- 23,562 specimens collected from at least 4 countries
- 32,504 specimens identified from at least 9 countries
- 1,169 specimens used in 25 works
Progress
Collected From
- United States 22,481
- Canada 934
- United Kingdom 47
- Jordan 6
Identified From
- United States 30,980
- Canada 1,473
- Taiwan 20
- South Korea 12
- Costa Rica 3
- Panama 2
- Mexico 2
- Peru 1
- Argentina 1
Dates Collected
- 1890 – 1895 1
- 1905 – 1910 11
- 1910 – 1915 3
- 1920 – 1925 1
- 1935 – 1940 48
- 1940 – 1945 1
- 1955 – 1960 1
- 1965 – 1970 3
- 1970 – 1975 1
- 1975 – 1980 1
- 1980 – 1985 3
- 1985 – 1990 332
- 1990 – 1995 631
- 1995 – 2000 1,704
- 2000 – 2005 1,603
- 2005 – 2010 4,410
- 2010 – 2015 7,122
- 2015 – 2020 3,687
- 2020 – 2023 3,976
Dates Identified
- 1975 – 1980 1
- 1985 – 1990 1
- 1990 – 1995 624
- 1995 – 2000 2,399
- 2000 – 2005 5,699
- 2005 – 2010 5,082
- 2010 – 2015 8,770
- 2015 – 2020 2,767
- 2020 – 2023 5,680