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Herbivory on bracken (Pteridium spp.) by Bolax palliata Burmeister (Coleoptera: Scarabaeidae), a poliphagous beetle of the Venezuelan Andes

Herbivoría en el helecho macho (Pteridium spp.) por Bolax palliata Burmeister (Coleoptera: Scarabaeidae), un escarabajo polífago de los Andes venezolanos

Herbivore attack by Bolax palliata Burmeister is reported on two sympatric bracken species: Pteridium caudatum (L.) Maxon and P. arachnoideum (Kaulf.). Laboratory and field observations revealed a preference for the last of the two species. Available phytochemical information suggests it could be based on differences in concentration of condensed tannins.

Feeding preference; Neotropical Rutelinae; Geniatini; condensed tannin


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