Bellatoiulus golovatchi gen. et, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1097.81792 |
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publication LSID |
lsid:zoobank.org:pub:18F467AF-6AC6-4412-9794-5A004A671F5B |
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persistent identifier |
https://treatment.plazi.org/id/A8A39314-2E0B-4E99-A65A-EBB595D16EF2 |
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taxon LSID |
lsid:zoobank.org:act:A8A39314-2E0B-4E99-A65A-EBB595D16EF2 |
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treatment provided by |
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scientific name |
Bellatoiulus golovatchi gen. et |
| status |
sp. nov. |
Bellatoiulus golovatchi gen. et sp. nov.
Material examined.
Holotype: ♂ (unbroken) (ZMUM): Azerbaijan, Drmbon [ Heyvalı] ca 30 km WSW of Mardakert [ Ağdərə], 800-850 m a.s.l., Quercus , Carpinus , Acer , etc. forest, litter, 1-2.VI.1987, S. Golovatch & K. Eskov leg. Paratypes: 1 ♂ (in 3 pieces, with dissected gonopods, leg-pair 2, a mid-body and an end-body leg), 1 ♀ (in 2 pieces, right vulva dissected) (NMNHS), 1 ♂ (in 2 pieces, with dissected leg-pair 2 and a mid-body leg), 1 ♀ (unbroken) (NHMD), 6 ♂♂ (4 unbroken, 2 in 2 pieces, with dissected gonopods, head, antenna, leg-pairs 1, 2, 3, 8 and a mid-body leg), 42 ♀♀ (30 unbroken, 11 broken in two or more pieces, 1 with dissected vulvae and leg-pair 2), 21 juv. (ZMUM), same collecting data as for holotype .
Non-type material:
7 ♂♂, 12 ♀♀, 2 juv. (ZMUM), Azerbaijan, Nadirkhanly [ Nadirxanlı] ca 12 km NE of Kelbajar [Kəlbəcər], 1200 m a.s.l., Fraxinus & Juglans stand, litter, 1.VI.1987, S. Golovatch & K. Eskov leg.; 2 ♂♂ (1 ♂ in 2 pieces, with dissected gonopods), 10 ♀♀, 8 juv. (ZMUM), Azerbaijan, ca 15 km WSW of Mardakert [ Ağdərə], 1100 m a.s.l., Quercus , Fagus , Acer , etc. forest, litter, 2.VI.1987, S. Golovatch & K. Eskov leg.
Cybertypes:
http://morphobank.org/permalink/?P4180. Created from the physical ♂ holotype and a ♀ paratype.
Name.
The new species honours our friend and colleague, Prof. Sergei Golovatch (Moscow, Russia), an outstanding myriapodologist and one of the collectors of the material used for the present species description.
Description.
Measurements: holotype with BRF 45+2+T, L = 12 mm, H = 0.6 mm; paratype and non-type ♂♂ with BRF 40-46+1-3+T, L = 10-12 mm, H = 0.5-0.6 mm; paratype and non-type ♀♀ with BRF 37-51+1-4+T, L = 9.5-14 mm, H = 0.5-0.7 mm.
Colouration (Fig. 1 View Figure 1 ): completely pallid, gut and defence glands partly visible by transparency (alcohol-fixed material).
Head (Figs 2A View Figure 2 , 1 View Figure 1 , 5 View Figure 5 , 8 View Figure 8 ): ommatidia absent. 2 vertigial, 4 (usually) or 5 (rarely) supralabral and 8-14 labral setae. Antennae (Fig. 2B View Figure 2 ) 1.4-1.7 times as long as head in males, and 1.3-1.4 times in females; antennomeres 2 and 5 subequal in length, somewhat longer than 3 and 4, and much longer than 6; 5 ca 1.6 times as long as broad and ca 1.5 times as broad as 2; the four apical cones relatively small; distal margins of antennomeres 5 and 6 dorsolaterally with several bacilliform sensilla basiconica, those on antennomere 5 of similar size to the apical cones, those on antennomere 6 somewhat finer. Mandibular stipites in males not expanded. Labrum tridentate. Gnathochilarium without peculiarities; proximal part of stipites non-setose, distally with three setae usual for the family, stipital palps normally developed, each bearing a group of extremely small apical sensilla; promentum small, rhomboid, separating lamellae linguales in roughly their proximal third, the latter each bearing three or four setae in a longitudinal row.
