Giant megaxiela [1] ( lat. Megaxyela gigantea ) is a rare species of sawflies from the Xyelidae family. A relic of the Neogene fauna. [2]
| Giant megaxiel | ||||||||||||||||||||
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| Megaxyela gigantea Mocsary , 1909 |
Content
Distribution
The Far East of Russia (Primorsky Territory, Ussuri district), Korea , Japan ( Honshu Island). [2]
Description
The body length of the female with the ovipositor is about 13 mm, the male is 11 mm. In the middle of the front edge of the clypeus there is a triangular protrusion. [3] From above it is black, from below it is light reddish, matte, finely tiled, with a faint metallic blue tint. It is distinguished by elongated black hind legs, whose length exceeds the length of the body (front and middle legs are yellow-red, short). In males, the abdomen has yellowish-white spots on top of the sides of the second, fourth, and eighth segments, while the female has a white border on top of the posterior edge of the second and sixth segments. Antennae consist of 11 segments. They are found in mountain cedar-fir-broad-leaved forests of southern Primorye. Larvae were found feeding on Manchurian walnut ( Juglans mandshurica ). [2]
Guard Status
| The Red Book of Russia the population is declining | |
The giant megaxiel is listed in the Red Book of Russia as a species that has a steady tendency to decrease in numbers. The main limiting factor is deforestation of broad-leaved coniferous forests [2] .
Notes
- ↑ Ermolenko V.M. GIANT MEGAXIELA - Megaxyela gigantea Mocsary, 1909 . Date of treatment January 14, 2012. Archived on August 14, 2012.
- ↑ 1 2 3 4 Giant megaxiel Megaxyela gigantea (Red Book of Russia)
- ↑ Key to insects of the Russian Far East. T. IV. Retina-winged, scorpion, hymenoptera. Part 5 / under the general. ed. P.A. Lera . - Vladivostok: Dalnauka, 2007 .-- S. 922. - 1052 p. - ISBN 978-5-8044-0789-7 .
Literature
- Takeuchi K. 1938. A systematic study on the suborder Symphyta (Hymenoptera) of the Japanese empire (I) // Tenthredo. 1938. Vol. 2, N 2. P. 173—229.
- Takeuchi K. 1939. A systematic study on the suborder Symphyta (Hymenoptera) of the Japanese empire (II) // Tenthredo. 1939. Vol. 2, N 4. P. 393-439.