From "Kikaida"

Yellow Antlion-Brothers Three:http://i231.photobucket.com/albums/ee121/Kainsword17/monsters/yab.jpg

170 cm (approx 5.6 feet), 75 kg (approx 165 pounds)

Special Ability: Underground travel

Weapons:
Antlion Electromagnetic Beam, horns

Alphabet Plan:
A. Diamond Dust
B. Microwave Beam
C. Electromagnetic Waves
D. Electric Discharge
E. Hydrofluric Acid

First monster family. One of the brothers was the fifth Doctor monster to actually damage Kikaida. One of the brothers was restored in the movie, camp four.

©Toei