Sensory Structures on the Glassy-Winged Sharpshooter
Author Information
Author(s): Hummel Natalie A., Leal Walter S., Zalom Frank G.
Primary Institution: Louisiana State University Agricultural Center
Hypothesis
The coeloconic sensilla on the anal stylus of the glassy-winged sharpshooter may be hygroreceptors.
Conclusion
The anal styli of both male and female glassy-winged sharpshooters show a strong electrophysiological response to water vapor, suggesting the presence of hygroreceptive sensilla.
Supporting Evidence
- The anal stylus of H. vitripennis exhibited stronger electrophysiological responses to water vapor than controls.
- Females showed stronger responses (7.1 ± 0.8 mV) compared to males (3.7 ± 0.4 mV).
- Scanning electron microscopy revealed the presence of coeloconic sensilla on the anal stylus.
Takeaway
The glassy-winged sharpshooter has special sensors on its body that help it find plants with the right amount of water to eat and lay eggs.
Methodology
Electrophysiological responses of the anal stylus to water vapor were recorded using a modified electroantennography device, and the external morphology was examined using scanning electron microscopy.
Limitations
The study does not establish the exact function of the sensilla or their role in host selection.
Participant Demographics
Five male and five female glassy-winged sharpshooters were used in the study.
Digital Object Identifier (DOI)
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