| 25a (23). Fore wing apex marginal fringe setae
  well developed, or at least hair sockets in the margin remain as indication
  of the presence of hairs (Fig A)...............................................................................................................................................................................................................................27           Please CLICK on picture to enlarge     25b. Fore wing marginal fringe absent (Fig. A); fore wing usually with reduced
  hairiness......................................................................................26           Please CLICK on picture to enlarge     |