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Adult Longevity
Total
Preoviposition
Oviposition
Wolcott (1936) gave 160 and 123 days as mean longevity of 13 and 16 females and males respectively, with at least one living up to 336 days. This interval included time in a quiescent period between eclosion from the pupa and emergence from the soil. The actual time above ground was quite a bit shorter especially for the male (less than 2 months) compared to the female (over 4 months). He reported 3 to 7 days preoviposition period between female emergence from the soil and initiation of egg laying. Beavers (1982) reported female longevity on artificial diet as 147 ± 17 days compared to 135 ± 22 for males. He mentioned no quiescent period but observed a 22 ± 3 day preoviposition period following eclosion from the pupa. The discrepancy in preoviposition periods is evidently due to the greater maturity of Walcott's weevils as they emerged from the ground compared to Beavers (1982) as they eclosed from the pupae. |
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