Charles W. O'Brien
Charlie O'Brien; C.W. O'Brien; Charles William O'Brien; O'Brien
March 27, 1933 – August 10, 2019
entomologist, scientific collector
American entomologist
- 22,827 specimens collected from at least 47 countries
- 27,676 specimens identified from at least 74 countries
- 1,928 specimens used in 80 works
Progress
Collected From
- United States 9,318
- Mexico 6,173
- Honduras 1,961
- Panama 682
- Dominican Republic 453
- India 443
- Guatemala 417
- Costa Rica 348
- Nicaragua 290
- Belize 252
- Chile 205
- Argentina 170
- Brazil 145
- Australia 131
- Bolivia 102
- France 100
- Uruguay 97
- Puerto Rico 95
- Saint Lucia 93
- Pakistan 85
- Canada 60
- Taiwan 60
- Venezuela 56
- Dominica 46
- Barbados 40
- Grenada 38
- El Salvador 38
- Malaysia 32
- Jamaica 28
- Martinique 25
- Peru 23
- Guadeloupe 21
- South Africa 20
- Paraguay 18
- Ecuador 15
- Thailand 14
- Suriname 11
- Solomon Islands 8
- Trinidad and Tobago 7
- Saint Vincent and the Grenadines 6
- New Zealand 6
- Bahamas 4
- Namibia 4
- Papua New Guinea 1
- Virgin Islands, U.S. 1
- Japan 1
- Antarctica 1
Identified From
- United States 9,272
- Mexico 8,884
- Panama 2,096
- Honduras 2,083
- Costa Rica 1,183
- India 980
- Guatemala 544
- Australia 411
- Nicaragua 309
- Belize 245
- Puerto Rico 214
- Brazil 177
- Chile 145
- Uruguay 127
- Dominican Republic 109
- Pakistan 91
- Cayman Islands 80
- Canada 69
- Taiwan 58
- Bolivia 57
- El Salvador 49
- Dominica 48
- Venezuela 45
- Saint Lucia 40
- Peru 33
- Malaysia 31
- Argentina 29
- Ecuador 24
- Guadeloupe 19
- Jamaica 18
- Colombia 13
- Bahamas 13
- Paraguay 10
- Papua New Guinea 9
- Italy 9
- Grenada 8
- French Guiana 8
- Indonesia 6
- Solomon Islands 5
- Saint Vincent and the Grenadines 5
- Japan 5
- Namibia 5
- Guyana 5
- Vietnam 4
- Thailand 4
- Congo 3
- Cuba 3
- South Africa 3
- United States Minor Outlying Islands 3
- Trinidad and Tobago 2
- Seychelles 2
- China 2
- South Korea 2
- Philippines 2
- New Zealand 2
- Burundi 1
- Kenya 1
- Morocco 1
- Côte d'Ivoire 1
- Ghana 1
- Turkmenistan 1
- Iraq 1
- United Kingdom 1
- Gabon 1
- Portugal 1
- Mali 1
- French Polynesia 1
- Kiribati 1
- Maldives 1
- Zimbabwe 1
- Congo, The Democratic Republic of the 1
- Switzerland 1
- Sweden 1
- Madagascar 1
Dates Collected
- 1855 – 1860 1
- 1870 – 1875 1
- 1930 – 1935 1
- 1945 – 1950 1
- 1950 – 1955 7
- 1955 – 1960 595
- 1960 – 1965 697
- 1965 – 1970 1,292
- 1970 – 1975 10,594
- 1975 – 1980 2,628
- 1980 – 1985 2,295
- 1985 – 1990 1,422
- 1990 – 1995 507
- 1995 – 2000 934
- 2000 – 2005 157
- 2005 – 2010 803
- 2010 – 2015 112
- 2015 – 2020 4
Dates Identified
- 1945 – 1950 1
- 1950 – 1955 4
- 1955 – 1960 4
- 1960 – 1965 23
- 1965 – 1970 199
- 1970 – 1975 4,345
- 1975 – 1980 3,066
- 1980 – 1985 2,759
- 1985 – 1990 926
- 1990 – 1995 492
- 1995 – 2000 3,368
- 2000 – 2005 1,717
- 2005 – 2010 1,774
- 2010 – 2015 4,236
- 2015 – 2020 351
- 2020 – 2024 214