Euseius finlandicus ( Oudemans 1915 )

Euseius finlandicus ( Oudemans 1915) View in CoL

Material examined — 1 ♀ (Gülyalı, N40°56′54.57″ E38° 2′6.78″, 380 m, 18. IX.2019)

Remarks — Euseius finlandicus is a globally widespread species, with a presence in 57 countries based on Demite et al. (2023). This predatory mite was described by Oudemans (1915) based on the material collected from Salix caprea L. ( Salicaceae ) in Finland. The species was very common in different habitats around the world. It commonly occurs on various plants in Türkiye ( Faraji et al. 2011). In previous studies in Ordu, which is the field of this study, E. finlandicus was collected from vegetables ( Soysal and Akyazı 2018), stone ( Altunç and Akyazı 2019), and pome ( Akyazı et al. 2017 ; Akyol and Akyazı 2022) fruits. It was classified as Type 4 lifestyle, pollen-feeding generalist predator ( McMurtry et al. 2013). Many members of this genus prefer glabrous leaves ( Moraes et al. 1986 ; McMurtry et al. 2013).

This species was collected from pubescent kiwi leaves in the current study, although it has also been reported mainly on glabrous substrates ( Kabicek 2005, 2008 ; McMurtry et al. 2013). Kabicek (2008) has reported the common occurrence of this species in the glabrous region of the leaves of Corylus avellana L. ( Betulaceae ) moving to pubescent patches when disturbed. Additionally, type IV lifestyle phytoseiids contain species for which pollen constitutes an important part of the diet. It is known to feed on species including tetranychid, eriophyid, tyroglyphid, and tarsonemid mites, as well as pollen, fungal hyphae and spores, insect eggs and larvae, honeydew, and plant fluids. ( Schausberger 1992 ; Kostainen and Hoy 1994; Abdallah et al. 2001). Additionally, Akyol and Akyazı (2022) found that the pair of E. finlandicus and B. rubrioculus had a very strong positive relationship. Schausberger (1997) reported that E. finlandicus tended to prey on motile immatures of T. pyri and Kampimodromus aberrans (Oudemans) ( Mesostigmata : Phytoseiidae ). Similarly, Akyol and Akyazı (2022) discovered that the pair of E. finlandicus and T. rapidus had a very highly positive association.