title: New records of pyrrolizidine alkaloid-feeding insects. Hemiptera and Coleoptera on Senecio brasiliensis.
abstract: New records are reported for a Hemipteran (Largus rufipennis) and a Coleopteran (Chauliognathus fallax) feeding on Senecio brasiliensis (Asteraceae) and sequestering pyrrolizidine alkaloids (PAs). Both insects are warningly colored and rejected by predators.
authors.affiliation: Instituto de Química, UNICAMP, Caixa Postal 6154, 13083-970, Campinas, São Paulo, Brazil
authors.initials: CF
authors.lastname: Klitzke
authors.initials: JR
authors.lastname: Trigo