- 45 specimens collected from at least 3 countries
- 32 specimens identified from at least 2 countries
- 14 specimens used in 2 works
Progress
Collected From
- United States 24
- Puerto Rico 17
- Canada 4
Identified From
- United States 21
- Canada 11
Dates Collected
- 1900 – 1905 3
- 1905 – 1910 4
- 1910 – 1915 1
- 1915 – 1920 10
- 1920 – 1925 11
- 1925 – 1930 3
- 1930 – 1935 3
- 1935 – 1940 8