New record of Hylobius (Callirus) pinastri (Gyllenhal, 1813) (Coleoptera, Curculionidae) in Volyn Region

Abstract

H. pinastri (small pine weevil) inhabits almost the entire Palearctic. Lives in coniferous and mixed forests, mainly in wet spruce forests on Picea abies, rarely Pinus sylvestris (Pinaceae). Larvae develop in bark of stumps, lower parts of trunks and cutted woods. In Ukraine, this species occurs mainly in the north-western part (Volyn, Rivne, Zhytomyr, Lviv, Ivano-Frankivsk regions) and one record was published from the east of the country (Kharkiv region). In the Volyn region, one specimen of H. pinastri was found in the in the Shatskyi National Nature Park. The collection of material was carried out by counting animals on six test plots from 05.07.2022 to 09.25.2022. Three Barber traps were placed in each trial area. The traps were located at a distance of 50 m from each other. New finds of H. pinastri were registered in the Kivertsi National Park "Tsumanska Pushcha". 1 female was collected in a pine forest; 3 females and 2 males – on the border between the spruce forest and dry spruces; 1 male and 1 female – in dry spruces forest; 5 females was collected in a spruce forest with mixed hardwoods. The paper provides a key for the identification of two closely related species, H. pinastri and H. abietis. Current finds of this species confirm previously published data on its occurrence in the Volyn region and the contiguity of this species to spruce stands. It can be expected that H. pinastri can be found in other places of Ukraine.