Abdominal segment VIII of Spencerhydrus species, instar I 23 S. latecinctus, dorsal aspect 24 S. pulchellus, dorsal aspect 25 S. latecinctus, ventral aspect 26 S. pulchellus, ventral aspect. Numbers and lowercase letters indicate primary setae and pores, respectively. Additional setae and pores not labelled. Abbreviation: AB: abdominal segment VIII. Scale bar: 0.50 mm.

  Part of: Michat MC, Alarie Y, Watts CHS (2019) Dealing with a hairy beast–larval morphology and chaetotaxy of the Australian endemic diving beetle genus Spencerhydrus (Coleoptera, Dytiscidae, Cybistrini). ZooKeys 884: 53-67. https://doi.org/10.3897/zookeys.884.38391