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Flowers and insects: lists of visitors to four hundred and fifty-three flowers. Carlinville, IL, USA, C. Robertson.","source_plant":"Eupatorium purpureum"},{"animal":"Exoprosopa fasciata","dataset":"Robertson 1929 / GloBI mirror","group":"flies","interaction":"flower_visit","location":"Carlinville, Illinois, USA","pollination_confirmed":false,"reference":"Robertson, C. 1929. Flowers and insects: lists of visitors to four hundred and fifty-three flowers. Carlinville, IL, USA, C. Robertson.","source_plant":"Eupatorium purpureum"},{"animal":"Volucella vesiculosa","dataset":"Robertson 1929 / GloBI mirror","group":"flies","interaction":"flower_visit","location":"Carlinville, Illinois, USA","pollination_confirmed":false,"reference":"Robertson, C. 1929. Flowers and insects: lists of visitors to four hundred and fifty-three flowers. Carlinville, IL, USA, C. 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