NATURAL HISTORY · CATALOGUE RECORD
Illinois Chorus Frog
Pseudacris illinoensis Smith, 1951
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
The Illinois chorus frog (Pseudacris illinoensis) is a species of chorus frog that lives in scattered, restricted habitat ecosystems in the states of Arkansas, Illinois, and Missouri. It was published by Smith in 1951. Its life cycle is little known, its isolated populations are increasingly restricted by agricultural drainage, and it is listed as a threatened subspecies. It is often referred to as a subspecies of P. streckeri. Collins recognized it as its own species which was followed by ASW6.0 and Amphibiaweb on the basis of its diagnosability from Pseudacris streckeri and its allopatry. The IUCNredlist 2013.2 has not incorporated this taxonomic split.
Wikipedia contributors, Illinois chorus frog; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:01:37.681726+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Pseudacris illinoensis Smith, 1951
- Name authority
- Smith, 1951
- Common name
- Illinois Chorus Frog
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Amphibia
- Order
- Anura
- Family
- Hylidae
- Genus
- Pseudacris
- 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.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAmphibia
- orderAnura
- familyHylidae Rafinesque, 1815
- genusPseudacris Fitzinger, 1843
- speciesPseudacris illinoensis Smith, 1951
Close classified relatives
These entries share the source’s genus, Pseudacris. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| California Chorus FrogPseudacris cadaverina (Cope, 1866) | HylidaeChordata | Accepted speciesRecorded extant |
| Southeastern Chorus FrogPseudacris feriarum (Baird, 1854) | HylidaeChordata | Accepted speciesRecorded extant |
| New Jersey Chorus FrogPseudacris kalmi Harper, 1955 | HylidaeChordata | Accepted speciesRecorded extant |
| Ornate Chorus FrogPseudacris ornata (Holbrook, 1836) | HylidaeChordata | Accepted speciesRecorded extant |
| Northern Pacific TreefrogPseudacris regilla (Baird & Girard, 1852) | HylidaeChordata | Accepted speciesRecorded extant |
| Brimley's Chorus FrogPseudacris brimleyi Brandt & Walker, 1933 | HylidaeChordata | Accepted speciesRecorded extant |
| Spotted Chorus FrogPseudacris clarkii (Baird, 1854) | HylidaeChordata | Accepted speciesRecorded extant |
| Spring PeeperPseudacris crucifer (Wied-Neuwied, 1838) | HylidaeChordata | Accepted speciesRecorded extant |
| Cajun Chorus FrogPseudacris fouquettei Lemmon, Lemmon, Collins & Cannatella, 2008 | HylidaeChordata | Accepted speciesRecorded extant |
| Boreal Chorus FrogPseudacris maculata (Agassiz, 1850) | HylidaeChordata | Accepted speciesRecorded extant |
| Southern Chorus FrogPseudacris nigrita (LeConte, 1825) | HylidaeChordata | Accepted speciesRecorded extant |
| Little Grass FrogPseudacris ocularis (Holbrook, 1838) | HylidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Pseudacris triseriata illinoensis Smith, 1951 Smith, 1951 | synonym |
| Pseudacris triseriata illinoisensis Smith, 1951 Smith, 1951 | synonym |
| Pseudacris streckeri illinoensis Smith, 1951 Smith, 1951 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
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.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=662726 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:4NH9L. Classification follows source parent identifiers. English common names may vary by region.