Stenocorus vittidorsum, a Caucasian species occuring in Azerbaijan, Armenia, Georgia, and Turkey, has been described from Azerbaijan as Toxotus persicus var. vittidorsum by Edmund Reitter in 1890 [▽].
The larval biology of the species is unknown, Mikhail Danilevsky assumes that the larvae live in the soil at the roots of the trees [❖]. The authors collected in a mountain
treeless pastures in Armenia a number of S. vittidorsum adults sitting only on leaves of Cephalaria gigantea. beetles sat on leaves or mated there, some females were found at
the base of the stems, so there is a possibility that larval development takes place in the roots of the plant, as is the case with related species
[e.g. Stenocorus (Toxotochorus) validicornis validicornis Pic, 1900].
| Body length: | ♂♂ 15 - 22 mm / ♀♀ 18 - 23 mm |
| Life cycle: | 1 year [?] |
| Adults in: | June - July |
| Host plant: | probably roots of Cephalaria gigantea |
| Distribution: | Azerbaijan, Armenia, Georgia, East Turkey |
The depicted beetles were found sitting on leaves of its probably host plant (giant scabious, Cephalaria gigantea) growing in mountain meadows ca 4.5 km south of Kajaran
(Քաջարան, 2000 m a.s.l., Syunik prov., South Armenia).
Collected by Michal Hoskovec, Petr Jelínek and M. Harnych
[▽]
Reitter E.:
Ueber die mit Toxotus meridianus Panz. verwandten Coleopteren-Arten.
Wiener Entomologische Zeitung 9 (9): 249-250, 1890.
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[❖]
Danilevsky M.L.:
Longicorn beetles (Coleoptera, Cerambycoidea) of Russia and adjacent countries. Part 1.
Higher School Consulting, Moscow, 550pp [pages 99-100], 2014.
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