Peltocercyon vagus (Sharp, 1884) Mai & Jia & Ryndevich & Angus & Minoshima & Fikáček & Růžička, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5671.1.1 |
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publication LSID |
lsid:zoobank.org:pub:60D33D8C-BDC2-4C2A-B840-90014815E8CB |
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persistent identifier |
https://treatment.plazi.org/id/1032930E-FFB7-6B19-FF2C-20FCB3DEEAC4 |
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treatment provided by |
Plazi |
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scientific name |
Peltocercyon vagus |
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Peltocercyon vagus group
Diagnosis of the Peltocercyon vagus group. Length 2.5–3.2 mm. Dorsum yellowish or reddish brown to dark brown, somewhat paler on basal part of elytra. Pronotum with uniform crescent-shaped punctures. Elytra dull ( Fig. 29A View FIGURE 29 ), spaces between ground punctation with microreticulation ( Fig. 4E, F View FIGURE 4 ). Mentum with dense microsculpture and coarse punctures ( Fig. 30C View FIGURE 30 ). Posterior tentorial pits not distinctly depressed ( Fig. 30C View FIGURE 30 ). Prosternum tectiform medially; lateral portion without ridge, depressed lateral portions shagreened; prosternal process deeply notched posteriorly ( Fig. 30D View FIGURE 30 ). Antennal groove moderate in size ( Fig. 30D View FIGURE 30 ). Mesoventral plate spindle-shaped ( Fig. 30E View FIGURE 30 ). Arcuate ridge of metaventrite strongly bent backwards and distinct ( Fig. 30E View FIGURE 30 ). Lateral areas of metaventrite without coarse punctures ( Fig. 30E View FIGURE 30 ). First abdominal ventrite with some short longitudinal sculpture basally ( Fig. 30F View FIGURE 30 ). Male genitalia ( Fig. 29D–G View FIGURE 29 ): Paramere slightly expanded and rounded apically; inner face of paramere without fringe of setae ( Fig. 29D View FIGURE 29 ). Median lobe bluntly pointed apically ( Fig. 29E View FIGURE 29 ).
Biology. Adults inhabit forest leaf litter.
Distribution ( Fig. 41 View FIGURE 41 ). Japan and adjacent areas.
Comments. This group is restricted to Japan and adjacent areas (Korea, Russian Far East). Its members can be distinguished by the presence of the microreticulation on the elytral surface ( Fig. 4E, F View FIGURE 4 ). We did not examine enough material and types of all species, hence, we do not provide a detailed treatment for species of this group here. Based on the original descriptions, some of the Japanese species seem to be extremely similar, with differences corresponding to intraspecific variability in Peltocercyon species treated above. Larger material, ideally including the DNA data based on fresh specimens, is needed to resolve the status of these species .
Included species. Peltocercyon shigehisai Hoshina, 2018 , P. ohoni Hoshina, 2021 , P. subopacipennis (Nakane, 1965) , Peltocercyon vagus (Sharp, 1884) , comb. nov., and P. sanaii ( Hoshina, 2008) , comb. nov.
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.