Stactobiella Martynov, 1924

Ibrahimi, Halil, Bilalli, Astrit, Geci, Donard & Musliu, Milaim, 2024, An unexpected discovery of Stactobiella risi (Felber, 1908) (Trichoptera, Hydroptilidae) in Kosovo with notes on its habitat, Journal of Insect Biodiversity and Systematics 10 (3), pp. 617-626 : 621

Genus Stactobiella Martynov, 1924

Species Stactobiella risi (Felber, 1908)

Material examined. 3♂♂, KOSOVO, Leposaviq Municipality, Bistrica e Shalës River (43°00'32.05''N, 20°52'02.18''E, 566 m), 01.VII.2023 . 1♂, 2♀♀, KOSOVO, Mirusha River (42°31'26.09''N, 20°33'35.61''E 357 m), 09.VII.2023 , Leg.: H. Ibrahimi, A. Bilalli, D. Geci & M. Musliu.

Remarks. The species is reported from Austria ( Graf et al., 1998), Bulgaria ( Kumanski, 1988), Finland, France, Germany, Greece, Italy, Hungary, Lithuania, North Macedonia, Portugal, Romania, Spain, Sweden and Switzerland ( Thomson, 2023). New species for the caddisfly fauna of Kosovo.

Diagnosis. The morphology of the male genitalia in the collected specimens generally corresponds to the described species ( Malicky, 2004), with the exception of a less apically elongated inferior appendages in lateral view, which may be attributed to geographical variability. Segment X elongated, apically narrow; superior appendages narrow, hook-shaped, curved ventrad; inferior appendages in lateral view directed dorsad, basally wider, apically narrow and rounded; aedeagus long, slender, apically slightly curved ( Fig. 2).