Review of the genus Microchilus Blanchard (Coleoptera: Scarabaeidae: Rutelinae: Geniatini) Author Jameson, Mary Liz University of Nebraska State Museum Division of Entomology W 436 Nebraska Hall Lincoln, NE 68588 - 0514 U. S. A. text Insecta Mundi 2008 2008-01-28 2008 25 1 14 journal article 10.5281/zenodo.4532782 1942-1354 4532782 Key to the species of Microchilus Blanchard Males: Terminal sternite with apex emarginated. Females: Terminal sternite with apex entire, not emarginated. 1. Male protarsomere II less than twice width of protarsomere I ( Fig. 15 ). Female protarsomere I subequal in length to protarsomeres II-IV combined ( Fig. 19 ); metatibia with 2 transverse, external carinae ................................................................................... M. lineatus Blanchard — Male protarsomere II more than twice width of protarsomere I ( Fig. 16 ). Female protarsomere I subequal in length to protarsomeres II-III ( Fig. 20 ); metatibia lacking 2 transverse, external carinae ........................................................................... M. rodmani Jameson , new species