- 169 specimens collected from at least 5 countries
- 7 specimens identified from at least 2 countries
- 3 specimens used in 3 works
Progress
Collected From
- Germany 145
- Switzerland 19
- Belgium 2
- Russian Federation 1
- Italy 1
Dates Collected
- 1850 – 1855 1
- 1860 – 1865 29
- 1865 – 1870 4
- 1870 – 1875 1
- 1880 – 1885 3
- 1885 – 1890 2
- 1890 – 1895 4
- 1895 – 1900 64
- 1900 – 1905 34
- 1905 – 1910 19
- 1910 – 1915 4
- 1920 – 1925 1