Efeitos da temperatura no desenvolvimento de Supputius cincticeps (Stäl) (Heteroptera: Pentatomidae) alimentado com larvas de Musca domestica L
Development time, survival and thermal requirements of the pentatomid predator Supputius cincticeps (Stäl) were studied at constant temperatures of 15, 18, 20, 23, 25, 28, 30, and 33°C, relative humidity of 70 ± 10% and a 14L:10D photoperiod. Time required for development from egg to adult ranged fr...
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Veröffentlicht in: | Anais da Sociedade Entomológica do Brasil 1999, Vol.28 (1) |
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Zusammenfassung: | Development time, survival and thermal requirements of the pentatomid predator Supputius cincticeps (Stäl) were studied at constant temperatures of 15, 18, 20, 23, 25, 28, 30, and 33°C, relative humidity of 70 ± 10% and a 14L:10D photoperiod. Time required for development from egg to adult ranged from 27.7 (30°C) to 121 days (15°C) for individuals that originated males, and from 30.3 (28°C) to 114.0 days (15°C) to those that originated females. At 33°C the nymphs did not hatch. Egg survival ranged from 23.5 (30°C) to 74.6% (25°C). Nymphal survival was highest at moderate temperatures, ranging from 3% (15°C) to 56% (20°C). Immature had highest survival at 20°C. Lower developmental threshold temperatures for egg, nymphal development and immature phases were 10.7, 11.0, and 12.0°C for individuals that originated males, and 10.0, 12.0 and 8.9°C for those that originated females. Thermal constants for egg, nymphal development and immature phases were 84.6, 410.7 and 440.1 degree-days, and 88.2, 440.1 and 643.1 degree-days, respectively, for individuals that originated males and females.
O desenvolvimento, a sobrevivência e as exigências térmicas do pentatomídeo predador Supputius cincticeps (Stäl) foram estudados às temperaturas de 15, 18, 20, 23, 25, 28, 30 e 33°C, umidade relativa de 70 ± 10% e fotofase de 14 horas. O período de ovo a adulto variou de 27,7 (30°C) a 121,0 dias (15°C) para indivíduos que originaram machos, e de 30,3 (28°C) a 114,0 dias (15°C) para os que originaram fêmeas. A 33°C não ocorreu eclosão de ninfas de S. cincticeps. A sobrevivência de S. cincticeps na fase de ovo variou de 23,5 (30°C) a 74,6% (25°C). A sobrevivência ninfal de S. cincticeps foi maior a temperaturas moderadas, variando de 3 (15°C) a 56% (20°C). A sobrevivência da forma imatura foi maior a 20°C. As temperaturas bases para ovo, desenvolvimento ninfal e forma imatura foram de 10,7, 11,0 e 12,0°C para indivíduos que originaram machos, e de 10,0, 12,0 e 8,9°C para os que originaram fêmeas. As constantes térmicas para essas fases foram de 84,6, 410,7 e 440,1 graus-dias, e 88,2, 440,1 e 643,1 graus-dias, respectivamente, para indivíduos que deram origem a machos e fêmeas. |
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ISSN: | 0301-8059 |