Galapagos Species Database

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

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Darwinysius marginalis (Dallas, 1852)

Chinche de la semilla, Seed bugs, milkweed bugs

Seed predator; host plants: Portulaca species, Euphorbia viminea; arid to pampa zone and agricultural zone; March-September.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Arthropoda

Class
Insecta

Order
Hemiptera

Suborder
Heteroptera

Superfamily
Lygaeoidea

Family
Lygaeidae

Section
Metrargini

Genus
Darwinysius

Species
marginalis

Taxon category: Accepted

Syn.: Cymus galapagensis

Origin: Endemic

Distribution

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

Distribution: Bartolomé, Beagle, Daphne Mayor, Fernandina, Floreana, Isabela, Mosquera, Pinta, Pinzón, Rabida, Santa Cruz, San Cristobal, Santiago, Sombrero Chino.

References

  • Ashlock, P.D. (1972) The Lygaeidae of the Galápagos Islands (Hemiptera: Heteroptera). Proc. Calif. Acad. Sci., Forth Series 39(8): 87-103.
  • Froeschner, R.C. (1985) Synopsis of the Heteroptera or True Bugs of the Galápagos Islands. Smithsonian Contributions to Zoology 407: 1-84.
  • Linsley, E.G. (1977) Insects of the Galápagos (Supplement). Occassional Papers of the Califoria Academy of Sciences 125: 1-50.
  • Peck, J.I. (1893) Scientific Results of Explorations by the U.S. Fish Commission Steamer Albatross. No. XXVI - Report on the Pteropods and Heteropods collected by the U.S. Fish Commission Steamer Albatross during the voyage from Norfolk, VA to San Francisco, Cal., 1887-88. Proceedings of the United States National Museum 16: 451-471.
  • Peck, S.B. (2001) Smaller Orders of Insects of the Galápagos Islands, Ecuador: Evolution, Ecology, and Diversity. NRC Research Press, Ottawa, Ontario, Canada, 278 pp.

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This page should be cited as follows:

"Galapagos Species Database, Darwinysius marginalis", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=5783. Accessed 16 October 2026.