1953
DOI: 10.1007/bf01988189
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Het optreden van plaatselijke rassen bij Helopeltis antonii Sign. op Java

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“…Descriptions and illustrations of the nymphal instars are provided by Ambika & Abraham (1979) for H. antonii and Miller (1941) for H. theivora. The rate of larval development is affected by climatic factors and/or rearing conditions such as temperature and relative humidity (Betrem, 1953), as well as the quality of the food source (Awang et al, 1988). Most reported nymphal lifespans (first instar through fifth instar) are in the range of 9-19 days (Ambika & Abraham, 1979;Devasahayan, 1985;Miller, 1941;Smith, 1973;Tan, 1974a), but much longer periods have been reported for October-December populations of H. bradyi (27-43 days) and H. cinchonae (30-54 days) reared on tea in the Cameron Highlands (Lever, 1949), December/ January populations of H. theivora (25-39 days) on tea in north-east India (Das, 1984), and for H. antonii (17-28 days) raised on cashew in Bangalore, India (Babu et al, 1983).…”
Section: Literature Reviewmentioning
confidence: 99%
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“…Descriptions and illustrations of the nymphal instars are provided by Ambika & Abraham (1979) for H. antonii and Miller (1941) for H. theivora. The rate of larval development is affected by climatic factors and/or rearing conditions such as temperature and relative humidity (Betrem, 1953), as well as the quality of the food source (Awang et al, 1988). Most reported nymphal lifespans (first instar through fifth instar) are in the range of 9-19 days (Ambika & Abraham, 1979;Devasahayan, 1985;Miller, 1941;Smith, 1973;Tan, 1974a), but much longer periods have been reported for October-December populations of H. bradyi (27-43 days) and H. cinchonae (30-54 days) reared on tea in the Cameron Highlands (Lever, 1949), December/ January populations of H. theivora (25-39 days) on tea in north-east India (Das, 1984), and for H. antonii (17-28 days) raised on cashew in Bangalore, India (Babu et al, 1983).…”
Section: Literature Reviewmentioning
confidence: 99%
“…Further, the variation in the genitalic structures of males and females could not be correlated with observed differences in colour and external morphology, which tend to be continuously variable. Questions regarding the status of H. bradyi and H. romundei as distinct species were voiced by several previous workers including Miller (1941) and Betrem (1953).…”
mentioning
confidence: 99%