Orthomorpha pterygota Golovatch, 1998

Likhitrakarn, Natdanai, Golovatch, Sergei I. & Panha, Somsak, 2011, Revision of the Southeast Asian millipede genus Orthomorpha Bollman, 1893, with the proposal of a new genus (Diplopoda, Polydesmida, Paradoxosomatidae), ZooKeys 131, pp. 1-161 : 69-71

Orthomorpha pterygota Golovatch, 1998 Figs 6468

Orthomorpha pterygota Golovatch 1998: 41 (D).

Orthomorpha pterygota - Enghoff 2005: 98 (M, R); Decker 2010: 31 (R).

Holotype.

♂(ZMUC), Thailand, Krabi Prov., road between Krabi and Phuket, 10 km north of Krabi, 8°09'N, 98°50'E, lowland tropical rainforest, <200 m, 13.10.1991, leg. M. Andersen, O. Martin & N. Scharff.

Other material examined.

1 ♂ (CUMZ), Thailand, Phuket Prov., Mueang Distr., Kathu Waterfall, ca 10 m, 7°55'56"N, 98°19'23"E, forest, 25.12.2009, leg. N. Likhitrakarn.2 ♂ (CUMZ), same Distr., Panwa Cape, 8°20'11"N, 98°41'36"E, 05.11.2007, leg. C. Sutcharit.

Descriptive notes.

Length 31-35 (♂), width of midbody pro- and metazona 2.2-3.0 and 4.0-4.6 mm (♂), respectively (vs 34-37 mm in length, 2.2-3.4 and 4.0-4.7 mm in width on midbody pro- and metazona, respectively, both in ♂ and ♀, as given in the original description ( Golovatch 1998)).

Coloration of live animals (Fig. 65A) dark brown with contrasting orange paraterga and orange-brown hind parts of metaterga; coloration of alcohol material upon long-term preservation faded to basically light brown (holotype) to dark castaneous brown with contrasting pallid to light greyish paraterga, most of mid-dorsal parts of metaterga and prozona, as well as epiproct (Figs 64 & 65B-H).

Remarks.

The original description of this species was so complete and detailed ( Golovatch 1998) that no redescription seems to be necessary. Instead, we only provide new illustrations (Figs 64-68) showing the coloration, structural details and gonopod conformation of Orthomorpha pterygota , based both on the holotype and new samples.

This species occurs, so far as known, only on Phuket Island and in the adjacent Krabi Province, southern Thailand.