Aponedyopus latilobatus, Chen, Chao-Chun, Golovatch, Sergei I. & Chang, Hsueh-Wen, 2010

Chen, Chao-Chun, Golovatch, Sergei I. & Chang, Hsueh-Wen, 2010, Revision of the endemic Taiwanese millipede genus Aponedyopus Verhoeff, 1939, with descriptions of two new species (Diplopoda, Polydesmida, Paradoxosomatidae). Advances in the systematica of Diplopoda III, ZooKeys 72, pp. 1-21 : 11-14

publication ID

https://dx.doi.org/10.3897/zookeys.72.743

persistent identifier

https://treatment.plazi.org/id/10931425-F988-793F-9D1C-B5775178AAE3

treatment provided by

ZooKeys by Pensoft

scientific name

Aponedyopus latilobatus
status

sp. n.

Aponedyopus latilobatus   ZBK sp. n. Figs 32 –3946–4956– 58

Material examined:

Holotype ♂ (NSYSUB-DI 76), Taiwan (R. O. C.), Taichung County (台中縣), HePing (和平鄉), Sihyuanyakou (思源啞口), forest path no. 710, 1.5 km from entrance to path, ca 2,050-2,100 m a.s.l., 21 August 2002, leg. C. C. Chen & Y. H. Lin.

Paratypes: 3 ♀ (NSYSUB-DI 77-79), same locality, date, and collectors, together with holotype.

Diagnosis:

Apparently being the most similar to Aponedyopus similis sp. n., it differs in the texture of the tegument (mostly rugulose in Aponedyopus latilobatus sp. n.) and, especially, in certain details of gonopod structure: lobe l is neither so wide nor membranous, the terminal branches are subequal in length, and the solenomere is supplied with a far more evident terminal lobe (see also Key below).

Description:

Length 15 mm (♂, n=1) and 18 mm (♀, n =3); width of pro- and metazona 10 ca 1.8 and 2.0 (♂) or 1.9-2.0 and 2.0-2.2 mm (♀), respectively.

Coloration in alcohol entirely light brown to brown (Figs 32-35); antennae light brown, growing increasingly blackish distally, but tip pallid; pattern much clearer in ♀, much like in Aponedyopus similis sp. n.: a light brown,wide, axial stripe from anterior edge of collum to end of epiproct; paraterga and sternites contrastingly lighter brown; legs pallid to yellow; axial line wanting.

Postcollum constriction clear (♂) or faint (♀), segment 4 <3 <2 <collum = segments 5-16 <head (♂), or collum = segments 2-4 <head = segments 5-18 (♀), thereafter body gradually and gently tapering both in width and height towards telson. Antennae (Fig. 33) medium-sized (♂) to short (♀), slender, reaching behind stricture of tergite 3 dorsally (♂), or end of collum to posterior edge of segment 2 (♀). Paraterga (Figs 34 & 35) as in Aponedyopus similis sp. n., but sometimes not or nearly not delimited by a ventral sulcus (♀). Surface transversely rugulose on metaterga 2 close to paraterga, sparsely longitudinally rugulose in places on post-sulcus halves of metaterga. Pleurosternal carinae (Fig. 33) present only on segments 2 and 3. Tergal setae almost fully abraded, 3+3 retained only at anterrior edge of collum; pattern untraceable. Epiproct (Figs 36 & 37) same as in Aponedyopus similis sp. n., but tip either slightly concave or subtruncate.

Sterna sparsely setose; lamina (Fig. 39) between ♂ coxae 4 evidently emarginate and setose; ♂ segment 7 with a pair of prominent, ventral, sternal cones (= spiracles) flanking gonopod aperture. Legs short and slender, shorter than to almost as long as midbody height; tarsal brushes present from legpair 1 to anterior legs of segment 10; coxa 2 with a small apical process supporting a gonopore.

Gonopod (Figs 46-49, 56 & 57) with b more like in Aponedyopus montanus , but l especially indistinct, and distal part of solenophore (sph), albeit also deeply bifid, having both terminal branches of subequal length, as well as a far more evident terminal lobe on solenomere (sl) not crossing a simple end of sph.

Distribution:

This seems to be a very local high-montane species in central Taiwan (Map).