Trunk and legs: collum mostly smooth, with only two or three faint longitudinal grooves just next to posterolateral corner. Body rings (Figs 1 View Figure 1 , 2F, G View Figure 2 , 5 View Figure 5 , 8 View Figure 8 ) slightly to moderately vaulted. Prozonae generally smooth, with sparse, very short and fine, irregular striae. Metazonae with sparse, shallow longitudinal striations, most striae not crossing entire length of metazona; hind margins with a rather dense whorl of erect to somewhat slanting setae, these being 0.12-0.2 times as long as H in males, and 0.1-0.17 times in females. Ozopores (Fig. 2F View Figure 2 ) small, placed behind pro-metazonal suture at ca 1/3-2/5 of metazonal length measured from front to back. Walking legs (Figs 2D, E View Figure 2 , 7A View Figure 7 ) of moderate length: mid-body legs (Fig. 2E View Figure 2 ) 0.8-0.9 times as long as H in males and 0.7-0.8 times in females. Tarsus of mid-body legs 1.5-1.7 times as long as tibia and ca 3.5 times as long as apical claw. Legs 2 in males with accessory claw, legs 3 and following pairs without; female legs altogether without accessory claw.
Telson (Fig. 2G View Figure 2 ): Pre-anal ring sparsely covered with long setae. Epiproct short and stout (considerably surpassed by the longest paraproctal setae), straight to slightly bent ventrad, roof-like, ending bluntly without distinct hyaline tip. Hypoproct small, rounded, not protruding behind hind margins of paraprocts in both sexes; ventral surface with a pair of median setae. Paraprocts sparsely to moderately setose, with a row of shorter setae along each paraproct’s caudal margin.
Male sexual characters: leg-pair 1 (Fig. 2C View Figure 2 ) 3-segmented, typical hooks oriented fronto-mesad; tibial outgrowth slender, tarsal remnant absent. Leg-pair 2 (Fig. 2D View Figure 2 ) slightly thicker than following pairs, ventrally with crested adhesive pads (ap), one each on postfemur and tibia; next several pairs (Fig. 2E View Figure 2 ) with a small femoral pad in addition; the pads gradually diminishing towards end-body, completely disappearing in legs of the last third. Pleurotergum 7 (Fig. 3A View Figure 3 ) ventrally forming well-pronounced, shovel-like lobes originating from the border zone between pro- and metazona, protruding ventrad behind gonopods, not concealing them from lateral view. Penis (Fig. 3B View Figure 3 ) very small, non-sclerotised, set deeply above coxae 2, with a short basal part and rather slender, flattened, completely transparent apical lobes.
Gonopods (Figs 3C-E View Figure 3 , 4 View Figure 4 , 6 View Figure 6 , and g in Fig. 5C, D View Figure 5 ): in situ protruding from gonopodal sinus with their apical parts. Promere (Fig. 3C View Figure 3 , and p in Figs 4A-C View Figure 4 , 6B-E View Figure 6 ) rather stout, roughly quadrangular, insignificantly widening distally, with slightly concave mesal margin and gently sigmoid lateral margin, connected in a flat to broadly rounded apical margin; caudal face with a broad median groove (mg), and a broad, not too strongly pronounced mesal ridge (mr) bearing one or two short setae at mid-height, distally extending in a long and straight mesal process (Fig. 4D View Figure 4 , and mp in Figs 3C View Figure 3 , 4A-C View Figure 4 , 6 View Figure 6 ), with a somewhat clavate apex bearing several blunt teeth on its frontal side. Opisthomere (Figs 3D, E View Figure 3 , 4E, F View Figure 4 , and o in Figs 4A, B View Figure 4 , 6A, C-E View Figure 6 ) relatively slender, reaching nearly level to mesal process of promere; frontal face with a broad, massive, microsquamous, basofrontal lobe (bl); mesomeral process (ms) originating just distally to the lobe, being strongly flattened, somewhat twisted around its axis, distally widening, apically bearing a group of minute seti- or spiniform filaments; a well-developed club or ping-pong paddle-like lateral process (lp) with smooth surface, almost reaching level to solenomere; solenomere (s) tubular, reaching higher than mesomeral process, distally somewhat bent latero-frontad, with a deep and narrow apical fovea (fo), and an (presumably) inner canal (ic) running vertically right basally to fovea, mesal side with a sperm canal (sc), distally somewhat deviating frontad, caudal lamella absent.
Female sexual characters: leg-pairs 1 (Fig. 7A View Figure 7 ) and 2 only slightly thicker than following legs. Vulva (Figs 7B-D View Figure 7 , 9 View Figure 9 , and v in Fig. 8C, D View Figure 8 ) stout, roughly cylindrical, slightly compressed on sides; bursa (bu) mostly symmetric, median cleft (mc) positioned on top within a rather deep and narrow median field (mf); operculum (op) higher than bursa, ending with two very long, tapering, hyaline protrusions (hp); a row of four or five setae on each bursal valve and a group of several setae distally on each side of the operculum; bursal side sclerites non-setose. Receptaculum seminis composed of two nearly straight tubes: a shorter and somewhat thinner posterior one (pt), and an anterior one (at), slightly widening at bottom.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.