This adult male beetle was found on the grounds of the hotel at the Cola del Caballo resort, south of Monterrey, Nuevo Leon, Mexico. Image scanned from 35mm slide. I hope someone can check the species ID for me. I keyed this out from the online keys here: http://museum.unl.edu/research/entomology/Guide/Scarabaeoidea/Scarabaeidae/Dynastinae/Dynastinae-Tribes/Dynastini/Dynastes/D-hyllus/Dhyllus.html
Description: Scientific name Dynastes hyllus 日本語: ヒルスシロカブト Place:Itami City Museum of Insects,Hyogo,Japan. Date: 3 November 2008. Source: KENPEI's photo. Author: KENPEI. Permission (Reusing this file): GFDL,Creative Commons Attribution ShareAlike 2.1 Japan License.