A revision of the Thyropygus allevatus group. Part 1: the T. opinatus subgroup (Diplopoda: Spirostreptida: Harpagophoridae) Author Pimvichai, Piyatida Author Enghoff, Henrik Author Panha, Somsak text Zootaxa 2009 2016 17 50 journal article 10.5281/zenodo.185971 1db39382-b4f0-46fa-ae08-dd5e57e0e26b 1175-5326 185971 Thyropygus loxia n. sp. ( Figs. 17 A–D, 19D) Material: HOLOTYPE male THAILAND , Suratthani Province, Thachana district, Tam-Yai Temple, 9° 33ˏ 31˝ N, 99° 10ˏ 26˝ E. 11 October 2008 . H. Enghoff, S. Panha, P. Pimvichai and members of Animal Systematics Research Unit leg., ( CUMZ ). – Paratypes : 1 female and 2 sub-adult males, same data as holotype ( CUMZ ). Etymology: The name refers to the overlapping lateral processes of the gonopod anterior coxal folds, reminiscent of the bill in the bird genus Loxia (crossbills). Diagnosis: A species of the opinatus subgroup. Spatulate lobe ( sl ) at the apical part of telopodite rounded, spoon-like. Similar in this respect to T. inflexus , T. bearti , T. chelatus , T. cristagalli and T. brachyacanthus . Differs from all other species of the T. opinatus subgroup by having a longitudinal lateral crest ( Fig 17 C, arrow) on the anterior coxal fold ( ac ); by having the tip of the lateral process of anterior coxal fold ( alp ) crossing over with opposite tip, and by having the median process of posterior coxal fold ( amp ) very small. Description: Adult male with 69 podous rings, no apodous rings. Length ca. 10 cm , width ca. 5.5 mm . Adult female with 58 podous rings, no apodous rings. Length ca. 9 cm , width ca. 6.3 mm . Overall color of living animal ( Fig. 19 D) brown. Antennae and legs brownish orange. Gonopods ( Figs. 17 A–E): Anterior coxal fold ( ac ) ( Figs. 17 A, C) with a lateral longitudinal crest ( Fig. 17 C, arrow); lateral process ( alp ) slender, regularly curved, tip crossing over with tip of opposite side, the two together forming a circle; mesal process ( amp ) very small, hump-like. Posterior coxal fold ( pc ) ( Fig. 17 B) basally with moderately high lateral paracoxites ( px ), distally with two processes: mesal process ( pmp ) curving caudad; lateral process ( plp ) digitiform, directed distad. Telopodite ( Figs. 16 D–E) leaving coxite between pmp and plp ; femoral spine ( fe ) very long, curved, in situ resting curving close to pmp ; telopodite distally to fe with a small round lobe ( lo ) projecting distolaterad; tibial spine ( ti ) very long, curving in horizontal plane under fe , in situ resting close to mesal part of fe ; spatulate lobe ( sl ) basally slender, distally broadly expanded, rounded, spoon-like; palette ( pa ) simple, gutter-like, distally with about eight brownish blepharochaetae ( bp ). Distribution ( Fig. 20 ): Known only from the type locality.