Trilacuna mainling Tong & Li, 2025
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publication ID |
https://doi.org/10.3897/zookeys.1229.145844 |
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publication LSID |
lsid:zoobank.org:pub:FF1C850A-247F-4935-B511-B426C7100E4A |
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DOI |
https://doi.org/10.5281/zenodo.14946339 |
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persistent identifier |
https://treatment.plazi.org/id/10C194EB-8523-5728-AB8A-6300B114E3E7 |
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treatment provided by |
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scientific name |
Trilacuna mainling Tong & Li |
| status |
sp. nov. |
Trilacuna mainling Tong & Li sp. nov.
Figs 5 A – H View Figure 5 , 6 View Figure 6 , 7 View Figure 7 , 14 A, B View Figure 14
Material examined.
Holotype China • ♂ ( SYNU -914 ); Xizang, N of Mainling Co.; 29°13.310'N, 94°13.309'E, 3050 m elev.; 13. VIII. 2013; Q. Cao leg. GoogleMaps Paratype. China • 1 ♀ ( SYNU -915 ); same data as holotype GoogleMaps .
Etymology.
The specific name is a noun in apposition taken from the type locality.
Diagnosis.
The new species is similar to T. bangla in the shape of the bulb but can be distinguished by the male epigastric region with a small wedge-shaped process (Fig. 5 D View Figure 5 , arrow) vs. lacking, but with a row of enlarged setae (Fig. 2 G View Figure 2 , arrow); the psembolus with serrated structure at the base (Fig. 6 M View Figure 6 , arrow) vs. lacking, instead of cluster of fibers (Fig. 3 I View Figure 3 ); the reticulated abdominal scutum of the female (Fig. 7 A, C, E View Figure 7 ) vs. smooth (Fig. 4 A, C, E View Figure 4 ); and the very small globular structure of the endogyne (Fig. 14 B View Figure 14 ) vs. very large (Fig. 14 F View Figure 14 ).
Description.
Male. Body: yellow, legs lighter; habitus as in Fig. 5 A – F View Figure 5 ; body length 1.59. Carapace (Fig. 5 A, E View Figure 5 ): 0.87 long, 0.72 wide; sides granulate. Eyes (Fig. 5 A, G View Figure 5 ): well developed; ALE separated from edge of carapace by one diameter. Mouthparts (Fig. 5 C, G, H View Figure 5 ): endites slender, distally not branched. Sternum (Fig. 5 C View Figure 5 ): surface reticulated. Abdomen: 0.63 long, 0.48 wide; sperm pore situated at level of anterior spiracles; apodemes present, posterior spiracles connected by groove; with small wedge-shaped process situated between anterior and posterior spiracles; epigastric region slightly elevated (Fig. 5 D, F View Figure 5 ). Palp (Fig. 6 A – N View Figure 6 ): orange; 0.68 long (0.21, 0.12, 0.11, 0.24); femur not enlarged (width / length = 0.46); bulb triangle; psembolus with several rows of serrated structure at base, psembolus proper surrounded by numerous fiber structures.
Female (paratype, SYNU -915 ). As in male except as noted. Body: habitus as in Fig. 7 A, C, E View Figure 7 ; body length 2.19. Carapace: 0.97 long, 0.79 wide; Abdomen: 1.37 long, 0.74 wide; dorsal and ventral scutum surface reticulated. Epigastric area (Figs 7 G View Figure 7 , 14 A View Figure 14 ): with recurved, strongly sclerotized arches (sar). Endogyne (Fig. 14 B View Figure 14 ): with narrow, transverse sclerite (tsc); with anterior large T-shaped sclerite (as) and posterior small globular structure (glo); transverse bars (tba) with pair of lateral apodemes (ap).
Distribution.
Known only from the type locality (Fig. 1 View Figure 1 ).
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.