Article · Wikipedia archive · Last revised Aug 9, 2026

Acilius (beetle)

Acilius is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine.

Last revised
Aug 9, 2026
Read time
≈ 1 min
Length
232 w
Citations
5
Source
Acilius
Acilius sinensis
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Coleoptera
Suborder: Adephaga
Family: Dytiscidae
Subfamily: Dytiscinae
Tribe: Aciliini
Genus: Acilius
Leach, 1817

Acilius is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine.12

Despite the prevalence of some species, one species, A. duvergeri, is listed as vulnerable on the IUCN Red List.1

Species

The genus Acilius contains the following 13 extant species in 2 subgenera:3
Subgenus Acilius:

Subgenus Homoelytrus

Extinct species

These three extinct species are known only from fossils:1

  • Acilius florissantensis Wickham, 1909
  • Acilius oeningensis (Heer, 1847)
  • Acilius praesulcatus Lomnicki, 1894


References

References

  1. Bergsten, Johannes; Miller, Kelly B. (2006). "Taxonomic revision of the Holarctic diving beetle genus Acilius Leach (Coleoptera: Dytiscidae)". Systematic Entomology. 31 (1): 145–197. Bibcode:2006SysEn..31..145B. doi:10.1111/j.1365-3113.2005.00309.x. ISSN 1365-3113. S2CID 54001536.
  2. Miller, K.B.; J. Bergsten (2016). Diving Beetles of the World: Systematics and Biology of the Dytiscidae. JHU Press. pp. 131–132. ISBN 978-1-4214-2054-7.
  3. Nilsson, Anders N.; Hájek, Jiří (2021). "A World Catalogue of the Family Dytiscidae or the Diving Beetles (Coleoptera, Adephaga)" (PDF) (1.I.2021 ed.).