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1 July 2017 Soil Moisture Effects on Pupation Behavior, Physiology, and Morphology of Heortia vitessoides (Lepidoptera: Crambidae)
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Abstract

Previous studies show that pupating in soil is essential for Heortia vitessoides Moore (Lepidoptera: Crambidae) to complete its life cycle. However, little is known of the process. In the present study, we observed soil-burrowing and pupal-chamber construction by prepupae of H. vitessoides in 0.5-cm-wide acrylic plate interlayers. In bioassays, we also investigated pupation behaviors and pupal physiology and morphology in response to soil moistures of 5%, 25%, 45%, and 65% water saturation. Prepupae burrowed significantly deeper in soils with higher levels of soil moisture and constructed larger pupal chambers at 65% water saturation. H. vitessoides pupae also had significantly greater percentage biomass loss and lower body water content when the soil moistures were lower. Interestingly, pupae in 5% saturated soil were smaller and showed a significantly higher surface-to-volume ratio than at other soil moisture levels, which might pose challenges in water conservation.

Yuzhen Wen, Wenquan Qin, Xuan Chen, Xiujun Wen, Tao Ma, Xian Dong, Shucong Lin, Zhaohui Sun, Shucai Zeng, and Cai Wang "Soil Moisture Effects on Pupation Behavior, Physiology, and Morphology of Heortia vitessoides (Lepidoptera: Crambidae)," Journal of Entomological Science 52(3), 229-238, (1 July 2017). https://doi.org/10.18474/JES16-12PT.1
Received: 5 December 2016; Accepted: 1 March 2017; Published: 1 July 2017
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