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ViewAttendees 6

SysEB

Section Symposium

Insects and Micro-CT: Recent Advances in the Use of 3-dimensional Data within Entomology

3: Comparing tracheal morphology in the light organs of fireflies (Coleoptera: Lampyridae) to reveal new insights into their evolution

Wednesday, November 18, 2020

11:55 AM - 12:15 PM EST

Presenting Author(s)

Kristin N. Dunn

University of Florida
Gainesville, Florida

Co-Author(s)

Steve Ray Davis

New York, NY
SB

Seth M. Bybee

Brigham Young University, Department of Biology
Lehi, Utah
KS

Kathrin Stanger-Hall

University of Georgia
Athens, Georgia
MB

Marc Branham

University of Florida
Gainesville, Florida

We investigate the use of micro-computed tomography (micro-CT) scanning as a means of viewing the internal structures of the light organs of fireflies (Coleoptera: Lampyridae). With micro-CT we are able to assess the structural networks of the tracheal system within the light organ in 3D, which allows for quantification and analyses that have not been possible with traditional microscopy techniques. Here, we compare the tracheal morphology of Photinus pyralis and Photuris congener to identify structural similarities and differences in these taxa that represent independent origins of flashing light organs within Lampyridae.