Orchestina hyperofrontata Tong & Yang, 2024
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publication ID |
https://dx.doi.org/10.3897/zookeys.1195.117666 |
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publication LSID |
lsid:zoobank.org:pub:76C90A02-9283-4B45-A007-D206459A4A1A |
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persistent identifier |
https://treatment.plazi.org/id/C9704B06-8A4A-4647-9EF2-ED532C9D2271 |
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taxon LSID |
lsid:zoobank.org:act:C9704B06-8A4A-4647-9EF2-ED532C9D2271 |
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treatment provided by |
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scientific name |
Orchestina hyperofrontata Tong & Yang |
| status |
sp. nov. |
Orchestina hyperofrontata Tong & Yang sp. nov.
Figs 4 View Figure 4 , 5 View Figure 5
Type material.
Holotype ♂ (SYNU-762): China, Yunnan Prov., Dali Bai Autonomous Pref., Dali City, Cangshan Mt., Jishejing, pitfall trapping in forest, 25°40′29"N, 100°06′36"E, 2600 m, Z. Yang leg., 15/11/2008; Paratype: 1 ♂ (SYNU-763), Cangshan Mt., post-fire forest in 1999, pitfall trapping, 25°38′30"N, 100°08′04"E, S. Huang & Y. Zhang leg., 25/4/2009.
Diagnosis.
The new species can be distinguished from all other congeneric species by the strongly elevated clypeus (Fig. 4A, B, E, F View Figure 4 ) and the prong on the distal part of the chelicerae (Fig. 5F View Figure 5 ), vs. lacking in congeners.
Description.
Male (holotype). Body: habitus as in Fig. 4A, C, E View Figure 4 ; body length 1.31. Carapace (Fig. 4B, E View Figure 4 ): 0.74 long, 0.61 wide; yellow, oval in dorsal view; pars cephalica strongly sloped in lateral view, with rounded posterolateral corners. Eyes (Fig. 4B View Figure 4 ): well developed, nearly equal-sized; posterior eye row straight from above; ALE far away from PME. Clypeus (Fig. 4B, E, F View Figure 4 ): strongly elevated, curved downwards in front view, sloping forward in lateral view, dorso-apically with hum elevating beyond eyes and provided with dense group of pores. Sternum (Fig. 4D View Figure 4 ): with brown patches, anteriorly with a thin median sclerotized bar connected to the labium base (Y-shaped pattern in Fig. 5D View Figure 5 ). Mouthparts (Figs 4D View Figure 4 , 5D-H View Figure 5 ): chelicerae basally with small conical boss and distally with well-developed prong partially covering base of fang; labium rounded, lateral and basal margins sclerotized, anterior margin not indented at middle; endites unsclerotized, without serrula. Abdomen (Fig. 4A, C, E View Figure 4 ): 0.57 long; with gray net-shaped pattern; pedicel tube short, unmodified. Palp (Fig. 5A-C View Figure 5 ): tibia enlarged, length/width ratio = 1.65, about 2 times as wide as femur; bulb globose, about 1.5 times as wide as palpal tibia, seminal duct slightly curved and partly visible through cuticle; psembolus about as long as 1/2 bulb, gradually narrowed.
Female. Unknown.
Affinities.
The new species O. hyperofrontata sp. nov. is similar to O. utahana Chamberlin & Ivie, 1935 and O. obscura Chamberlin & Ivie, 1942 from the Nearctic in the general shape of the male palp and the presence of prongs on cheliceral promargin (Fig. 5A-C, F View Figure 5 ; Izquierdo and Ramírez 2017: figs 5B, 15A-C, G-I). Meanwhile, the new species is also similar to O. kasuku Henrard & Jocqué, 2012 (from West Africa) in the eye pattern (ALE and PLE not touching PME), the endites without serrula, and the shape of the bulb (Figs 4B View Figure 4 , 5A-D View Figure 5 ; Henrard and Jocqué 2012: figs 378-416). It is reasonable to place the new species O. hyperofrontata sp. nov. in the macrofoliata -subgroup of the macrofoliata -group of Henrard and Jocqué (2012).
Etymology.
The specific name is derived from the Greek, hypero, meaning beyond, combined with frons, referring to the strongly elevated clypeus.
Distribution.
Known only from the type locality, Yunnan Province, China.
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.