FIGURES 15–18. Rhyacophila palmeni McLachlan 1879, 5 in The larva of Rhyacophila palmeni McLachlan 1879 (Trichoptera: Rhyacophilidae) from Greece and Kosovo with notes on ecology and zoogeography including a key to the known Greek Rhyacophila larvae

FIGURES 15–18. Rhyacophila palmeni McLachlan 1879, 5th instar larva. 15, Gill of abdominal segment I, right lateral, specimen from Kosovo (db = dorsal branch, vb = ventral branch). 16, Abdominal sterna II–IV, ventral, specimen form Kosovo. 17, Abdominal tergum IX and anal prolegs, dorsal, specimen from Karpenisi, Greece (sp = sword process). 18, Abdominal segment IX and anal prolegs, right lateral, specimen from Kosovo (ac = anal claw; b = 'b' sclerite; c = 'c' sclerite; h = proximal hook of sclerite 'b'; sp = sword process; arrows = teeth on anal claw). Scale bars: 0.5 mm.