Lissodesmus otwayensis, Mesibov, 2005

Mesibov, Robert, 2005, The millipede genus Lissodesmus Chamberlin, 1920 (Diplopoda: Polydesmida: Dalodesmidae) from Tasmania and Victoria, with descriptions of a new genus and 24 new species, Memoirs of Museum Victoria 62 (2), pp. 103-146 : 121

publication ID

https://doi.org/ 10.24199/j.mmv.2005.62.4

DOI

https://doi.org/10.5281/zenodo.8066877

persistent identifier

https://treatment.plazi.org/id/03BDAA31-F552-FFB6-87E4-F2E44D2F89F6

treatment provided by

Felipe

scientific name

Lissodesmus otwayensis
status

sp. nov.

Lissodesmus otwayensis View in CoL sp. nov.

Figures 60, 61, 69pen, 70pen, 71pen, 72 (map)

Figures 58, 59, 69otw, 70otw, 71otw, 79 (map)

Material examined. Holotype. Male, Australia, Victoria. Calder Ridge , 38°42'41''S 143°34'03''E, 380 m, 13.xii.2003, R. Mesibov & T. Moule, NMV K-9614. GoogleMaps

Paratypes. Male , 2 miles W of Apollo Bay, 8.iii.1975, M. Campbell, NMV K-9607; 1 stadium 7 male, 1 female, 2 stadium 7 females, Aire Crossing Track, 0.5 km N of Aire R crossing, 38°40'S 143°29'E, 31.i.1995, G. Milledge, direct search, sample NOH-1086, NMV GoogleMaps K-9608 to K-9611; 2 males, Turtons Pass , 38°38'43''S 143°40'36''E, 420 m, 12.xii.2003, R. Mesibov & T. Moule, NMV GoogleMaps K-9612, K-9613, 1 dissected; 2 males, same details, AM KS91182 ; 2 males, details as for holotype, NMV K-9618, K-9619, 1 dissected; 3 females, details as for holotype, NMV K-9615 to K-9617; 7 males, Cape Horn , 38°44'13''S 143°34'30''E, 280 m, 13.xii.2003, R. Mesibov & T. Moule, NMV GoogleMaps K-9620 to K-9626, 2 dissected; 2 males, 1 female, Diamond Hill , 38°27'05''S 143°56'10''E, 360 m, 14.xii.2003, R. Mesibov & T. Moule, NMV GoogleMaps K-9627 to K-9629, 1 male dissected; male, same details but 38°27'00''S 143°56'14''E, NMV GoogleMaps K-9630.

Description. Male c. 17 mm long, H = 1.6 mm. In alcohol, well-coloured specimens under low magnification pale brown in body colour with red speckling dorsally on prozonites and metatergites, and a darker, transverse red band posteriorly on metatergites. Antennae short, clavate ( Fig. 69 View Figure 69 otw), about 1.75X a socket diameter apart. Paranota reduced, R = 1.4 ( Fig. 70 View Figure 70 otw), posterior corners not turned up. Legs robust, tarsus longer than femur, tibia with prominent ventral distal swelling ( Fig. 71 View Figure 71 otw). Telopodite ( Figs 58 View Figure 58 , 59 View Figure 59 ) reaching leg 5 when retracted, with posterolateral row of sparse long setae running well distal to process origins, the base posteriorly somewhat excavate just below process origins. Solenomere arising at one-third the telopodite height, directed posterodistally at c. 45° to telopodite axis, curving very slightly laterally, terminating with small subapical projection at just under one-third the prefemoral process height. Tibiotarsus rod-like, bluntly pointed, more or less parallel to solenomere but somewhat narrower and about half its length. Femoral process arising distal to solenomere origin, blade-like, forked at about half its length, both branches wide and apically pointed; anterior branch curving anteriorly and terminating at about one-third the prefemoral process height (just distal to solenomere tip); posterior branch directed posterodistally and curving slightly mesally. Prefemoral process curving slightly laterally, narrowing and curving posteriorly and distally at just over half the process height, with a sharply pointed “shoulder” on the mesal edge marking the bend, distally bending sharply mesally and tapering to blunt point, almost the whole of the lateral edge distal to the bend a comb of c. 30–40 long, straight teeth. Uncus arising at just under half the prefemoral process height (distal to solenomere tip) on mesal edge of process.

Distribution and habitat. In wet eucalypt forest and cool temperate rainforest in the Otway Ranges ( Fig. 79 View Figure 79 ).

Etymology. Named for the Otway Ranges, where this species appears to be abundant.

NMV

Museum Victoria

AM

Australian Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Polydesmida

SubOrder

Dalodesmidea

Family

Dalodesmidae

Genus

Lissodesmus

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