Glyphiulus conuliformis 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/7FCC4E95-5E67-450E-8003-D5F41C71E5B1 |
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taxon LSID |
lsid:zoobank.org:act:7FCC4E95-5E67-450E-8003-D5F41C71E5B1 |
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treatment provided by |
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scientific name |
Glyphiulus conuliformis Zhao & Liu |
| status |
sp. nov. |
Glyphiulus conuliformis Zhao & Liu sp. nov.
Figs 5E View Figure 5 , 8 View Figure 8 , 9 View Figure 9
Type material.
Holotype ♂ (SCAU G24), China, Guangdong Province, Yangjiang City, Yangchun, Cave Yanzi Dong, 22°5'N, 111°36'50"E, 400 m alt., 2016-X-29, leg. Tian Mingyi, Chen Mengzhen & Wang Dianmei. Paratypes: 2 ♂, 26 ♀ (SCAU G24), same data as the holotype.
Etymology.
To emphasise the metatergal anterior tubercles being very sharp and coniform.
Diagnosis.
Differs from congeners of the Glyphiulus formosus -group by the conical shape of the anterior tubercles of metaterga and by the first segment of the telopodite being significantly enlarged in ♂ legs 1, combined with the anterior gonopod process being slender, finger-shaped and curved inwards distally. Based on molecular evidence, G. conuliformis Zhao & Liu, sp. nov. differs from all other Glyphiulus species analysed in a> 17.0% uncorrected p-distance of the COI barcoding gene.
Description.
Length ca. 32.5-37.0 (♂) or 47.0-58.0 mm (♀), mid-body rings round in cross-section, their width and height similar, 1.7-2.0 mm (♂) or 2.2-3.0 mm (♀). Body with 48-53 (♂) or 57-67 (♀) podous + 2-4 apodous rings + telson. Colouration dark brownish, head and legs yellowish (Fig. 5E View Figure 5 ).
Head surface smooth. Labrum with four teeth anteromedially (Fig. 9C View Figure 9 ). Ocellaria blackish, with 12-22 ommatidia arranged in 2-3 irregular linear rows (Fig. 9A View Figure 9 ). Antennae slender, slightly clavate, reaching back to middle of rings 2 and 3; 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. 9B View Figure 9 ). Gnathochilarium with a separate promentum, polytrichous on promentum and mentum, lamellae linguales each with 6-7 setae (Fig. 9C View Figure 9 ). Mandible not dissected.
Collum: crests complete and evident; carinotaxy formula I-III+P+M (Figs 8A, B View Figure 8 ). Following metaterga strongly crested, anterior tubercles very sharp and coniform; carinotaxy formula 2/2+I/i+3/3 (Fig. 8 View Figure 8 ). Ozoporiferous tubercles very large, coniform (Figs 8C, D View Figure 8 ). Tegument delicately alveolate-areolate, fine longitudinal striations in front of stricture. Rings 2 and 3 with long pleural flaps.
Epiproct simple, caudal edge with a very low central protrusion, dorsally with an obvious sharp tubercle (Fig. 8E View Figure 8 ). Paraprocts regularly convex, each with several irregular rows of setae (Fig. 8F View Figure 8 ). Hypoproct transversely bean-shaped, with 3+3 small setae.
Legs slender, about 1.3 times as long as mid-body height; claw with a small accessory spine at base, about 1/6 as long as claw (Fig. 9D View Figure 9 ). ♂ legs 1 very strongly reduced, represented by a sternum showing a pair of small, unfused, paramedian, subunciform prongs directed forward, with about 4-5+4-5 long setae at base; flanked by strongly separated, rudimentary, 2-segmented, asymmetric leg vestiges, first segment significantly enlarged (Fig. 9F View Figure 9 ). ♂ legs 2 slightly hypertrophied, coxae large; penes rather small, much shorter than coxae, oblong-subtrapeziform, each with 1 or 2 strong setae distolaterally (Fig. 9H View Figure 9 ). ♂ legs 3 modified through coxae being especially slender and elongate (Fig. 9E View Figure 9 ). ♂ femora 6 and 7 normal, without modifications.
Anterior gonopods (Fig. 9I View Figure 9 ) with a broad and plate-shaped coxosternum supplied with about 14-16 microsetae near distal margin; apicomesal process of coxite high, slender and digitiform, curved inwards distally. Telopodite very large and stout, coiled, 1-segmented, lateral in position, almost parallel to lateral corner of coxite, with a field of 8-16 microspinules at base and five strong setae apically.
Posterior gonopods (Figs 9J, K View Figure 9 ) compact. Coxite subtrapezoid, with a longitudinal field of 22-24 basolateral microspinules in frontal view and a slanted field of 32-36 median microspinules in caudal view; apical and mesal parts of coxite with dense, strong and curved setae. Lamelliform lobe membranous, with a rather short and broad flagellum.
Vulvae very simple, bare, M-shaped (Fig. 9G View Figure 9 ).
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.