Clemson University TigerPrints All Dissertations Dissertations 8-2019 Self-Repair and Self-Cleaning of the Lepidopteran Proboscis Suellen Floyd Pometto Clemson University,
[email protected] Follow this and additional works at: https://tigerprints.clemson.edu/all_dissertations Recommended Citation Pometto, Suellen Floyd, "Self-Repair and Self-Cleaning of the Lepidopteran Proboscis" (2019). All Dissertations. 2452. https://tigerprints.clemson.edu/all_dissertations/2452 This Dissertation is brought to you for free and open access by the Dissertations at TigerPrints. It has been accepted for inclusion in All Dissertations by an authorized administrator of TigerPrints. For more information, please contact
[email protected]. SELF-REPAIR AND SELF-CLEANING OF THE LEPIDOPTERAN PROBOSCIS A Dissertation Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy ENTOMOLOGY by Suellen Floyd Pometto August 2019 Accepted by: Dr. Peter H. Adler, Major Advisor and Committee Co-Chair Dr. Eric Benson, Committee Co-Chair Dr. Richard Blob Dr. Patrick Gerard i ABSTRACT The proboscis of butterflies and moths is a key innovation contributing to the high diversity of the order Lepidoptera. In addition to taking nectar from angiosperm sources, many species take up fluids from overripe or sound fruit, plant sap, animal dung, and moist soil. The proboscis is assembled after eclosion of the adult from the pupa by linking together two elongate galeae to form one tube with a single food canal. How do lepidopterans maintain the integrity and function of the proboscis while foraging from various substrates? The research questions included whether lepidopteran species are capable of total self- repair, how widespread the capability of self-repair is within the order, and whether the repaired proboscis is functional.