Well, to be honest, it was just a villain Blue Beetle faced twice during his original two Charlton comics run, but, let's take a look at him anyway!
The Praying Mantis-Man
Premiering in Blue Beetle #4 (January, 1965) by Joe Gill, Bill Fraccio and Tony Tallarico (with cover by Pat Massulli and Dick Giordano), was Hunter Mann, a radical naturalist who, due to his work with chlorophyll, turned a shade of green, and planned to change the work with giant mosquitos. His work was found out by entomologist Juanita Rivera, who enlisted the help of Dan Garrett. Dan, when he realized the size of the threat, pulled out his mystic scarab, said "kaji dha" and became the super hero, Blue Beetle!
But, it wasn't over....
The People Thieves