Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

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Stomion obesum Van Dyke, 1953

Escarabajo tenebriónido, Darkling beetle

Scavenger; littoral and arid zones; February, April–July, September–December; under debris, soil washing, beer traps.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Arthropoda

Class
Insecta

Order
Coleoptera

Suborder
Polyphaga

Superfamily
Tenebrionoidea

Family
Tenebrionidae

Section
Trimytini

Genus
Stomion

Species
obesum

Taxon category: Accepted

Syn.: Stomion galapagoensis pinzoni Franz, 1985, fide Peck (2006)

Origin: Endemic

Distribution

Map of specimen collection localities or observation records for this species in our collections database.

Distribution: Pinzón, Tortuga

References

  • Finston, T.L. Peck S.B. (1995) Population structure and gene flow in Stomion: a species swarm of flightless beetles of the Galápagos islands. Heredity 75: 390-397.
  • Finston, T.L. Peck, S.B. (2004) Speciation in Darwin´s darklings: taxonomy and evolution of Stomion beetles in the Galápagos Islands, Ecuador (Insecta: Coleoptera: Tenebrionidae). Zool. J. Linn. Soc. 141: 135-152.
  • Franz, H. (1985) Beitrag zur Kenntnis der Koleopterenfauna der Galapagos-Inseln. Österr. Akad. Wissensch. Mathem.-naturw. Kl., Abt. I, 194(1-5): 73-124.
  • Linsley, E.G. Usinger, R.L. (1966) Insects of the Galápagos Islands. Proceedings of the California Academy of Sciences Fourth Series 33(7): 113-196.
  • 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.

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This page should be cited as follows:

"Galapagos Species Database, Stomion obesum", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=6966. Accessed 31 October 2026.