Ephemera (Ephemera) sachalinensis Matsumura 1911 ...
Ephemera (Ephemera) sachalinensis Matsumura, 1911 Figures 9–15 Material examined. Russia: Primorsky Krai, Khasansky District, Barabashevka River, below Fish Hatchery, 03.08.2007, 2♀ adults, T. Tiunova; Ryazanovka River, below Okhotbaza, 11.06.2003, 2♀ adults, T. Tiunova; Sakhalinskaya Oblast, Sakhal...
| Main Author: | |
|---|---|
| Format: | Text |
| Language: | unknown |
| Published: |
Zenodo
2024
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.5281/zenodo.13618917 https://zenodo.org/doi/10.5281/zenodo.13618917 |
| Summary: | Ephemera (Ephemera) sachalinensis Matsumura, 1911 Figures 9–15 Material examined. Russia: Primorsky Krai, Khasansky District, Barabashevka River, below Fish Hatchery, 03.08.2007, 2♀ adults, T. Tiunova; Ryazanovka River, below Okhotbaza, 11.06.2003, 2♀ adults, T. Tiunova; Sakhalinskaya Oblast, Sakhalin Island, Lake Vavayskoye, eastern part, 18.07.2002, 3♀ adults, V. Teslenko; Amurskaya Oblast, Amur River basin, Bureya River, below Kulikovka village, 3♀ adults, T. Tiunova. Distribution. East Siberia, Far East Russia, Mongolia, Korea, China, Kazakhstan (Irtysh River basin). The egg has an oval shape close to quadrangular with rounded corners (Fig. 9). Dimensions: 204.0–230.0 µm in length (213.5 µm) and 118.0–132.0 µm in width (125.8 µm). The thickness of the extrachorion-adhesive layer is 1.9–3.0 µm (Fig. 15). The surface of the adhesive layer is shagreen or roughened (Fig. 9). There are one or two micropyles per egg in the equatorial area (Figs 9, 13). Micropyles are “tagenoform-type” (Figs 9–10), sperm guide ... : Published as part of Tiunova, Tatiana M., 2024, Egg morphology of six East Palaearctic species of the genus Ephemera Linnaeus (Ephemeroptera: Ephemeridae), pp. 381-399 in Zootaxa 5497 (3) on page 387, DOI: 10.11646/zootaxa.5497.3.4, http://zenodo.org/record/13618713 ... |
|---|