Lithobius (Monotarsobius) tetrasulcus sp. nov.  A male holotype, habitus, dorsal view; B holotype, ocelli and Tomosvary’s organ (To), lateral view; C male holotype, cephalic plate, dorsal view; D male holotype, cephalic plate, ventral view; E male holotype, forcipular coxosternite, ventral view; F female paratype, posterior segments and gonopods, ventral view; G female paratype, apical claw of gonopods, ventral view; H female paratype, apical claw of gonopods, dorsal view.