Various investigators have proposed that insects are attracted to the carnivorous Sarracenia pitcher plants by color, nectar, and scent. Mutant pitcher plants exist which lack the ability to produce reddish-purple pigment due to a recessive allele blocking a late stage of anthocyanin biosynthesis.  Normal wild-type plants of Sarracenia jonesii  produce only cyanidin and thus the role of anthocyanin in capturing insects may be assesed through comparative studies of insect captures between wild-types and mutants.  We raised both wild-type and mutant plants from seed and measured pitcher height, mouth width, and mass of insect captures in the 3 year old seedlings.  We found that pitcher height and mass of insects captured by mutants was significantly greater than wild-type while there was no significant difference in mouth width.