Ciclos de vida dos polinizadores do cacaueiro Forcipomyia spp. (Diptera, Ceratoponidae) e algumas anotacoes sobre of comportamento das larvas no laboratorio
The embryonic and postembryonic development of the pollinating midges Forcipomyia (Euforcipomyia) spatulifera Saunders, F. (E.) blantoni Soria and Bystrak, and the nonpollinating midges F. (F.) genualis (Loew), F. (F.) poulaineae Ingram an Macfie, and F. sp. 1, subgenus near Lepidohelea have been studied in detail. The eggs developed in about 4, 4, 4, 4, and 3 days respectively; the larvae took 17, 14, 19, 16 and 10 days respectively; the pupae took 4, 3, 4, 4 and 3 days respectively; and the adults lived 12, 13, 14, 16 and 12 days respectively. The complete fertile life cycles took about 37, 34, 41, 40 and 28 days respectively. The potential number of generations per year were 10, 11, 9, 9 and 12 respectively. The midge Forcipomyia (Microhelea) fuliginosa (meigen) could not be successfully cultured in the laboratory. Observations on larval feeding habits in laboratory cultures are briefly discussed. During the course of the investigation it was found that Aphelenchoides sp. (Nematoda), the common glass house mite, Tyrophagus putrescentiae (Schrank) and a few collembolans were contaminants of the cultures. They were isolated from the innocula used to feed the midges. It was concluded that the so-called "Hernandez rearing method" is a successful one to rear the midges, but some improvements are still desirable in order to avoid mortalities during the egg and adult periods
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| Format: | biblioteca |
| Published: |
1975
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| Subjects: | THEOBROMA CACAO, FORCIPOMYIA, POLINIZADORES, CICLO VITAL, LARVAS, |
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