Figure 18.Male aedeagal median lobe and associated parameres, Mecyclothorax spp., right lateral view; scale bars 0.5 mm A Mecyclothorax jarrigei, teneral, Pito Hiti, 2000 m el. (EMEC) B Mecyclothorax aano holotype C Mecyclothorax aano holotype, internal sac everted D Mecyclothorax hamatus E Mecyclothorax altiusculoides F Mecyclothorax paraltiusculus G Mecyclothorax pseudaltiusculus, teneralAbbreviations: dop dorsal ostial microtrichial patch fp flagellar plate gp gonopore oc ostial canal vop ventral ostial microtrichial patch.