Bryaxis fabaiformis Choi, Park, Lee & Park, 2023
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publication ID |
https://dx.doi.org/10.3897/zookeys.1182.97346 |
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publication LSID |
lsid:zoobank.org:pub:86F5AC45-D35E-4DDF-AB04-2BCBDEEE8407 |
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persistent identifier |
https://treatment.plazi.org/id/1110CCA6-D13F-45B9-A9EF-49B993E8DF44 |
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taxon LSID |
lsid:zoobank.org:act:1110CCA6-D13F-45B9-A9EF-49B993E8DF44 |
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treatment provided by |
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scientific name |
Bryaxis fabaiformis Choi, Park, Lee & Park |
| status |
sp. nov. |
Bryaxis fabaiformis Choi, Park, Lee & Park sp. nov.
Figs 5 View Figure 5 , 6A, C, E View Figure 6
Type materials
(N = 4, 3 ♂♂, 1 ♀). Holotype male. "Korea: Gangwon Prov. Gujeol-ri, Yeoryang-myeon, Jeongseon-gun, 24 Apr 2020, 37°31'08.3"N, 128°46'43.0"E, 552 m, sifting soil & leaf litter, U.-J. Byeon, T.-Y. Jang" (NIBR). Paratypes. (CBNUIC, 1♂ slide mounted, 1♂, 1♀ dried). "Korea: Gangwon Prov. Gujeol-ri, Yeoryang-myeon, Jeongseon-gun, 24 Apr 2020, 37°31'08.3"N, 128°46'43.0"E, 552 m, sifting soil & leaf litter, U.-J. Byeon, T.-Y. Jang".
Diagnosis.
Enlarged fabiform antennal pedicels with subcylindrical glandular nodule on inner margin in male (Figs 5E, F View Figure 5 , 6A View Figure 6 , arrows).
Description.
Body reddish brown, antennae, maxillary palpi, legs slightly lighter than body, length 1.29-1.41 mm, maximum width 0.60-0.64 mm (Fig. 5A-D View Figure 5 ). Setae on body golden and long. Head 0.84-1.00 times as long as wide (Fig. 5F View Figure 5 ). Frons with U-shaped impression between antennal tubercles; frontal foveae absent; frontal rostrum distinct anteriorly. Vertex weakly convex; longitudinal carina distinct; vertexal foveae enlarged. Eyes large with 31-32 facets. Maxillary palpi moderately developed; palpomeres II-III with sparse tubercles; palpomere IV 0.25-0.29 mm long and about 2.92-3.44 times as long as wide, subcylindrical pseudosegment at apex. Antennae about 0.58-0.61 mm long; scapes short, without modification, 0.73-1.11 times as long as pedicels; pedicels 1.02-1.19 times as long as wide; antennomere III 1.18-1.23 times as long as wide; IV-VIII subequal in length; IX-X transverse, IX 0.66-0.69 times as long as wide and X 0.62-0.63 times as long as wide; XI largest, pointed at apex, 1.65-1.75 times as long as wide (Fig. 5F View Figure 5 ). Pronotum 0.84-0.89 times as long as wide and widest at basal 3/5, lateral antebasal foveae connected by antebasal sulcus. Elytra convex, 0.85-0.94 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. 5G View Figure 5 ); metatibiae with spine at apex (Fig. 5H View Figure 5 , arrow). Aedeagus robust, 0.43 mm long and 1.79 times as long as wide; penis bulbous and dorsal diaphragm circular; parameres small and symmetrical, each with three setae; endophallus comprising two symmetrical struts, each broadened basally and apically, and shortly branched basally (Fig. 5I View Figure 5 ).
Sexual dimorphism. Female eyes slightly shorter than tempora, comprising 9 facets; antennal pedicels without modification; metatibial spines absent.
Remarks.
Adults of this species are similar to those of Bryaxis kimjongkuki Nomura & Lee, 1993 in having the maxillary palpomere II-III with tubercles and asymmetrical antennal scapes. However, they can be recognized by having a rounded tempora as long as the eyes (Fig. 6E View Figure 6 ), a glandular nodule situated at the mid-level of the antennal pedicels (Fig. 6A View Figure 6 , arrow), and protibiae without a spine (Fig. 6C View Figure 6 ).
Comments.
The localities of B. fabaiformis sp. nov. probably overlap with those of B. kimjongkuki Nomura & Lee given that the latter species was abundantly collected near the type localities of the former (Fig. 11 View Figure 11 ).
Etymology.
The specific epithet is a combination of the Latin words faba ( “bean”, feminine) and - formis ("having the form of", masculine/feminine) and refers to the shape of antennal pedicels in the male.
Habitat.
Specimens of this species were collected by sifting soil and leaf litter in mixed forest.
Distribution.
Korea (Jeongseon-gun, Gangwon-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.