Fig. 2. Photomicrographs of the medio-ventral region of the ninth abdominal segment in Canthon cyanellus larvae. Male larvae: A) first instar; B) second instar; C) third instar (chlorazol black). Larval testicular follicles in toto: D) first instar; E) second instar; F) third instar (Feulgengreen light). Female larvae, ninth abdominal segment in the medio-ventral region: G) first instar; H) second instar; I) third instar (chlorazol black). Larval ovaries in toto: J) first instar; K) second instar; L) third instar (Feulgen-green light). All photos are to the same scale. Abbreviations: ov ¼ ovarioles; ta ¼ terminal ampulla; tf ¼ testicular follicles.