Bryaxis nemorosus Choi, Park, Lee & Park, 2023
publication ID |
https://dx.doi.org/10.3897/zookeys.1182.97346 |
publication LSID |
lsid:zoobank.org:pub:86F5AC45-D35E-4DDF-AB04-2BCBDEEE8407 |
persistent identifier |
https://treatment.plazi.org/id/812B1845-BAEB-4E11-A8BD-7F51B922433F |
taxon LSID |
lsid:zoobank.org:act:812B1845-BAEB-4E11-A8BD-7F51B922433F |
treatment provided by |
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scientific name |
Bryaxis nemorosus Choi, Park, Lee & Park |
status |
sp. nov. |
Bryaxis nemorosus Choi, Park, Lee & Park sp. nov.
Figs 8 View Figure 8 , 9B, D, F View Figure 9
Type materials
(N = 5, 4 ♂♂, 1 ♀). Holotype male. "Korea: Jeonnam Prov. Mt. Doksil, Gageo island. Gageodo-gil, Heuksan-myeon, Sinan-gun, 13 Jul 2021, 34°05'06.1"N, 125°06'17.4"E, 468 m, sifting leaf & soil litter, J.-W. Seo" (NIBR). Paratype. 1♂ (CBNUIC, slide mounted). "Korea: Jeonnam Prov. Mt. Doksil, Gageo island. Gageodo-gil, Heuksan-myeon, Sinan-gun, 13 Jul 2021, 34°05'06.1"N, 125°06'17.4"E, 468 m, sifting leaf & soil litter, J.-W. Seo". 1♂ (CBNUIC, dried). "Korea: Jeonnam Prov. Mt. Doksil, Gageo island. Gageodo-gil, Heuksan-myeon, Sinan-gun, 8 Jul 2020, 34°05'35.0"N, 125°06'25.0"E, 590 m, sifting leaf & soil litter, T.-Y. Jang". 1♂ (CBNUIC, dried). "Korea: Jeonnam Prov. Mt. Doksil, Gageo island. Gageodo-gil, Heuksan-myeon, Sinan-gun, 8 Jul 2020, 34°04'40.0"N, 125°06'23.0"E, 540 m, sifting leaf & soil litter, U.-J. Byeon, T.-Y. Jang". 1♀ (CBNUIC, dried). "Korea: Jeonnam Prov. Mt. Doksil, Gageo island. Gageodo-gil, Heuksan-myeon, Sinan-gun, 7 Jul 2020, 34°04'34.7"N, 125°06'28.8"E, 534 m, sifting leaf & soil litter, T.-Y. Jang".
Diagnosis.
Elongated head with small eyes situated on mid-length of head (Fig. 8E View Figure 8 , arrow).
Description.
Body reddish brown, antennae, maxillary palpi, legs slightly lighter than body, length 1.57-1.58 mm, maximum width 0.61-0.67 mm (Fig. 8A-D View Figure 8 ). Setae on body yellowish. Head 1.15 times as long as wide (Fig. 8E View Figure 8 ). Frons with U-shaped impression between antennal tubercles; frontal foveae absent; frontal rostrum distinct anteriorly. Vertex weakly convex; longitudinal carina absent; vertexal foveae small. Eyes reduced with 9 facets. Maxillary palpi moderately developed; palpomeres II smooth; III with tubercles; palpomere IV 0.24-0.28 mm long and about 3.06-3.24 times as long as wide, subcylindrical pseudosegment at apex. Antennae about 0.61-0.68 mm long; scapes subcylindrical and elongated, 2-2.18 times as long as pedicels, without modification; pedicels subcylindrical, 1.38-1.40 times as long as wide; antennomere III 1.67-1.72 times as long as wide; IV-VII subequal in length; VIII subglobose as long as wide; IX 0.82-0.86 times as long as wide; X transverse, 0.64-0.65; XI largest, pointed at apex, 1.76-1.84 times as long as wide (Fig. 8F View Figure 8 ). Pronotum 0.85-0.89 times as long as wide and widest at basal 2/3, lateral antebasal foveae connected by antebasal sulcus. Elytra slightly convex, 0.87 times as long as wide and widest at basal 1/3, each elytron with two basal foveae and subhumeral fovea. Legs slender; protibiae without spine (Fig. 8G View Figure 8 ); metatibiae with spine on apical (Fig. 8H View Figure 8 , arrow). Aedeagus robust, 0.53 mm long and 1.79 times as long as wide; penis bulbous and dorsal diaphragm small, transversely ovoid; parameres symmetrical, each bearing two setae; endophallus comprising simple strut basally and two symmetrical struts curved along with parameres, thickened basally (Fig. 8I View Figure 8 ).
Sexual dimorphism. Female metatibial spines absent.
Remarks.
Adults of this species are similar to that of Bryaxis girinensis Choi, Park, Lee & Park sp. nov. in the shape of antennomeres IV-XI (Figs 7D View Figure 7 , 8F View Figure 8 ). However, they can be distinguished by having angular tempora much longer than the eyes (Fig. 9F View Figure 9 ), smooth maxillary palpomere II (Fig. 9B View Figure 9 ), unadorned antennal scapes and pedicels (Fig. 8F View Figure 8 ), slender protibiae without a spine (Fig. 9D View Figure 9 ), and an endophallus composed of three long struts (Fig. 8I View Figure 8 ).
Etymology.
The specific epithet is the Latin word Bryaxis nemorosus ("wooded, shady", masculine) that refers to habitat where the types collected.
Habitat.
Specimens of this species were collected by sifting leaf and soil litter in wet forest with dense canopy, which is located on an island.
Distribution.
Korea (Gageo island, Sinan-gun, Jeollanam-do).
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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