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  • Ancient katydid fossil reveals muscles, digestive tract, glands and a testicle

    A living example of the genus Arethaea.

    Present-day katydids of the genus Arethaea, pictured here, have the same internal structures as those seen in the fossil.

    Photo by Salvador Vitanza


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  • Editor’s note:   

    To reach Sam Heads, email

    The paper “A new fossil katydid of the genus Arethaea Stål (Orthoptera: Tettigoniidae) with exceptionally preserved internal organs from the Eocene Green River Formation of Colorado” is available online or from the U. of I. News Bureau.

    *Leellen Solter, a retired insect pathologist and research affiliate of the Illinois Natural History at the Prairie Research Institute, has dedicated her scientific expertise and time to the ongoing project of cataloging and organizing the vast fossil insect collection at the Center for Paleontology.

    DOI: 10.11646/palaeoentomology.6.3.10