Julus khostensis Evsyukov & Golovatch & Reip 2018, sp. n.
Creators: name: Evsyukov, Aleksandr
name: Golovatch, Sergei
name: Reip, Hans S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Julida
Julidae
Julus
Julus khostensis

description: Julus khostensis sp. n.
Figs 1H, 2I, 3T, 7D, 13D–E, 15H, 16I, Map 2
Material examined. Holotype male (ZMUM), Russia, Krasnodar Prov., Khosta, Taxus and Buxus grove, Cave Tisovaya I, 27.IX.1985, leg. N. Myuge.
Diagnosis. The promere is similar to that in J. kubanus, but the processes on male leg-pair 2 resemble those of J. lindholmi and J. jedryczkowskii. Differs clearly from all congeners by the structure of the flagellum on the promere and the conformation of the opisthomere. Coxa (cx) of male leg-pair 1 with a large lateral outgrowth (Fig. 3T). Male leg-pair 2 (Fig. 7D) with two pairs of coxal processes. Gonopodal promere (pr) narrow, with a thin lamella (la) (Fig. 13D). Each flagellum (fl) with a lamina in apical part. Mesomere (ms) rounded, opisthomere (op) bifurcate (Fig. 13E). Striations on metazonae regular and parallel to one another (Fig. 16I).
Derivatio nominis. To emphasize Khosta, Greater Sochi, a city near the terra typica; adjective.
Description. Length 29 mm, width 1.8 mm. Body segment formula 45+1+T. Body marbled greyish, venter lighter; antennae and anal valves greyish brown; legs yellow; eyes black.
MAP 2. Distribution of Julus species: J. kubanus Verhoeff, 1921 (green circle), J. subalpinus Lohmander, 1936 (red square), J. dagestanus sp. n. (blue triangle), J. khostensis sp. n. (purple star).
Eye patches subtriangular, each composed of ca 40 ocelli. Epicranial setae 1+1, supralabral setae 2+2, labral setae 10+10. Genae unmodified. Antennae short and slender, in situ reaching back to body segment 3. Antennomeres 5 and 6 each with a distal corolla of sensory bacilliform sensilla (Fig. 1H).
Lamellae linguales bare (artifact or abnormality?). A paramedian pair of pronounced swellings with a row of ca 12 setae per swelling parabasally, below mentum (Fig. 2I).
Body subcylindrical and slender. Suture dividing pro- and metazonae distinctly constricting both. Prozonae smooth, without striae. Metazonae with striations reaching the hind margin, ca 10 striae per about dorsal quarter of metazonital surface, i.e. between axial line and ozopore. Striae on metazonae regular and parallel to one another (Fig. 16I). A whorl of sparse, thin, short setae at hind edge of metazonae, setae gradually growing denser and somewhat longer towards telson. Telson with sparse long setae on epiproct, the latter carrying a small apical clawshaped projection directed caudad. Anal valves convex, densely setose.
MALE. Pregonopodal legs more incrassate than postgonopodal ones. Segments 6 and 7 wider than others. Ventral edge of segment 7 with small curved lamellae bordering the gonopodal aperture (Fig. 15H). Suture between coxa (cx) and a 1-segmented telopodite remnant (te) well-developed; cx with a large lateral outgrowth; te with a group of thin setae (Fig. 3T). Leg-pair 2 (Fig. 7D) with two pairs of coxal processes. Anterolateral process (alp) relatively long and slender. Main one (mp) short and slender.
All three parts of each gonopod (Fig. 13E) forming a tight block. Promere (pr) longer than opisthomere (op), flagella (fl) well-developed; fl with a lamina in apical part; pr narrow, with a thin lamella (la) (Fig. 13D); mesomere (ms) rounded; op and lateral outgrowth (lo) pointed at apex (Fig. 13E).
FEMALE. Unknown.
description: Published as part of Evsyukov, Aleksandr, Golovatch, Sergei & Reip, Hans S., 2018, The millipede genus Julus Linnaeus, 1758 in the Caucasus (Diplopoda: Julida: Julidae), pp. 89-117 in Zootaxa 4461 (1) on pages 112-114, DOI: 10.11646/zootaxa.4461.1.7, http://zenodo.org/record/1459872