Two new and unusual genera of millipedes (Diplopoda: Polydesmida) from Tasmania, Australia Author Mesibov, Robert text Zootaxa 2003 368 1 32 journal article 51241 10.5281/zenodo.157087 2e793b2d-9ce7-47f0-8590-69ee8ec38fd2 1175­5326 157087 Paredrodesmus monticolus n. sp. Figs. 6 , 10 , 11 , map Fig. 12 D Holotype : Male, Butlers Gorge, DP401203 ( 42°16’01”S , 146°16’25”E ), 720m , 18.ii.1994 , R. Mesibov , QVM 23 :25484. Paratypes : 3 males , details as for holotype , AM KS86292 ; 2 males , details as for holotype , QVM 23 :41154; 4 males , Little Florentine River , DN525683 ( 42°44’10”S , 146°25’10”E ), 440m , 13.iii.1986 , R. Bashford , QVM 23 :41148, pitfall, one specimen in fragments. Other material examined : 23 males . See Appendix for details. Diagnosis : Distinguished from other Paredrodesmus by the unique form of the gonopod. FIGURE 10. SEM view of Paredrodesmus gonopods in situ , anterior to left. (Left) P. monticolus n. sp. , QVM 23:41158; scale bar = 0.5 mm. (Right) P. purpureus n. sp. , QVM 23:41525; scale bar = 0.45 mm, ‘s’ = solenomerite. Description : As for the genus. Males 10–12 mm long, 0.9–1.0 mm in maximum vertical diameter. In alcohol, well­coloured adults are pale with reddish mottling on distal anntennomeres and metazonites, notably around ozopores. Antennal bases separated by ca . 1.25 times a base diameter, antennomere 6 about one and a quarter times the width of 5. Legpairs 6 and 7 with a wide gap between coxae, legpair 5 with a narrower gap, legpair 4 with a small gap; flexed gonopods reach nearly to legpair 4. Genital opening on leg 2 coxa on a prominent mesal projection ( Fig. 6 A). Gonopod aperture with rear margin slightly raised in the middle. Telopodites ( Fig. 10 ) closely pressed together but not fused, the contact surfaces flat, the outer surface rounded. Telopodite base small with a few short and long setae; the distal portion of the telopodite ( Fig. 11 ) arising medially, first bending cephalad, then curving smoothly caudad before expanding into a broad tip with a slightly rounded distal surface. Prostatic groove running along the mesal surface of the telopodite before turning laterad across the telopodite tip and ending in a very small, bluntly pointed solenomerite situated nearly in the middle of the tip. Arising from the anteromesal corner of the tip is a short, blunt process armed with 10–15 short, laterally directed setae; a cluster of ca . 20 variably long, peg­like structures, directed proximad and slightly laterad, is attached to the posterolateral corner of the tip. FIGURE 11. Lateral view of left gonopod telopodite of Paredrodesmus monticolus n. sp. , QVM 23:41155. Basal setation not shown; dashed line marks course of prostatic groove. Distribution and habitat : In well­rotted litter, humus and richly organic soil over ca . 11 0 0 0 km 2 in central Tasmania from 150 m to at least 1250 m , mainly in wet eucalypt forest and Nothofagus rainforest ( Fig. 12 D). Overlaps in range with P. bicalcar , co­occurs with P. taurulus . An uncommon species. Etymology : Latin monticolus , mountain­dwelling, adjective. This species has mainly been collected at higher elevations.