coyanarup Peak , 34°23’34”S, 118°16’04”E, hand collected in creek bed leaf litter, 7 March 2005, M.S. Harvey, J.M. Waldock, K. Edward, C. Poustie ( WAM T 72806) GoogleMaps ; 2 males, western end of Ellen track, 34°23’04”S, 118°17’17”E, wet pitfall traps, 30 April 1996, M.S. Harvey, J.M. Waldock, B.Y. Main ( WAM T47931, T47932) GoogleMaps ; 3 males, 5 females, western end of Ellen track, 34°22’54”S, 118°17’25”E, hand collected under logs, 8 April 2004, M.S. Harvey, J.M. Waldock, K. Edward, C. Poustie ( WAM T70202, T74315– T 74316) GoogleMaps .

Etymology: This species is named for its occurrence in the montane regions of the Stirling Range National Park (montanus, Latin, pertaining to mountains).

Diagnosis: Atelomastix montana is similar to A. tumula , A. danksi and A. poustiei as the anterior gonopod sclerite a is broad and concave sub-medially enveloping an elongate flagellum beneath a broad distal hood. However, it can be distinguished from other species because sclerite a is only distally bifurcated with the medial process longer than the lateral process, and sclerite b tapers to a narrow point, not extending to sclerite c, with the basal process longer than wide.

Description: Male (holotype). Colour ( Fig. 1 View FIGURES 1–3 ): head, collum, anal segment dark brown, ozopores and legs golden-brown, prozonites blue grey, metazonites dark brown to grey in preserved specimens.

Body: ca. 18 mm long and ca. 1.6 mm wide at collum. With 51 trunk segments, 91 pairs of legs, last 2 segments without legs.

Head: with numerous ocelli ( Fig. 66), ca. 29, in 4 rows (5: 6: 8: 10).

Gonopods: anterior gonopods ( Figs. 114, 115) very large, heavily sclerotised and complex in structure, 2.19 times longer than broad; sclerite a with swollen base that forms broad, concave area where pseudoflagellum emerges, and broad, curved distal hood; sub-distal edge of concave area of sclerite a with 3–6 setae (n=4); upper distal face of sclerite a with 12–14 (n=4) short blunt setae; pseudoflagellum long, elongate and partially obscured by broadened distal hood; sclerite b elongate and curved, tapering to a very narrow, curved, rounded tip, setae absent; basal process of sclerite b broad and triangular, 0.33 times the length of the main process; sclerite c slightly longer than sclerite b, broad and slightly concave medially, slightly tapering to a blunt, concave tip, with 6–10 setae (n=4) on internal concave face; with 1 seta on sub-basal edge of sclerite b instead group of setae where sclerites overlap, and group of 12–14 (n=4) 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 T 69804): length ca. 18, width ca. 1.6, L/W=11.2; sclerite a 0.979 / 0.485 (1.024 / 0.476), setae 12 + 6 (12 + 4); sclerite b 0.431 (0.448), basal process of sclerite b 0.142 (0.176), setae 0 (0); sclerite c 0.787 (0.816), setae 10 (10) GoogleMaps .

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

Distribution and habitat: Atelomastix montana has been found at a number of sites in the eastern part of Stirling Range National Park, including Pyungoorup Peak, near Coyanarup Peak, and along the South Isongerup Track ( Fig. 6 View FIGURES 4–6 ).