Diagram of first instar chaetotaxy. 20, 22 Rozenia calliopsidis sp. n., thoracic and abdominal tergites; 21, 23 Rozenia platicephala sp. n., thoracic and abdominal tergites; a-submedian row of setae, b-interstitial row of setae, c-supralateral row of setae, d-lateral row of setae; point-stable presence of seta; circle-seta with unstable presence; large point-caudal seta.