Euprosthenops insperatus sp. nov., holotype male (A–D) and E. proximus Lessert, 1916, male (E–G), separated copulatory bulb A, E retrolateral B, F retrodorsal C ventral D, G frontal. Small teeth of embolus are indicated with arrows. Abbreviations: Co – conductor, Dt – distal tegular process, El – embolus loop, Em – embolus, Ma – median apophysis, Pp – prolateral projection, St – subtegulum, Tp – prolateral tegular pouch. Scale bars: 0.2 mm.