Leucogeorgia redivivoides, Antić & Reip, 2020
publication ID |
https://doi.org/ 10.5852/ejt.2020.713 |
publication LSID |
lsid:zoobank.org:pub:A6CB58F5-1ECC-47F0-AA07-798844AF80A7 |
DOI |
https://doi.org/10.5281/zenodo.4335804 |
persistent identifier |
https://treatment.plazi.org/id/BCBC9EBF-506F-4EF2-A3A4-3FABE0756DED |
taxon LSID |
lsid:zoobank.org:act:BCBC9EBF-506F-4EF2-A3A4-3FABE0756DED |
treatment provided by |
Valdenar |
scientific name |
Leucogeorgia redivivoides |
status |
sp. nov. |
Leucogeorgia redivivoides View in CoL sp. nov.
urn:lsid:zoobank.org:act:BCBC9EBF-506F-4EF2-A3A4-3FABE0756DED
Figs 44–46 View Fig View Fig View Fig , 56–57 View Fig View Fig
Diagnosis
This species belongs to the group of Leucogeorgia spp. with modified mouthparts and teeth on the mesomeral claw (vs teeth absent from L. longipes ). Leucogeorgia redivivoides sp. nov. differs from L. mystax sp. nov., L. profunda sp. nov. and L. turbanovi sp. nov. by having a mesomeral claw that does not directly continue with the margin of the lamella, but with a clear connection on the mesal side (vs mesomeral claw continues directly with the margin of the lamella, both parts being fully coalesced in L. mystax sp. nov., L. profunda sp. nov. and L. turbanovi sp. nov.). Leucogeorgia redivivoides sp. nov. differs from L. caudata sp. nov. by having a more slender mesomeral claw and the absence of a very long and sharp process on the epiproct with a hyaline tip (vs a more robust mesomeral claw and the presence of a long and sharp process with a hyaline tip in L. caudata sp. nov.). Leucogeorgia redivivoides sp. nov. differs from the most similar species, L. rediviva sp. nov., by having a flattened and centrally slightly serrate mesomeral lamella (vs a more smooth and high central part of the mesomeral lamella in the form of a lobe in L. rediviva ), a subrhomboid hypoproct (vs lanceolate in L. rediviva ), a low, more subquadrangular ventral margin of male body ring 7, with a right posterior angle (vs a well-developed and rounded ventral margin of body ring 7 in L. rediviva ) and a stocky body with 28–35 podous rings in males (vs somewhat elongate, with 38–47 podous rings in males of L. rediviva ).
Etymology
The species name is a combination of the name ʻ rediviva ʼ and the Ancient Greek suffix ʻ- oides ʼ, referring to the species’ particularly strong resemblance to Leucogeorgia rediviva . Adjective.
Material examined
Holotype
ABKHAZIA – Gulripsh District • ♂; Tsebeldinsky karst Massif , near Amtkel village, Nizhnyaya Shakuranskaya Cave , 700 m from entrance; 43.03° N, 41.33° E; 16 Sep. 2014; I.S. Turbanov leg.; ZMUM.
GoogleMapsParatypes
ABKHAZIA – Gulripsh District • 2 ♂♂, 3 ♀♀, 3 juvs; same collection data as for holotype; ZMUM GoogleMaps • 1 ♂, 1 ♀; same collection data as for holotype; IZB GoogleMaps • 1 ♂, 1 ♀; same collection data as for holotype; SMNG GoogleMaps .
Description
SIZE AND NUMBER OF BODY RINGS. Holotype male 24 mm long, vertical diameter of largest body ring 1.95 mm, body with 34 podous rings + 1 apodous ring + telson. Paratype males 16.5–24 mm long, vertical
diameter of largest body ring 1.7–1.95 mm, body with 28–35 podous rings + 0–1 apodous ring + telson. Paratype females 25.5–26.5 mm long, vertical diameter of largest body ring 2.3 mm, body with 34–39 podous rings + 0–1 apodous ring + telson.
COLOUR ( Fig. 44 View Fig ). In alcohol brownish, with dark brown rings on prozonae.
HEAD ( Figs 44B View Fig , 45C View Fig ). Without ommatidia. Frontal setae absent. Labrum without labral teeth, with 2+2, 3+2 or 4+3 supralabral setae and 26–32 labral setae. Gnathochilarium (paratype males) with a triangular promentum; lamellae linguales in one paratype male with 4+4 proximal setae, in another paratype male with 3+2 proximal, 1+0 medial and 1+1 distal setae (5+3 setae); stipites in one paratype male with 1+2 long distolateral setae, in another paratype male with 3+3 distolateral setae; no other setae. Antennae 3.7 mm long in holotype male, their length ca 190% of vertical diameter of largest body ring. Lengths of antennomeres I–VIII (in mm): 0.15 (I), 0.79 (II), 0.76 (III), 0.73 (IV), 0.72 (V), 0.38 (VI), 0.14 (VII) and 0.03 (VIII). Length/width ratio of antennomeres I–VII: 0.7 (I), 3.6 (II), 3.4 (III), 3.8 (IV), 3.8 (V), 1.8 (VI) and 0.9 (VII). Length of antennae in other males 180–190% of vertical diameter of largest body rings. Antennomeres V and VI each with a terminal corolla of large sensilla basiconica bacilliformia; antennomere VII with a terminal corolla of small sensilla basiconica bacilliformia.
BODY RINGS ( Fig. 44E View Fig ). Ventral and ventrolateral sides of metazonal areas with longitudinal striations. Dorsal side with poorly visible striations. Length of midbody setae ca 8% of vertical diameter of rings.
TELSON ( Fig. 44D View Fig , F–G). Epiproct variable, with a short to somewhat longer, blunt preanal process. Paraprocts rounded, setose, mesal edges slightly bulging. Hypoproct subrhomboid, covered with ca eight long setae in paratype male.
LEGS IN MALES. First pair of legs modified, hook-shaped ( Figs 45 View Fig A–B, 46E), with three podomeres; coxa with one seta; prefemur with 4–5 setae; femora, postfemora and tibiotarsi coalesced; femur with four setae; postfemur with one seta. Tibiotarsal part with a small distal lobe. Tip slightly tuberculate. Postfemoral and tibial ventral pads poorly developed on pregonopodal legs, then gradually disappearing on postgonopodal legs.
VENTRAL MARGIN OF MALE BODY RING 7 ( Fig. 44C View Fig ). Low, rounded, more subquadrangular in lateral view, with a right posterior angle.
PENES ( Fig. 46F View Fig ). Elongate, apically with two long subtriangular lobes.
GONOPODS ( Figs 45D View Fig , 46 View Fig A–D). Promere (p) long and slender, with a flagellum (f); apical part spatulate, with denticulate margins; basal half with two developed ridges. Mesomere (m) with a well-developed and denticulate mesomeral claw (mc); mesomeral lamella (ml) gradually decreasing in height posteriad, distal margin serrate, posterior part finely fimbriate. Opisthomere (o) bipartite. Anterior branch of o with a solenomere (s) with a medium-sized tip, and a well-developed and fimbriate velum (v). Posterior branch of o in form of a shield-like protective lamella (pl). Mesomere and opisthomere connected basally with an accessory membrane (am).
Distribution
Known only from its type locality ( Fig. 57 View Fig , orange square).
Remarks
Like L. rediviva , this new species is characterized by a variable length of the process on the telson, which can be longer or shorter.
As it has been found 700 m from the entrance of the cave together with one female of another species of Leucogeorgia (probably L. abchasica ) without modified mouthparts, these two species are probably syntopic.
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.
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Oncoiulinae |
Tribe |
Leucogeorgiini |
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