Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Horistonotus williamsi
escarabajo
Adults omnivorous, larvae carnivorous; littoral to humid forest zones; June, September.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera
Suborder
Polyphaga
Superfamily
Elateroidea
Family
Elateridae
Genus
Horistonotus
Species
williamsi
Taxon category: Accepted
Syn.: Coptostethus williamsi Mutchler, 1925, fide Peck (2006)
Origin: Endemic
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: Baltra, Marchena, Pinta, Santa Cruz, Santiago, Seymour
- Franz, H. (1985) Beitrag zur Kenntnis der Koleopterenfauna der Galapagos-Inseln. Österr. Akad. Wissensch. Mathem.-naturw. Kl., Abt. I, 194(1-5): 73-124.
- Mutchler, A.J. (1925) Coleoptera. From the Williams Galapagos Expedition. Zoologica 5(20): 219-240.
- Peck, S.B. (2006) The Beetles of the Galápagos Islands, Ecuador: Evolution, Ecology, and Diversity (Insecta: Coleoptera) NRC Research Press, Ottawa, Ontario, Canada. 314 pp.
- Van Dyke, E.C. (1953) The Coleoptera of the Galapagos Islands. Occasional Papers of the California Academy of Sciences 22: 1-181.
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Horistonotus williamsi", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=6503. Accessed 6 June 2026.