Copelatus oblitus Sharp, 1882
publication ID |
https://doi.org/ 10.11646/zootaxa.5175.2.1 |
publication LSID |
lsid:zoobank.org:pub:C4601ABE-4C6F-48BA-BA24-3339A44DC15C |
DOI |
https://doi.org/10.5281/zenodo.7003376 |
persistent identifier |
https://treatment.plazi.org/id/3B0087B3-145A-FF9C-FF3A-FAC2FE74442B |
treatment provided by |
Plazi |
scientific name |
Copelatus oblitus Sharp, 1882 |
status |
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Copelatus oblitus Sharp, 1882 View in CoL
Source of material. The five instar II and five instar III larvae studied were reared ex ovo from adults collected at the following locality: Japan. Mantaburu, Yonaguni-cho, Yonaguni-jima Island, Okinawa Prefecture. 24°27’04.1”N 122°57’36.8”E, 13VI.2019; K. Watanabe leg.
Diagnosis (instar III). The third instar of Copelatus oblitus can easily be distinguished from that of the other species studied in this paper by the following combination of characters: HL = 0.80 mm; L3 <2.00 mm; U <0.30 mm; head capsule ovate, not constricted at level of occipital region ( Fig. 30 View FIGURES 30–31 ), scale-like sculpticels present over frontoclypeus and parietale; anterior margin of frontoclypeus narrowly convex, extending mesally well below level of adnasalia ( Fig. 30 View FIGURES 30–31 ); adnasalia margined with short bluntly rounded teeth ( Fig. 64 View FIGURE 64 ); MP2/MP1> 1.50; GA/MP1> 1.50; 1.30 <LP2/LP1 <1.90; inner margin of stipes lacking a dorsal linear row of spinulae; profemur with less than 3 PV and 4 AV secondary setae; metafemur with less than 3 AV secondary setae; urogomphus composed of two urogomphomeres; U/HW <0.40; U/LAS <0.50; Oriental and Palaearctic.
Description, instar II
Body: Measurements and ratios aimed to characterize body shape are shown in Table 4 View TABLE 4 .
Head: Head capsule ovate, not constricted at level of occiput; anterior margin of frontoclypeus narrowly convex, extending mesally below level of adnasalia; scale-like sculpticels present over frontoclypeus and parietale; adnasalia margined with short bluntly rounded teeth (see Fig. 64 View FIGURE 64 ); HL = 0.55–0.58 mm; A/MP = 1.39–1.51; MP/LP = 1.70–1.82; MP2/MP1 = 1.67–1.95; GA/MP1 = 1.85–2.32; LP2/LP1 = 1.56–1.89; MNL/MNW = 2.41–2.61.
Thorax: L3 = 1.10–1.13 mm.
Abdomen: LAS = 0.37–0.39 mm; LAS subconical, not constricted posteriorly at point of insertion of urogomphi. Urogomphus: U = 0.17–0.19 mm, composed of two urogomphomeres; U/HW = 0.26–0.29; U/LAS = 0.45–0.51.
Chaetotaxy: Parietale with 3–5 temporal spines; position and number of secondary setae on legs are shown in Table 5 View TABLE 5 .
Description, instar III ( Figs 30–33 View FIGURES 30–31 View FIGURES 32–33 , 64 View FIGURE 64 ). As second-instar larva except as follows:
Body: Measurements and ratios aimed to characterize body shape are shown in Table 6.
Head ( Figs 30 View FIGURES 30–31 , 64 View FIGURE 64 ): HL = 0.74–0.80 mm; A/MP = 1.50–1.60; MP/LP = 1.65–1.82; MP2/MP1 = 1.44–1.67; GA/MP1 = 1.59–1.83; LP2/LP1 = 1.31–1.47; MNL/MNW = 2.40–2.60.
Thorax ( Figs 32–33 View FIGURES 32–33 ): L3 = 1.57–1.64 mm.
Abdomen ( Fig 31 View FIGURES 30–31 ): LAS = 0.54–0.60 mm; U = 0.20–0.25 mm, U/HW = 0.22–0.27; U/LAS = 0.37–0.47.
Chaetotaxy: Parietale with 3–4 temporal spines; position and number of secondary setae on legs are shown in Figs 32–33 View FIGURES 32–33 and Table 7 View TABLE 7 .
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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