In April 1944, while stationed with the Navy along Manzanillo Bay in Panama I became interested in the ant-lions which "den" in the dust under the coconut trees. In order to observe their digging operations I captured three and placed them in a tin can partly filled with dust. Watching them excavate their deadly pits, I noticed how perfectly spaced the holes were for use of the available space.
Proceedings of the Iowa Academy of Science
©1949 Iowa Academy of Science, Inc.
Trump, Richard F.
"Notes on Ant-Lions,"
Proceedings of the Iowa Academy of Science, 56(1), 401-402.
Available at: https://scholarworks.uni.edu/pias/vol56/iss1/58