Pupal Period Affects Calling Behavior of the Wheat Moth, Pseudaletia sequax (Lepidoptera: Noctuidae)

Authors

  • Ângela A. Almeida,

    1. Departamento de Biologia Animal, Setor Entomologia, Laboratório de Semioquímicos, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
    Search for more papers by this author
  • Eraldo R. Lima,

    1. Departamento de Biologia Animal, Setor Entomologia, Laboratório de Semioquímicos, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
    Search for more papers by this author
  • Ronaldo Reis Jr

    1. Departamento de Biologia Animal, Setor Entomologia, Laboratório de Semioquímicos, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
    Search for more papers by this author

Ângela A. Almeida, Departamento de Biologia Animal, Laboratório de Semioquímicos, Universidade Federal de Viçosa, Avenida Ph. Rolfs s/n, 36570-000 Viçosa, Minas Gerais, Brazil. E-mail: aaamoth@gmail.com

Abstract

The effects of pupal period and age on calling behavior of virgin females of Pseudaletia sequax were determined. Calling behavior of groups of females of similar age of pupation was observed every 10 min for six calling days. Females were considered calling when they assumed a characteristic position: wings and abdomen elevated, displaying the ovipositor and presumably releasing pheromone. Calling behavior was discontinuous. Females with a shorter pupal period took more time to start calling than females with a longer pupal period and called for a longer period. On the first day of calling, females took more time to initiate calling, on average during the seventh hour of the scotophase, whereas on the second day of calling, most females initiated calling during the fifth hour of the scotophase. On subsequent days of calling, the average time to initiate calling changed to the fourth hour of the scotophase. The mean time of calling per day decreased significantly with the number of days since first calling, and the mean number of calling bouts increased with days since first calling.

Ancillary