Oyamia nigribasis Banks, 1920
publication ID |
https://doi.org/ 10.11646/zootaxa.5551.1.3 |
publication LSID |
lsid:zoobank.org:pub:8898D059-5E78-451F-8646-D47D4A1A8BE9 |
DOI |
https://doi.org/10.5281/zenodo.14390763 |
persistent identifier |
https://treatment.plazi.org/id/F47E879B-7C5B-6F01-FF54-FA40FDC14450 |
treatment provided by |
Plazi |
scientific name |
Oyamia nigribasis Banks, 1920 |
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Oyamia nigribasis Banks, 1920 View in CoL
Figs. 69−75 View FIGURES 69–75
Material examined. Russia, Far East , Amurskaya Oblast: 1♀, Bureya River near Novobureysk , left bank, Amur River basin, 12.07.2012, coll. V. Teslenko; Jewish Autonomous Oblast: 1♀, Bastak Nature Reserve, Glinyanka River , light trap, 11.07.2018, coll. T. Vshivkova; Primorsky Krai: 4♀, Pasechnaya River, Kievka River basin, Lazo settlement, 24.07.2005, coll. Yu. Sundukov; 12♂, 7♀, Komissarovka River near Dvoryanka village, Khanka Lake basin, 25.06.2015, coll. V. Lyubaretz; 5♂, 11♀, Shumnaya River, Ussuri River basin, Amur River basin, near Shumnyi settlement, 26.06.2017, coll. V. Lyubaretz; 1♂, 1♀, Bolshaya Ussurka River , Amur River basin, Melnichnoe village , 7.07.2013, coll. V. Lyubaretz.
Egg. Oval but slightly asymmetrical ( Figs. 69, 74 View FIGURES 69–75 ), dark brown, total length 446−390 μm, equatorial width 317−291 μm (n=3). Collar short, stalked, rim flanged, and irregularly incised; sides of collar with irregularly spaced ridges reaching the shoulders and forming a single row of prolonged, hexagonal, smooth, and shallow cells ( Figs. 69, 71, 74 View FIGURES 69–75 ). Anchor is umbrella-like; the surface is composed of hexagonal units with globular bodies (2–9) grouped inside and distributed over the whole area of the anchor plate ( Fig. 70 View FIGURES 69–75 ); the edge of the anchor plate has a row of triangular projections bearing the single globular bodies ( Fig. 70 View FIGURES 69–75 ). The cleaned chorion is smooth, with indistinct follicular cell impressions over the whole surface ( Figs. 69, 72 View FIGURES 69–75 ). The structure on the extrachorion membrane with hexagonal FCI’s bearing a few (2−4) large adhesive mushroom bodies over each follicle cell impression ( Figs. 74−75 View FIGURES 69–75 ). The micropylar line is closer to the anterior pole; micropylar canals are tunnel-shaped, long, and slightly slanted; sperm guides open; orifices have slightly raised rim ( Figs. 69, 73 View FIGURES 69–75 ). On the extrachorion layer, micropylar orifices are surrounded by rosettes of FCI’s that resemble flowers ( Fig. 75 View FIGURES 69–75 ).
Comments. The egg of O. nigribasis is generally similar to that of O. lugubris ( McLachlan, 1875) , but the chorionic surface of that species at the shoulder area is covered with two rows of hexagonal, smooth, and deep cells with raised walls ( Isobe & Uchida 2009).
Distribution: East Asian mainland species with distribution limited to the south of the Russian Far East (Amurskaya Oblast, south Khabarovsk Krai, and Primorsky Krai), China ( Huo et al. 2022), North Korea ( Zwick 1973), and South Korea (Stark 2010).
V |
Royal British Columbia Museum - Herbarium |
T |
Tavera, Department of Geology and Geophysics |
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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Perlinae |
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Perlini |
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