Glyphiulus portaliformis Zhao & Liu, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1108.85156 |
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publication LSID |
lsid:zoobank.org:pub:DB9FDD0F-5FDF-4B02-8E0B-003EAE84EC91 |
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persistent identifier |
https://treatment.plazi.org/id/5879B2B8-A5DE-46BE-8710-07E3E41BAE46 |
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taxon LSID |
lsid:zoobank.org:act:5879B2B8-A5DE-46BE-8710-07E3E41BAE46 |
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treatment provided by |
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scientific name |
Glyphiulus portaliformis Zhao & Liu |
| status |
sp. nov. |
Glyphiulus portaliformis Zhao & Liu sp. nov.
Figs 5C View Figure 5 , 14 View Figure 14 , 15 View Figure 15
Type material.
Holotype ♂ (SCAU WL40), China, Guangxi Zhuang Autonomous Region, Hechi City, Bama County, Cave Baiyan Dong, 24°03'40"N, 107°08'16"E, 400 m alt., 2015-VII-31, leg. Chen Jujian, Wang Xinhui & Tang Mingruo. Paratypes: 7 ♂, 18 ♀ (SCAU WL40), same data as the holotype.
Etymology.
To emphasise the coxosternum of the anterior gonopods being portal-shaped.
Diagnosis.
Differs from congeners of the Glyphiulus formosus -group by the epiproct showing a small caudal protrusion and the anterior gonopods being portal-shaped, combined with a foliate flagellum of the posterior gonopod. Based on molecular evidence, G. portaliformis Zhao & Liu, sp. nov. Differs from all other Glyphiulus species analysed in a> 14.4% uncorrected p-distance of the COI barcoding gene.
Description.
Length of both sexes ca. 41.0-56.0 mm, mid-body rings round in cross-section, their width and height similar, 2.2-3.0 mm. Body with 55-67 podous + 1 apodous ring + telson. Colouration brownish, legs almost transparent (Fig. 5C View Figure 5 ).
Head surface smooth. Labrum with 4 teeth anteromedially (Fig. 15A View Figure 15 ). Ocellaria blackish, with 14-17 ommatidia arranged in 2-3 irregular linear rows (Figs 14B View Figure 14 , 15B View Figure 15 ). Antennae short, slightly clavate, reaching back to ring 4; in length, antennomeres 5> 3> 2> 4> 6> 1> 7. Antennomeres 5-7 each with a distodorsal field or corolla of bacilliform sensilla (sensory bacilli). Antennomere 7 with four sensory cones (Fig. 15A View Figure 15 ). Gnathochilarium with a separate promentum, polytrichous on promentum and mentum, lamellae linguales each with 6-7 setae (Fig. 15A View Figure 15 ). Mandible not dissected.
Collum: crests complete and evident; carinotaxy formula I-III+P+M (Figs 14A, B View Figure 14 , 15B View Figure 15 ). Following metaterga strongly crested; carinotaxy formula 2/2+I/i+3/3 (Fig. 14 View Figure 14 ). Ozoporiferous tubercles very large, coniform. Prozonae delicately alveolate-areolate, fine longitudinal striations in front of stricture. Metazonae with an obvious, corrugate, carved texture (Fig. 14 View Figure 14 ). Rings 2 and 3 with long pleural flaps.
Epiproct simple, caudal edge with a central conical protrusion and dorsally with a strong central rounded tubercle (Fig. 14E View Figure 14 ). Paraprocts regularly convex, each with several irregular rows of setae. Hypoproct transversely bean-shaped, no setae visible (Fig. 14F View Figure 14 ).
Legs slender, about 1.1 times as long as mid-body height; claw with a small accessory spine at base, about 1/5 as long as claw (Fig. 15D View Figure 15 ). ♂ legs 1 very strongly reduced, represented by a sternum showing a pair of small, fused, paramedian, subunciform prongs directed forward, with about ten long setae at base; flanked by strongly separated, rudimentary, 2-segmented leg vestiges, second segment very large, stout, rod-shaped (Fig. 15F View Figure 15 ). ♂ legs 2 slightly hypertrophied, coxae large; penes small, much shorter than coxae, oblong-subtrapeziform, each with two or three strong setae distolaterally (Fig. 15C View Figure 15 ). ♂ legs 3 modified through coxae being especially slender and elongate (Fig. 15E View Figure 15 ). Both ♂ femora 6 and 7 normal, without modifications.
Anterior gonopods (Fig. 15H View Figure 15 ) very tall, with a portal-shaped coxosternum with about 16-18 microsetae near distal margin; apicomesal process of coxite subtriangular, tip small, slightly curved inwards. Telopodite very large and clavate, 1-segmented, lateral in position, slightly higher than lateral corner of coxite, with a field of nine microspinules at base and six strong setae apically.
Posterior gonopods (Figs 15I, J View Figure 15 ) compact. Coxite nearly parallelogram-shaped, with an elongated field of about 14 basolateral microspinules in frontal view and with a field of 16 median microspinules in caudal view; apical and mesal parts of coxite with dense, strong and curved setae. Lamelliform lobe membranous, with a relatively long, broad, distally foliate flagellum.
Vulvae very simple, bare, faintly emarginate medially (Fig. 15G View Figure 15 ).
Remark.
In the absence of direct troglomorphic traits, this species can only be considered as troglophilic at most.
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.