Thyropygus sutchariti, Pimvichai & Enghoff & Panha & Backeljau, 2016

Pimvichai, Piyatida, Enghoff, Henrik, Panha, Somsak & Backeljau, Thierry, 2016, A revision of the Thyropygus allevatus group. Part V: Nine new species of the extended opinatus subgroup, based on morphological and DNA sequence data (Diplopoda: Spirostreptida: Harpagophoridae), European Journal of Taxonomy 199, pp. 1-37 : 25-27

Thyropygus sutchariti sp. nov.

urn:lsid:zoobank.org:act:6804DF2C-7787-46FE-9185-2E5C40AF5ED3

Fig. 8 A–D

Diagnosis

A species of the opinatus subgroup. Mesal process of anterior coxal fold (amp) directed slightly obliquely disto-mesad, tip overlapping tip of opposite amp. Similar in this respect to T. chelatus . Differs from this species by having amp as long as alp and by having the lateral process of the posterior coxal fold (plp) as a massive, broad lobe.

Etymology

The species is named in honour of Chirasak Sutcharit in recognition of his devotion to collecting millipedes.

Material examined

Holotype THAILAND: ♂, Phetchaburi Province, Kaeng Krachan District, Kaeng Krachan , 12°54'07" N, 99°35'56" E, 14 May 2012, leg. C. Sutcharit and members of the Animal Systematics Research Unit ( CUMZ-D00090 ).

Paratypes THAILAND: 2 ♂♂, 2 ♀♀, 1 subadult ♀, same data as holotype ( CUMZ-D00098 ); 1 ♂, same data as holotype ( ZMUC).

Description

Adult males with 63–65 podous rings, no apodous rings. Length 10–11 cm, width 5.4–5.7 mm. Adult females with 61–63 podous rings, no apodous rings. Length 12–13 cm, width 6.7–6.9 mm. Colour in life unknown; preserved specimens with head, antennae, prozona, legs, epiproct, paraprocts and hypoproct brown; metazona reddish brown.

GONOPODS ( Fig. 8 A–D). Anterior coxal fold (ac; Fig. 8A ): lateral process (alp) slender, regularly curved; mesal process (amp) as long as alp, directed slightly obliquely disto-mesad, tip overlapping tip of opposite amp. Posterior coxal fold (pc; Fig. 8B ) basally with moderately high lateral paracoxites (px), distally with two processes: mesal process (pmp) a rounded lobe; lateral process (plp) a massive, broad lobe, projecting laterad. Telopodite ( Fig. 8 C–D) leaving coxite between pmp and plp; femoral spine (fe) long, curved downward; telopodite distally to fe with large, round lobe (lo) projecting distolaterally; tibial spine (ti) very long, curving in horizontal plane, tip close to basal part of lo; spatulate lobe (sl) broad, rounded; palette (pa) simple, gutter-like, distally with about ten brownish blepharochaetae (bp).

DNA barcode

The GenBank accession number of the barcode of the holotype is KU306524 (voucher code CUMZ-D00090).

Distribution ( Fig. 12 )

Known only from the type locality.

Figures

Fig. 8. Thyropygus sutchariti sp. nov., from Kaeng Krachan, holotype (CUMZ-D00090), ♂, gonopods. A. Anterior view, left telopodite removed. B. Posterior view, left telopodite removed. C. Left telopodite, posterior-mesal view. D. Left telopodite, anterior-lateral view.

Fig. 12. Known distribution of the species of the T. opinatus subgroup.