Abstract
AbstractThe grubs and adults of the lesser meal worm, Alphitobius diaperinus (Panz.) were found gregariously feeding on the eggs and larvae of Corcyra cephalonica St. for the first time in India. The developmental period from egg to adult was completed in 70 to 89 days at 27 ± 1 °C and 65 ± 5% R. H. The mean egg, larval and pupal periods were 6.6, 68.8 and 8.4 days, respectively. The longevity of most of the beetles was between 14 and 16 months and they laid fertile eggs ranging between 1059 to 1874 per female. Some of the beetles are found to survive beyond 16 months and lay very few eggs. The beetles remained active in the laboratory throughout the year with a peak during summer season.ZusammenfassungErnährungspotential und Biologie des Kleinen Mehlkäfers, Alphitobius diaperinus (Panz.) (Col., Tenebrionidae), eines Prädators bei Corcyra cephalonica St. (Lep., Pyralidae)Die Larven und Adulten von A. diaperinus wurden erstmals in Indien als Prädatoren von Eiern und Larven der Pyralide C. cephalonica festgestellt. Die Entwicklungszeit vom Ei bis zum Käfer betrug bei 27° C und 65% rel. F. 70 bis 89 Tage. Die mittlere Entwicklungsdauer der Eier, Larven und Puppen betrug 6,6–68,8 und 8,4 Tage. Die Lebensdauer der meisten Käfer lag zwischen 14 und 16 Monaten. Während dieser Zeit legten die Weibchen maximal 1874 Eier ab. Einige der Käfer lebten länger als 16 Monate und legten nur wenige Eier. Die Käfer blieben im Labor während des ganzen Jahres aktiv bei einem Aktivitätsmaximum im Sommer.
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