Figure 5

Abdomen of S. rufulus larva. (A) Abdominal sternites I – II, (B,C) abdominal segment IX, (B) dorsal, (C) ventral, (D,E) abdominal segment I, (D) sternum detail (E) posterior margin (F) abdominal segment IV, without sternal sutures in ventral view, (G) anal hook, (H) fan-shaped-tufted seta, (I) ramose setae, posterior margin of an abdominal segment, (J–L) anal operculum, (J) lateral margin, (K) external view, (L) apex.