Museum, University of Nebraska State


Date of this Version

January 2008


Published in Insecta Mundi 0025: 1-14. Copyright © 2008 by Mary Liz Jameson. Used by permission.
Insecta Mundi, published by the Center for Systematic Entomology, is available online at


The Brazilian scarab beetle genus Microchilus Blanchard (Rutelinae: Geniatini) is reviewed. Based on examination of type specimens, Microchilus beckeri Martínez is transferred to the genus Leucothyreus becoming L. beckeri (Martínez), new combination; Leucothyreus bucki Machatschke is a new junior synonym of L. beckeri (Martínez). Microchilus is limited to two species, M. beckeri (Martínez) and a new species, Microchilus rodmani Jameson, here described. Characters that circumscribe the genus, biology, and species distribution are discussed.

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