Кавказский энтомологический бюллетень (Jul 2024)
Two new species and a new subgenus of the weevil genus Otiorhynchus Germar, 1822 (Coleoptera: Curculionidae) from southeastern Turkey
Abstract
Morphological features of weevils of the genus Otiorhynchus Germar, 1822 from the closely related subgenera Podonebistus Reitter, 1912, Pterygodontus Białooki, 2015, Pterygodontoides Białooki, 2015 and Podorhynchus Białooki, 2015 are discussed. New data on O. (Pterygodontus) naldoekensis Magnano, 2005 and on the type specimens of O. (Podorhynchus) cylindricus Stierlin, 1877 and O. (Podorhynchus) subparallelus Stierlin, 1893 are given. Otiorhynchus subparallelus sp. resurr. is resurrected from synonyms of O. cylindricus, from which it difers in structure of antennae and femora. The new species Otiorhynchus (Pterygodontus) keskini sp. n. is described from Adıyaman Province of Turkey. It is closely related to O. nefandus Faust, 1888 from which differs in the following features: antennal club more elongated, mesonotum distinctly wider, elytra in middle part subparallel-sided, covered with hairs without any scales. Te new subgenus Сommagenus subgen. n. and the new species O. (Сommagenus) svetlanae sp. n. are described from Adıyaman Province. Сommagenus subgen. n. is similar to Pterygodontus, from which differs in the following features: antennal club strongly elongated, 4.67–4.71 times as long as wide; the base of the prothorax in lateral view distinctly emarginated; fore femora of male weakly widened, somewhat wider than its mid- and hind femora, and than fore femora of female; aedeagus symmetrical, its lamella short, broadly blunted apically; armament of endophallus with tiny spicules without large sclerites; cornu of spermatheca narrow and long, sickle-shaped, collum and ramus almost contiguous with each other, the latter slightly larger; lamella of spiculum ventrale as long as wide or slightly elongated, with straight apical margin, most heavily sclerotized in apical half, manubrium not widened before lamella; gonocoxites cone-shaped, weakly sclerotized, with long hairs in apical half; stylus subapical, in the form of outgrowth, vaguely separated from coxite. Both new species were collected together at night on trunks of Quercus brantii Lindley.
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