Figure 2 in Evolutionary assessment of the rove beetle subfamily Proteininae Erichson, 1839 (Coleoptera: Staphylinidae) triggered by the X-ray based description of its first fossil in Baltic amber from Denmark

Figure 2. Morphology of extant Proteinus. (A) Proteinus brachypterus (Fabricius, 1792). (B) Proteinus sp. (C) Ventral side of head of Proteinus laevigatus Hochhuth, 1872. (D) Ventral side of prothorax of Proteinus laevigatus Hochhuth, 1872. (E) Ventral side of meso- and metathorax of Proteinus laevigatus Hochhuth, 1872. (F) Apical segments of abdomen of female Proteinus laevigatus Hochhuth, 1872. FML = forked median lobe; Gs = gular sutures; Hyp = hypomeron; LL = lateral lobe; Ms = mesosternum; Mn = mentum; Mt = metasternum; Pr = prosternum; StX = sternite X. Photographs reproduced and used with permission from Aslak Kappel Hansen (2A) and Guido Bohne (2B).