Tylopus baenzigeri Golovatch & Enghoff, 1993

Likhitrakarn, Natdanai, Golovatch, Sergei I. & Panha, Somsak, 2016, The millipede genus Tylopus Jeekel, 1968 (Diplopoda, Polydesmida, Paradoxosomatidae), with a key and descriptions of eight new species from Indochina, European Journal of Taxonomy 195, pp. 1-47 : 32-34

Tylopus baenzigeri Golovatch & Enghoff, 1993

Figs 23–26

Tylopus baenzigeri Golovatch & Enghoff, 1993: 101 , figs 50–51 (Type locality, Doi Suthep National Park).

Tylopus baenzigeri – Enghoff 2005: 99. — Likhitrakarn et al. 2010: 25; 2014a: 65.

Material examined

THAILAND: Ƌ, Royal Agricultural Station Angkhang, Fang, Chiang Mai, 19°54’05”N, 99° 2’25”E, ca 1420 m a.s.l., 12 August 2014, leg. N. Likhitrakarn ( CUMZ).

Descriptive notes

MEASUREMENTS AND COLOUR. Length 43.8 mm, width of midbody pro- and metazonae 3.51 and 5.04 mm, respectively. Coloration of live animal, as well as of alcohol material black-brown ( Fig. 23 A–G), head and venter dark to light brown, legs and antennae yellowish brown to light yellowish.

BODY. Antennae rather short ( Fig. 23B), extending behind body segment 3 (Ƌ) when stretched dorsally. In width, segment 3 <4 <5 <collum <segment 2 <6–17; thereafter body gently and gradually tapering. Collum with three transverse rows of setae: 4+4 anterior, 1+1 intermediate and 4+4 posterior; a very faint incision laterally in posterior 1/3; caudal corner of paraterga very broadly rounded, not drawn behind rear tergal margin ( Fig. 23B – C). Paraterga 2 well-developed ( Fig. 23B – C), horizontal, lateral edge with two minute incisions in anterior half, caudal corner very narrowly rounded. Paraterga 3 and 4 each nearly pointed, expanded laterally, with two minute incisions in the middle. Sterna densely setose and finely microtuberculate ( Fig. 24D); with a large, subtrapeziform, ventrally slightly concave, sternal lobe between Ƌ coxae 4 ( Fig. 23I – J). Legs rather long and slender, midbody ones ca 1.2–1.3 (Ƌ) as long as body height; Ƌ legs without tarsal brushes; Ƌ postfemora and tibiae each with an adenostyle (tubercle) on segments 8–17; Ƌ coxae, prefemora, femora and postfemora microtuberculate ventrally ( Fig. 24C – D).

Remarks

This new specimen agrees in most details with the original description ( Golovatch & Enghoff 1993), especially in gonopod structure which shows a huge spine z serrate on both sides ( Figs 24A – B, 3), and in a large body. Thus, to document its identity the new specimen has been illustrated in detail for comparative purposes ( Figs 23–25). The type locality of T. baenzigeri, Doi Suthep National Park, is located quite far away (about 120 km) from this new place.

Checklist

Table 1 presents a checklist of the known or new Tylopus species, all arranged in alphabetic order. Data on their distribution are also provided.