FIGURES 5–15 in A featherwing beetle without wings: re-discovery and second species of Rioneta (Coleoptera: Ptiliidae) from the Uluguru Mountains, Tanzania

FIGURES 5–15. SEM images of Rioneta uluguruensis. 5—habitus, ventral; 6—head, ventral; 7—left fore-tarsus, ventral; 8—two apical antennomeres, arrow showing groups of sensillae, ventral; 9—internal surface of meso- and metathorax with metendosternite, two arrows show internal part of lateral longitudinal keel on each side of metaventrite, dorsal; 10—spermatheca and sperm pump, ventral; 11—pretothorax and abdomen, arrow showing lateral longitudinal keel on left metaventrite, left elytron removed, fronto-lateral; 12—pterothorax and abdomen, lateral, left elytron removed, three arrows showing spiracles I–III, respectively; 13—internal surface of abdominal tergites V–X, double-pointed central arrow showing fused tergites VIII and IX, two lateral arrows showing remnants of internal apodemae of tergite IX, dorsal; 14—abdominal apex, both elytra removed, dorsal, vertical double-pointed arrow showing fused tergites VIII and IX, horizontal arrows showing spiracles VIII–IV; 15—right part of abdomen, right elytron removed, dorsal, oblique arrow showing posterior edge of terige VII without wing cleaning (=toiletry) device, vertical arrows showing spiracles VIII–III.