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
| 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 |