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O objetivo deste trabalho foi estudar aspectos biológicos de Halysidota pearsoni Watson, 1980 (Lepidoptera: Arctiidae). Lagartas de H. pearsoni foram criadas com folhas de Morus alba L. em potes plásticos até a fase de pupa. Dez casais desse lepidóptero foram individualizados em gaiolas para obtenção de ovos à temperatura de 25 ± 2 °C, umidade relativa de 60 ± 10% e fotofase de 12 horas. Halysidota pearsoni teve período de oviposição de 3,5 ± 0,17 com 141,00 ± 9,18 ovos por fêmea, período de incubação de 7,5 ± 0,17 dias e viabilidade de ovos de 53,34 ± 5,24%. A fase larval de H. pearsoni teve seis estádios, com duração total de 28 dias, viabilidade de 91,78 ± 3,24%. A duração e a viabilidade dos períodos pré-pupal e pupal de H. pearsoni foram, respectivamente, de 7,0 ± 00 e 19,39 ± 0,74 dias e de 70,15 ± 5,63 e 93,62 ± 3,60%. O peso médio de suas pupas foi de 464,17 ± 7,70 mg e a razão sexual e de 0,45. A longevidade (dias) de machos e fêmeas de H. pearsoni, com folhas de M. alba, foi de 7,40 ± 0,34 e 9,50 ± 0,45, respectivamente. The objective of this work was to study biological aspects of Halysidota pearsoni Watson, 1980 (Lepidoptera: Arctiidae). Caterpillars of H. pearsoni were fed with leaves of Morus alba L. in plastic pots until pupation. Ten pairs of this insect were individualized in cages for obtain eggs at the temperature of 25 ± 2° C, relative humidity of 60 ± 10% and photo phase of 12 hours. Halysidota pearsoni had an oviposition period of 3.5 ± 0.17 with 141.00 ± 9.18 eggs per female; an incubation period of 7.5 ± 0.17 days and an egg viability of 53.34 ± 5.24%. The larva stage of H. pearsoni had six instars with a total duration of 28 days and viability of 91.78 ± 3.24%. The duration and the viability of the pre-pupa and pupa periods of H. pearsoni was 7.0 ± 0.0 and 19.39 ± 0.74 days and 70.15 ± 5.63 and 93.62 ± 3.60% respectively. The pupae mean weight was 464.17 ± 7.70 mg and sex rate 0.45. The longevity (days) of males and females of H. pearsoni was 7.40 ± 0.34 and 9.50 ± 0.45, respectively

Aspectos biológicos de Halysidota pearsoni (Lepidoptera: Arctiidae) com folhas de amoreira