Choices and Consequences of Oviposition by Hylemya (Delia) Sp. (Diptera: Anthomyiidae)

摘要: Hylema sp.5females oviposit on the undersides of sepals developing buds both Ipomopsis aggregata and Polemonium foliosissimum. Eggs deposited latter are significantly more likely to be fully protected by sepal than eggs former. Unexposed have a greater likelihood successfully larval stage do exposed eggs. The difference in frequency egg exposure two plant species can attributed differences morphology: I. narrower those P. hypothesis that females preferentially larger flowers was unconfirmed manipulative choice experiment. Plants differing size their were potted together presented Hylemya arrays field. Flowers larger-flowered pair no oviposited smaller-flowered pair. However, there significant negative correlations between corolla length percentage laid per day at each sites. There also positive correlation width one site. Thus appear using some measure flower morphology, or correlated trait, making oviposition decisions. degree which is suboptimal choices host discussed requires further examination.