- 11,422 specimens collected from at least 8 countries
- 488 specimens identified from at least 8 countries
- 770 specimens used in 25 works
Progress
Collected From
- United States 10,624
- Mexico 610
- Canada 125
- Jamaica 47
- Cuba 7
- Iceland 2
- Papua New Guinea 1
- Costa Rica 1
Identified From
- United States 285
- Mexico 185
- Jamaica 5
- Solomon Islands 5
- Ecuador 3
- Guatemala 2
- French Polynesia 2
- Canada 1
Dates Collected
- 1875 – 1880 1
- 1885 – 1890 10
- 1890 – 1895 11
- 1895 – 1900 40
- 1900 – 1905 23
- 1905 – 1910 71
- 1910 – 1915 238
- 1915 – 1920 3,139
- 1920 – 1925 3,066
- 1925 – 1930 1,203
- 1930 – 1935 1,217
- 1935 – 1940 377
- 1940 – 1945 12
- 1945 – 1950 6
- 1950 – 1955 4
- 1955 – 1960 9
- 1960 – 1965 3
- 1965 – 1970 1
- 1975 – 1980 1
- 1980 – 1985 1
- 1985 – 1990 1
- 1990 – 1995 1
- 1995 – 2000 2
- 2000 – 2005 158
- 2005 – 2010 192
- 2010 – 2015 544
- 2015 – 2020 584
Dates Identified
- 1900 – 1905 2
- 1910 – 1915 1
- 1915 – 1920 21
- 1920 – 1925 8
- 1925 – 1930 18
- 1980 – 1985 5
- 2010 – 2015 9