Skleroprotopus yutiantianae, Chen & Zhao & Golovatch & Liu, 2024
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publication ID |
https://doi.org/ 10.3897/asp.82.e136751 |
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publication LSID |
lsid:zoobank.org:pub:927B910A-4F53-4BBA-B9A7-D60B1EF4733E |
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DOI |
https://doi.org/10.5281/zenodo.14513057 |
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persistent identifier |
https://treatment.plazi.org/id/4DB77B61-D622-521E-8BAB-F4497E245AC4 |
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treatment provided by |
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scientific name |
Skleroprotopus yutiantianae |
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sp. nov. |
3.3. 1. Skleroprotopus yutiantianae sp. nov.
Figures 3 F View Figure 3 , 4 View Figure 4
Material examined.
Holotype male ( SCAU), China, Qinghai Province, Xining City, Chengzhong District, Nanshan Park , 36°36′3.78″N 101°46′6.08″E, 2400 m, 18. VIII. 2020, Yu Tiantian leg. GoogleMaps
Diagnosis.
Differs from congeners mostly based on the following combination of characters: (1) leg 1, 6 - segmented (Fig. 4 D View Figure 4 ); (2) penis much shorter than coxae 2 (Fig. 4 F View Figure 4 ); (3) coxal process of leg 7 (Fig. 4 E View Figure 4 ) tongue-shaped, about 2 × as long as a club-shaped telopodite; (4) anterior gonopod with a very long and narrow coxal process, carrying an irregularly dentate and membranous lobe (Fig. 4 I View Figure 4 ). — In addition, this new species differs from all other species analyzed in a> 12.7 % uncorrected p - distance of the COI barcoding gene.
Etymology.
The specific epithet is honored to Dr. Yu Tiantian (余甜甜) (Kunming Institute of Zoology, Chinese Academy of Sciences), who is the collector; noun in the genitive case.
Description.
Length of holotype ca 25.0 mm, 1.6 mm in diameter, body with 53 podous + 1 apodous rings + telson. Coloration in alcohol marbled dark brownish, slightly lighter in anterior 1 / 3 body (Fig. 3 F View Figure 3 ). Antennae semi-transparent, gradually infuscate from base to end, antennomeres 5 and 6 darkest, frosted violet (Fig. 4 C View Figure 4 ). Eye patches blackish, triangular, arranged in 6 irregular rows, about 35 (left) or 43 (right) ommatidia per eye patch (Fig. 4 B View Figure 4 ). Legs pale yellow.
Head capsule (Fig. 4 B View Figure 4 ) smooth and hairless, vertex bulged, epicranial suture obviously concave. Labral margin with 2 + 2 supra-labral and 6 (7) + 6 (7) labral setae (Fig. 4 A View Figure 4 ). Antennae (Fig. 4 C View Figure 4 ) medium in length, reaching behind to middle of ring 2 when stretched dorsally. In length, antennomeres 3> 2> 4> 6 ≈ 5> 1> 7. Antennomeres 5 and 6 each with a distal corolla of sensilla basiconica. Antennomere 7 invaginated terminally, sensory cones inconspicuous. Mandibular stipes enlarged, with two nearly equal lobes (Fig. 3 F View Figure 3 ). Gnathochilarium with at least 4 setae on each lamella lingualis (ll); promentum (pr) long and diamond-shaped, swollen anteriorly (Fig. 4 A View Figure 4 ).
Collum (Fig. 3 F View Figure 3 ) with 6 lower striae laterally, but lowest stria not reaching the anterior margin. Prozona delicately alveolate, metazona laterally with 13–18 longitudinal striae (Fig. 3 F View Figure 3 ). Suture dividing pro- and metazona narrow, a regular comb. Ozopores starting with ring 6, lying anteriorly on lateral sides of metatergites.
Epiproct slightly protruding caudad, with 2 + 2 setae along posterior margin. Paraprocts convex, medially with 2 + 2 setae. Hypoproct eye-shaped, with 1 + 1 setae.
Legs (Fig. 3 F View Figure 3 ) short, about 0.7 × as long as midbody height, claw weakly curved, without modifications. Male leg-pair 1 (Fig. 4 D View Figure 4 ) hypertrophied, strongly curved anteriad, 6 - segmented, but dividing line (dl) between telopoditomeres 4 and 5 (t 4, t 5) incomplete. Both t 4 and t 5 combined longest, irregularly shaped, with a few scattered setae and short bristles medially. Coxa (cx) and telopoditomeres 1 and 2 (t 1, t 2) with some long setae. Telopoditomere 3 (t 3) broadest. Male leg-pair 2 (Fig. 4 F View Figure 4 ) reduced in size and slender; penis (pn) unpaired, shorter than coxae (cx), cylindrical, distal part with two long setae. Male leg-pair 7 (Fig. 4 E View Figure 4 ) strongly modified, with 2 - segmented telopodites, club-shaped, densely setose apically, telopoditomere 2 rather small. Coxal process (cp) strongly elongated, tongue-shaped, about 2 × as long as telopodite (te), clothed with dense long bristles.
Anterior gonopods (Fig. 4 H, I View Figure 4 ) with a very long and rather slender coxal process (cp) bearing a long row of short villi in anterior view, posteriorly carrying with an irregularly dentate membranous lobe (ml), outer margin of ml distinctly broadened and reflexed, subtriangular, distally sharp. Flagellum (f) long and slender, a little barbed. Telopodite (te) about 2 / 3 as long as cp, with long setae apically.
Posterior gonopods (Fig. 4 G View Figure 4 ) erect and thin, anterior branch slender, tapering regularly towards tip, higher than posterior branch, and both densely setose distally.
Female unknown.
Remarks.
The Nanshan Park, Xining City, Qinghai Province is nicely forested in 80 % of its area, dominated by hardwood tree species including Picea crassifolia Kom., 1923 , Juniperus przewalskii Kom., 1924 and Pinus tabuliformis Carrière, 1867 . The holotype of Skleroprotopus yutiantianae sp. nov. was found in forest litter.
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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