Figure 11b from: Jakovlev J, Salmela J, Polevoi A, Penttinen J, Vartija N (2014) Recent noteworthy findings of fungus gnats from Finland and northwestern Russia (Diptera: Ditomyiidae, Keroplatidae, Bolitophilidae and Mycetophilidae). Biodiversity Data Journal 2: e1068. https://doi.org/10.3897/BDJ.2.e1068
Figure 11b - Boletina borealis Zetterstedt (a) and Boletina intermedia Lundström (b), male specimens collected from Finnish Lapland. Boletina intermedia, parameres, aedeagus and 9th tergite (all in dorsal view). Note the spear-shaped, stout parameres.