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Destructive Pygmy Rice Rat

Oligoryzomys destructor (Tschudi, 1844)

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Open encyclopedia reference

Oligoryzomys destructor, also known as Tschudi's colilargo or the destructive pygmy rice rat, is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found along the eastern Andes from southern Colombia, through Ecuador, Peru, and Bolivia into northern Argentina. Its karyotype has 2n = 60 and FNa = 76.

Wikipedia contributors, Oligoryzomys destructor; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T12:42:57.446198+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Oligoryzomys destructor (Tschudi, 1844)
Name authority
(Tschudi, 1844)
Common name
Destructive Pygmy Rice Rat
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Cricetidae
Genus
Oligoryzomys
Extinction status
Recorded extant

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderRodentia Bowdich, 1821
  12. suborderMyomorpha Brandt, 1855
  13. superfamilyMuroidea Illiger, 1811
  14. familyCricetidae Fischer, 1817
  15. subfamilySigmodontinae Wagner, 1843
  16. genusOligoryzomys Bangs, 1900
  17. speciesOligoryzomys destructor (Tschudi, 1844)

Close classified relatives

These entries share the source’s genus, Oligoryzomys. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Chacoan ColilargoOligoryzomys chacoensis (Myers & Carleton, 1981)CricetidaeChordataAccepted speciesRecorded extant
Delta Pygmy Rice RatOligoryzomys delticola (Thomas, 1917)CricetidaeChordataAccepted speciesRecorded extant
Brazilian ColilargoOligoryzomys eliurus (Wagner, 1845)CricetidaeChordataAccepted speciesRecorded extant
Fulvous ColilargoOligoryzomys fulvescens (Saussure, 1860)CricetidaeChordataAccepted speciesRecorded extant
Oligoryzomys utiaritensis Allen, 1916CricetidaeChordataAccepted speciesRecorded extant
Sprightly ColilargoOligoryzomys vegetus (Bangs, 1902)CricetidaeChordataAccepted speciesRecorded extant
St. Vincent ColilargoOligoryzomys victus (Thomas, 1898)CricetidaeChordataAccepted speciesRecorded extinct
Andean ColilargoOligoryzomys andinus (Osgood, 1914)CricetidaeChordataAccepted speciesRecorded extant
Sandy ColilargoOligoryzomys arenalis (Thomas, 1913)CricetidaeChordataAccepted speciesRecorded extant
Brenda's ColilargoOligoryzomys brendae Massoia, 1998CricetidaeChordataAccepted speciesRecorded extant
Flavescent ColilargoOligoryzomys flavescens (Waterhouse, 1837)CricetidaeChordataAccepted speciesRecorded extant
Fornes' ColilargoOligoryzomys fornesi (Massoia, 1973)CricetidaeChordataAccepted speciesRecorded extant

Browse 593 records assigned to Cricetidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Oryzomys stolzmanni Thomas, 1894 Thomas, 1894synonym

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

South America

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=633203 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:496XK. Classification follows source parent identifiers. English common names may vary by region.