Cicada Human

The Cicada Poeple are a race of insectoid aliens that most of, it would be assumed, would become Alien Baltan.

Cicada Man Subtitle: Universe Phantom (宇宙怪人, Uchū Kaijin)

Cicada Woman Subtitle: Alien Yu (遊星人, Yū Seijin)

Powers/Abilities:
None.

History
Then Cicada Man (セミ人間, Semi Ningen) disguised himself as a human in order to steal the Tilsonite meteor in order to control two arriving Garamons. Hiding out within the forests of Japan, the alien being ordered the pair of giants to rip Tokyo apart, but he couldn’t expect humanity to track him down. Upon arriving, the soldiers’ weapons levitated out of their hands and fired on them, ending their lives.

The technology of the Cicada Man was great, but Jun managed to knock the device out of the alien’s hands. As his plans began to fall apart, the being was shot, forcing it to give up its human disguise and reveal the real threat. Having lost the meteor and the pair of Garamons, the creature stumbled to the alien ship emerging from the lake. His own kind would not forgive his failure and executed the fiend in a beam of light, igniting the creature in a blistering inferno.

Trivia

 * The original Cicada Man costume was later made into the first Alien Baltan costume.

Ultra Q: Dark Fantasy
Like the the original Ultra Q, Dark Fantasy had a Cicada huminoid appear, only it was female, the Cicada Woman (セミ女, Semi On'na).

The Cicada Woman's plan was to destroy the Earth with small robots called Gara Qs to sell to Earth as toys, an advanced Garamon android, Garagon! However,Garagon was destroyed and the Gara Q's decided they like the humans and stayed. But later, in retaliation for the defeat of Garagon and her last planned invasion, the Cicada Woman captures Professor Watari, and Garagon II. However,Cicada Woman is defeated when she was betrayed by Ryo’s Gara Q.

ULTRAMAN manga
In the 2011 manga, a villian calle Alien Adacic was the result of cross breeding between the Cicada people and the people of planet Baltan.