The bromeliad-eating weevil Metamasius quadrilineatus Champion is the native host of the tachinid Lixadmontia franki Wood and Cave, which is being studied as a candidate biological control agent of the Mexican bromeliad weevil, Metamasius callizona (Chevrolat), a pest of native bromeliads in Florida. Information on the reproductive biology of M. quadrilineatus was gathered in order to produce sufficient quantities of the weevil and L. franki for biological and non-target testing studies. Longevity, fecundity, and egg viability of M. quadrilineatus females on Catopsis hahnii (Baker) were studied under laboratory conditions at 21°C temperature, 70% relative humidity, and a 12 ∶ 12 hr light:dark photoperiod. Females lived an average of 17.0 ± 1.3 weeks (range = 3–29 weeks). Survivorship decreased significantly starting in week 11 and reached 48% in week 19. Females initiated oviposition 3.3 ± 0.2 weeks (mean ± standard error) after emergence. In total, 593 eggs were produced by 30 caged females in a 22-week oviposition period. Most of the egg production (83%) was obtained during weeks 3–13 after emergence. Maximum egg production of 3.3 eggs/female/week was reached at week 8. Average egg viability was 33%. The highest percent egg hatch (77%) was obtained in week 8, followed by weeks 7 and 9 with approximately 67% and 61% viability, respectively. Mean egg length and width were 0.72 ± 0.003 and 0.31 ± 0.002 mm (± standard error, sample size = 458).
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.