Annamina attemsi, Golovatch, Sergei I., Geoffroy, Jean-Jacques & Akkari, Nesrine, 2017

Golovatch, Sergei I., Geoffroy, Jean-Jacques & Akkari, Nesrine, 2017, Revision of the Vietnamese millipede genus Annamina Attems, 1937, with descriptions of three new species (Diplopoda, Polydesmida, Paradoxosomatidae), ZooKeys 669, pp. 1-18 : 1-3

Annamina attemsi sp. n. Figs 5, 6, 7

Type material.

Holotype ♂, NHMW 8934, Tourane (= Danang), Lien Chieu, Dawydoff C. leg., 09.1931, Dawydoff/Attems 1936 don. Paratype: 1 ♂, NHMW 8935, with one gonopod dissected, same data as holotype.

Diagnosis.

Differs from other species of the genus primarily by an unusually slender telopodite of the gonopod which is only supplied with an apical process. See also Key below.

Name.

Honours the famous Austrian myriapodologist Carl Attems (1868-1952), one of the most prominent taxonomists of Diplopoda of his time.

Description.

Measurements (mm): Body length ca 18.7 (holotype) or 21.6 (♂ paratype), width of midbody prozonae 1.2 (holotype) or 1.3 (♂ paratype), width of midbody metazonae 1.8 (holotype) or 2.0 (♂ paratype).

General coloration after many years of preservation in alcohol light, almost whitish to yellowish brown, sides, telson, legs and ventral parts pale whitish (Fig. 5). Clypeo labral region setose, setae becoming scattered between antennae (ca 3 pairs), vertigial region with 2+2 setae; epicranial suture thin, superficial.

All other characters (see Figs 5-7) as in A. xanthoptera , except as follows.

Caudal corner of paraterga dentiform and acute-angled starting with segment 4, drawn behind rear tergal margin starting with segment 11 (♂); a second lateral denticle on paraterga completely absent from segments 18 and 19. Transverse sulci fully developed on metaterga 5-17, deep, beaded at bottom and almost reaching the bases of paraterga, weaker on segment 18, absent from 19th.

Gonopods (Figs 6, 7) somewhat disjunct, especially intricate in structure; coxite (cx) moderately setose distoventrally; telopodite much more slender than in A. xanthoptera ; femorite (fe) much narrower, distally especially so, showing an inconspicuous and less strongly granulated mesal lobe (ml), as well as a hypertrophied, hyaline, irregularly rounded, ventral lobe (vl) folded mesad; seminal groove running laterad along dorsal part of fe, passing distally onto a short flagelliform solenomere (sl); the latter subtended distally by a small, apically bilobulate, ventral tooth (t) (= solenophore) arising from about midway of a long, pointed, spiniform, apical process (a), this being equipped with a minute, subapical, hyaline ridge (r); lateral process (lp) rudimentary, lying a little distal to postfemoral sulcus (su), with a minute spike on top, placed just at base of a; no mesal process whatsoever.