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Lampropeltis triangulum (Lacépède, 1789) - Eastern Milksnake

Maps

Locality Map

Locality map for Lampropeltis triangulum (Eastern Milksnake)
Locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

County Map

County map for Lampropeltis triangulum (Eastern Milksnake)
County map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Historical Locality Map

Historical locality map for Lampropeltis triangulum (Eastern Milksnake)
Historical locality map for Lampropeltis triangulum (Eastern Milksnake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 6 March 2024.

Historical County Map

Historical county map for Lampropeltis triangulum (Eastern Milksnake)
Historical county map for Lampropeltis triangulum (Eastern Milksnake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 6 March 2024.

Ecological Drainage Locality Map

Ecological Drainage Units map for Lampropeltis triangulum (Eastern Milksnake)
Ecological Drainage Units locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Natural Divisions Locality Map

Natural Divisions locality map for Lampropeltis triangulum (Eastern Milksnake)
Natural Divisions and Sections locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Major Watersheds Locality Map

Major watersheds map for Lampropeltis triangulum (Eastern Milksnake)
Major Watersheds locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Level I Ecoregion Locality Map

Level I Ecoregions map for Lampropeltis triangulum (Eastern Milksnake)
Level I Ecoregion locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Level II Ecoregion Locality Map

Level II Ecoregions map for Lampropeltis triangulum (Eastern Milksnake)
Level II Ecoregion locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Level III Ecoregion Locality Map

Level III Ecoregions map for Lampropeltis triangulum (Eastern Milksnake)
Level III Ecoregion locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Lampropeltis triangulum (Eastern Milksnake)
Level IV Ecoregion locality map for Lampropeltis triangulum (Eastern Milksnake).
Map created 6 March 2024.

Native Status

Lampropeltis triangulum (Eastern Milksnake) is native to Missouri.

