Galapagos Species Database

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

Symploce pallens (Stephens, 1835)

Cucaracha, Smooth Cockroach

Scavenger; a household pest species; January- November; from littoral zone to humid forest at 650 m; abundant in arid zone around CDRS.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Arthropoda

Class
Insecta

Order
Blattodea

Superfamily
Blaberoidea

Family
Blattellidae

Genus
Symploce

Species
pallens

Taxon category: Accepted

Syn.: Symploce lita, S. hospes

Origin: Introduced - established

Introduction

Year of first record: 1916

Mode of introduction: Accidental

Introduction Pathway: Stowaway

Subpathway: Hitchhiker on transport vehicles/cargo

Introduced status: Naturalized

Invasive status: Unlikely to become invasive

Distribution

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

Distribution: Bartolomé, Camaño, Fernandina, Floreana, Genovesa, Isabela, Marchena, Pinta, San Cristóbal, Santa Cruz, Santa Fé, Santiago

References

  • McMullen, C.K. (2011) Pollination of the heterostylos Galápagos native, Cordia lutea (Boraginaceae) Plant Syst Evol (2012) 298:569-579
  • Peck, S.B. (1996) The arthropods of the allobiosphere (barren lava flows) of the Galapagos islands, Ecuador Noticias de Galápagos 56: 9-12.
  • Peck, S.B. (1996) Diversity and distribution of the orthopteroid insects of the Galápagos Islands, Ecuador. Canadian Journal of Zoology 74: 1497-1510.
  • Peck, S.B. Roth, L.M. (1992) Cockroaches of the Galápagos Islands, Ecuador, with descriptions of three new species (Insecta: Blattodea). Canadian Journal of Zoology 70(12): 2202-2217.
  • Peck, S.B. Heraty, J., Landry, B. & Sinclair, B.J. (1998) Introduced insect fauna of an oceanic archipelago: The Galápagos Islands, Ecuador. Am. Entomol. 44: 218-237.
  • 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.

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, Symploce pallens", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=6979. Accessed 31 October 2026.