RESUMO
Larvae of Anicla infecta (Ochsenheimer, 1816) (Noctuidae) feed upon many grasses and may be harmful to cereals and fodder of economic importance. This study was developed aiming to contribute to knowledge of the biology of this species. The rearing was done in an environmental chamber with the following settings: temperature of 25 ± 1ºC; relative humidity of 70% FONT FACE=Symbol>± /FONT> 10%, and photoperiod of L14: D10. The larvae fed on ryegrass, Lolium multiflorum Lam. The results express the mean and standard error for the length of every stage in days. For each stage we observed the following time of development: egg 3.2 FONT FACE=Symbol>± /FONT> 0.09; larvae 18.7 FONT FACE=Symbol>± /FONT> 0.07; pre-pupae 3.3 FONT FACE=Symbol>± /FONT> 0.04; pupae 12.6 FONT FACE=Symbol>± /FONT> 0.14; and adult longevity was 12.1 FONT FACE=Symbol>± /FONT> 1.03. Also the pre-egg-laying period was 4.4 FONT FACE=Symbol>± /FONT> 0.59; the egg-laying period was 8.1 FONT FACE=Symbol>± /FONT> 0.84; and the post-egg-laying period was 0.3 FONT FACE=Symbol>± /FONT> 0.14. The mean number of egg-laying cycles per female was 6.7 FONT FACE=Symbol>± /FONT> 0.73; that of eggs per cycle was 77.5 FONT FACE=Symbol>± /FONT> 4.37; and total eggs per female was 521.4 FONT FACE=Symbol>± /FONT> 47.36.
As lagartas de Anicla infecta (Ochsenheimer, 1816) alimentam-se de gramíneas, podendo tornar-se nocivas a cereais e forrageiras de importância econômica. A fim de contribuir com informações para o conhecimento de sua biologia, foi realizado um experimento com criação em câmara climatizada a 25 FONT FACE=Symbol>± /FONT> 1ºC; 70% FONT FACE=Symbol>± /FONT> 10% UR (umidade relativa) e fotofase de 14 h. As larvas foram alimentadas com azevém, Lolium multiflorum Lam. Os resultados expressos pela média e pelo respectivo erro-padrão para os períodos de cada fase, em dias, foram: ovo 3,2 FONT FACE=Symbol>± /FONT> 0,09; lagarta 18,7 FONT FACE=Symbol>± /FONT> 0,07; pré-pupa 3,3 ± 0,04; pupa 12,6 FONT FACE=Symbol>± /FONT> 0,14; e adulta: longevidade 12,1 FONT FACE=Symbol>± /FONT> 1,03, pré-oviposição 4,4 FONT FACE=Symbol>± /FONT> 0,59, oviposição 8,1 FONT FACE=Symbol>± /FONT> 0,84 e pós-oviposição 0,3 FONT FACE=Symbol>± /FONT> 0,14. O número médio de posturas por fêmea foi 6,7 FONT FACE=Symbol>± /FONT> 0,73, ovos por postura, 77,5 FONT FACE=Symbol>± /FONT> 4,37 e ovos por fêmea, 521,4 FONT FACE=Symbol>± /FONT> 47,36.