Thyropygus cimi, 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 : 14-16

Thyropygus cimi sp. nov.

urn:lsid:zoobank.org:act:0252646C-AD4E-4B8B-8A7C-AEEA80DD4A72

Fig. 2 A–E

Diagnosis

A species of the opinatus subgroup. Lateral process of anterior coxal fold (alp) regularly curved, basally broad, gradually tapering towards end and ending in sharp point, with a lateral crest near tip. Similar in this respect to T. bifurcus . Differs from this species by having the mesal process of anterior coxal fold (amp) straight, directed distad, by having the mesal process of posterior coxal fold (pmp) slender, directed anteriad, and by having only one femoral spine (fe).

Etymology

This species is named after the organization “ Centre International de Myriapodologie – CIM” (www. myriapodology.org) in recognition of its immense importance for inspiring and supporting research on myriapods.

Material examined

Holotype

THAILAND: ³, Nakhonsrithammarat Province , Lanska District, Namwang Srithammasokrach, 8°20'25" N, 99°49'42" E, 16 May 2010, leg. S. Panha, P. Pimvichai and members of the Animal Systematics Research Unit ( CUMZ-D00086 ).

Paratypes

THAILAND: 2 ³³, 1 ♀, same data as holotype ( CUMZ-D 00096); 1 ³, same data as holotype ( ZMUC).

Description

Adult males with 65–68 podous rings, no apodous rings. Length 13–16 cm, width 7.6–8.3 mm. Adult female with 65 podous rings, no apodous rings. Length 13 cm, width 7.4 mm. Colour in life unknown;

preserved specimens with head, antennae, prozona, middorsal metazona and legs brown; metazona, epiproct, paraprocts and hypoproct dark brown.

GONOPODS ( Fig. 2 A–E). Anterior coxal fold (ac; Fig. 2A ): lateral process (alp) regularly curved, basally broad, gradually tapering towards end and ending in sharp point, with lateral crest near tip ( Fig. 2C , arrow); mesal process (amp) slightly shorter than alp, straight, directed distad. Posterior coxal fold (pc; Fig. 2B ) basally with moderately high lateral paracoxites (px), distally truncate, forming shelf for accommodation of telopodite, mesal process (pmp) slender, directed anteriad. Telopodite ( Fig. 2 D–E) leaving coxite over shelf of posterior coxal fold; femoral spine (fe) very long, slender, curving downward, in situ resting between alp and amp; tibial spine (ti) long, slender, curving in horizontal plane, its tip in situ resting close to base of fe; apical part: lamellar lobe (ll) broadly expanded, bent down; palette (pa) simple, gutter-like, with longitudinal rounded crest (cr) at middle; distally with about ten brownish blepharochaetae (bp).

DNA barcode

The GenBank accession number of the barcode of the holotype is KU306519 (voucher code CUMZ-D00086).

Distribution ( Fig. 12 )

Known only from the type locality.

Remarks

Coexisting with the smaller T. forceps sp. nov.

Figures

Fig. 2. Thyropygus cimi sp. nov., from Namwang Srithammasokrach, holotype (CUMZ-D00086), ³, gonopods. A. Anterior view, left telopodite removed. B. Posterior view, left telopodite removed. C. Lateral view. D. Left telopodite, posterior-mesal view. E. Left telopodite, anterior-lateral view.

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