Bombycoid moths: an emerging model clade for studying insect flight

Area of Science:

• Zoology
• Evolutionary Biology
• Biomechanics

Background:

• Insect flight is a complex behavior resulting from diverse traits.
• Understanding flight evolution requires integrating experimental and comparative approaches.
• The moth superfamily Bombycoidea presents a promising model system for such studies.

Purpose of the Study:

• To propose Bombycoidea as an emerging model clade for studying insect flight evolution.
• To highlight the suitability of Bombycoidea for integrating controlled experiments with phylogenetic analyses.
• To leverage Bombycoidea's diversity for understanding the evolution of flight.

Main Methods:

• Phylogenetic analysis of the Bombycoidea superfamily.
• Comparative analysis of flight behaviors, morphology, and life history traits.
• Leveraging existing research on species like Manduca sexta.

Main Results:

• Bombycoidea is a monophyletic group with a well-resolved phylogeny and extensive interspecific variation.
• Contrasting flight strategies exist within Bombycoidea, such as agile hawkmoths and erratic silkmoths.
• Convergent evolution is observed in life history, wing morphology, and patterning across Bombycoidea.

Conclusions:

• Bombycoidea provides a tractable model for large-scale comparative studies of insect flight.
• This clade facilitates uncovering general principles of animal behavior and locomotion.
• Future research on Bombycoidea can significantly advance insect flight evolution understanding.