Agathodesmus adelphus, Mesibov, Robert, 2013

Mesibov, Robert, 2013, New species of Agathodesmus Silvestri, 1910 from Australia (Diplopoda, Polydesmida, Haplodesmidae), ZooKeys 325, pp. 33-64: 39-41

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Agathodesmus adelphus

sp. n.

Agathodesmus adelphus  sp. n. Fig. 6A


Male, Mt Bartle Frere, Qld, west slopes, 17°22'57"S, 145°46'45"E ± 500m, 800-1000 m a.s.l., 30 December 1989, G. Monteith, QM S96015.


1 female, details as for holotype, QM S96016.

Other material.


Diagnostic description.

Male and female with head + 20 rings. Colour in alcohol very faintly reddish. Male/female ca 8.0/8.5 mm long; ring 12 maximum diameter ca 0.6/0.7 mm, maximum width ca 0.85/0.9 mm. Metatergal tubercles in 8-10 irregular transverse rows, mostly without setae; metatergal setae short with slightly flared tips; lateralmost two rows of tubercles not enlarged, together forming narrow pseudo-paranotum with 6 marginal tubercles. Male leg 6 coxa with small, rounded, mediodistal projection. Telopodite (Fig. 6A) with pp straight; at in longitudinal plane, short and rounded-triangular; dp directed laterobasally at base; mab concave medially, deeply divided with smaller medial lobe bent posteriorly, tapering and with sharp subterminal tooth on lateral surface; larger, lateral mab lobe widening to thickened, emarginate apex; meb curving strongly behind mab, divided at ca one-third length into 2 thin processes.


Known only from rainforest high on Mt Bartle Frere in tropical north Queensland (Fig. 13A). Possibly co-occurs on Mt Bartle Frere with Agathodesmus quintanus  sp. n. and Agathodesmus summus  sp. n., although both these species are found at higher elevations on the mountain.


Latin adelphus, 'brother', a punning reference to the 'Frere' in the name of the type locality; adjective.


Fig. 6A shows two unidentified mites, one on each telopodite. They have not been removed from the holotype.