New records, host, and plant symptoms description of the recently reported Delia sanctijacobi (Bigot) (Diptera: Anthomyiidae) in Brazil

Lucas Roberto Pereira Gomes; Leandro Delalibera Geremias; Maria Aparecida Cassilha Zawadneak; Juracy Caldeira Lins-Junior; Paulo Antônio  de Souza Gonçalves; Claudio José  Barros de Carvalho

New records, host, and plant symptoms description of the recently reported Delia sanctijacobi (Bigot) (Diptera: Anthomyiidae) in Brazil

2023

Delia Robineau-Desvoidy, composed of flies popularly known as root maggot flies, is a diverse genus with unclear delimitation. It comprises polyphagous species and some important agricultural pests. Delia sanctijacobi (Bigot) is native to South America, occurring in Argentina, Brazil, Chile, Peru, and Uruguay; the larvae are commonly known as “potato worms” and have been misidentified as Delia platura (Meigen) in Brazil. Delia sanctijacobi attacks the seeds and seedlings of several plants of commercial importance. We present new geographic records of D. sanctijacobi in Brazil and describe the damage caused by their larvae on commercial bean and onion in Paraná and Santa Catarina between 2019-2022. Delia Robineau-Desvoidy, composed of flies popularly known as root maggot flies, is a diverse genus with unclear delimitation. It comprises polyphagous species and some important agricultural pests. Delia sanctijacobi (Bigot) is native to South America, occurring in Argentina, Brazil, Chile, Peru, and Uruguay; the larvae are commonly known as “potato worms” and have been misidentified as Delia platura (Meigen) in Brazil. Delia sanctijacobi attacks the seeds and seedlings of several plants of commercial importance. We present new geographic records of D. sanctijacobi in Brazil and describe the damage caused by their larvae on commercial bean and onion in Paraná and Santa Catarina between 2019-2022.

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