Collection Summary

Lampropeltis triangulum (Eastern Milksnake) has a total of 322 valid, non-duplicated collections representing 94 counties and 242 localities. There are a total of 121 collectors and 220 collection dates for the species. This results in a total of 239 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1857 and its most recent collection year is 2023. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 9 and November 11, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Lampropeltis triangulum (Eastern Milksnake) by county. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a county name to view more information about that county. Click on column headings to sort by that column.
County Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Adair 2 2 2 2 2 2018 2021
Andrew 1 1 2 1 1 1992 1992
Barry 4 6 4 6 6 1939 1969
Barton 1 1 1 1 1 1983 1983
Bates 2 2 1 2 2 1950 1958
Benton 1 1 1 1 1 1994 1994
Bollinger 2 2 3 2 2 1950 2020
Boone 15 19 9 16 17 1909 2023
Buchanan 1 1 1 1 1 1957 1957
Butler 2 2 5 2 2 2003 2014
Callaway 3 3 4 3 3 2003 2017
Camden 4 4 7 4 4 1978 2023
Cape Girardeau 2 2 2 2 2 1976 1996
Carroll 2 2 2 2 2 1957 2020
Carter 2 2 2 2 2 1949 1949
Cass 1 1 1 1 1 1941 1941
Cedar 1 1 2 1 1 2000 2000
Christian 1 1 1 1 1 1974 1974
Clark 1 1 1 1 1 1990 1990
Clay 4 4 2 4 4 1923 2001
Clinton 1 1 1 1 1 1961 1961
Cole 1 1 1 1 1 1983 1983
Cooper 1 1 1 1 1 1966 1966
Crawford 4 7 7 4 5 1897 2008
Dade 1 1 1 1 1 2000 2000
Dallas 2 5 3 2 2 1975 2000
Daviess 2 2 2 2 2 1940 2008
Douglas 1 1 3 1 1 2003 2003
Dunklin 3 4 5 3 3 2007 2015
Franklin 1 1 1 1 1 1934 1934
Gasconade 3 3 3 3 3 2019 2022
Gentry 1 1 2 1 1 2006 2006
Greene 3 3 4 3 3 1966 2009
Grundy 1 1 2 1 1 1964 1964
Harrison 1 1 1 1 1 2001 2001
Henry 3 3 3 2 2 2018 2018
Hickory 1 1 1 1 1 1961 1961
Holt 1 2 2 1 2 1965 1965
Howard 1 2 1 1 1
Howell 1 2 2 2 2 1906 1906
Iron 2 2 2 2 2 1981 2009
Jackson 23 44 8 28 29 1857 2018
Jasper 1 2 2 2 2 1906 1906
Jefferson 8 17 7 7 9 1895 2003
Johnson 8 14 8 11 11 1946 2018
Laclede 1 1 3 1 1 2000 2000
Lafayette 2 2 1 1 1 2006 2006
Lewis 1 1 1 1 1 2001 2001
Lincoln 3 4 3 4 4 1964 2012
Livingston 1 1 1 1 1 1983 1983
Madison 1 1 1 1 1 2013 2013
Maries 3 3 2 2 2 2000 2010
Marion 3 4 2 2 2 2001 2013
McDonald 1 1 1 1 1
Miller 3 3 4 3 3 1963 2010
Mississippi 1 1 1 1 1 2012 2012
Moniteau 3 3 5 3 3 1982 2009
Monroe 1 1 1 1 1 2018 2018
Montgomery 3 5 5 5 5 1905 2021
Morgan 2 4 1 2 2 1967 1969
New Madrid 2 2 2 2 2 1961 1961
Oregon 4 5 4 5 5 1901 2005
Osage 1 1 1 1 1 1983 1983
Ozark 2 2 7 2 2 2008 2014
Perry 3 3 4 2 3 1995 2011
Pettis 5 6 4 6 6 1940 2014
Phelps 4 4 7 3 3 1981 2012
Pike 4 4 4 4 4 1983 2002
Platte 2 2 3 2 2 1960 2018
Polk 1 1 1 1 1 2016 2016
Pulaski 1 1 1 1 1 1986 1986
Ralls 3 3 2 3 3 1971 2018
Randolph 3 3 1 3 3 2000 2023
Ray 2 2 1 2 2 1957 1961
Reynolds 1 1 1 1 1 1963 1963
Ripley 2 2 2 2 2 2007 2008
Saint Charles 2 2 2 2 2 2010 2010
Saint Clair 3 4 8 4 4 1938 2007
Sainte Genevieve 2 2 4 2 2 2014 2014
Saint Francois 1 1 1 1 1 2014 2014
Saint Louis 9 22 8 12 13 1885 2010
Saline 2 2 2 2 2 1940 2015
Scotland 1 1 1 1 1 2011 2011
Scott 1 1 1 1 1 1965 1965
Shannon 3 3 9 3 3 1964 2003
Stoddard 3 4 6 4 4 1936 2015
Stone 1 3 2 2 2 1906 1906
Taney 3 3 3 3 3 1971 2018
Texas 1 1 2 1 1 2006 2006
Warren 1 1 1 1 1
Washington 3 4 2 3 3 1909 2011
Wayne 3 4 3 3 4 1967 1967
Webster 3 3 3 3 3 1961 2005
Wright 1 1 2 1 1 2004 2004

Potential County Records

Potential counties for Lampropeltis triangulum (Eastern Milksnake). Counties are listed in descending order of their likelihood of having this species. Click on a county to view more information about that county. Click on column headings to sort by that column.
Likelihood County Rationale Ecoregion / Watershed
2 Audrain Same Level IV ecoregion, within 5 miles River Hills
2 Audrain Same Level IV ecoregion, within 5 miles Claypan Prairie
2 Caldwell Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Chariton Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Dent Same Level IV ecoregion, within 5 miles Current River Hills
2 Knox Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Macon Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Vernon Same Level IV ecoregion, within 5 miles Cherokee Plains
4 Atchison Same Level IV ecoregion, within 10 miles Missouri Alluvial Plain
4 De Kalb Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Lawrence Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Mercer Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Shelby Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Worth Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
6 Linn Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Newton Same Level IV ecoregion, within 20 miles Dissected Springfield Plateau-Elk River Hills
6 Newton Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Nodaway Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Nodaway Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Pemiscot Same Level IV ecoregion, within 20 miles Northern Holocene Meander Belts
6 Pemiscot Same Level IV ecoregion, within 20 miles St. Francis Lowlands
6 Putnam Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Schuyler Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Sullivan Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Reptilia Laurenti, 1768 - Reptiles
Order:
Squamata Oppel, 1811 - Lizards and Snakes
Suborder:
Serpentes Linnaeus, 1758 - Snakes
Family:
Colubridae Oppel, 1811 - Typical Harmless Snakes
Genus:
Lampropeltis Fitzinger, 1843 - Kingsnakes and Milksnakes
Species:
Lampropeltis triangulum (Lacépède, 1789) - Eastern Milksnake

Recent Taxonomic Synonyms

(none)