Although their imago form is never seen, the Primitive Mothras resemble most other examples of a Mothra larva. However, their skin appears to be much thicker and bears what seems to be armor plating. Unlike modern Mothras, the eyes of a Primitive Mothra do not glow, but are blue in color.
Three Primitive Mothras first appeared after Rainbow Mothra killed Cretaceous Ghidorah. After diving into Mount Fuji, Rainbow Mothra was on the brink of death, and the three formed a cocoon around him, sealing him for millions of years so he could heal from his injuries. Regenerating from a tail severed during their battle, King Ghidorah reappeared to menace modern Japan, but Rainbow Mothra emerged from his cocoon as the powerful Armor Mothra and destroyed him.
The Primitive Mothra larvae can travel on land at a maximum speed of 60 kilometers per hour, equivalent to that of Mothra Leo.
Like all Mothra larvae, the Primitive Mothras are able to spray silk webbing from their mouths. Some sources utilize the name Excel Strings (エクセル・ストリングス) for the webbing, the same as the larval Mothra Leo's in the first Rebirth of Mothra. Unlike Leo's, these strings had no rainbow aftershock.
- Godzilla Kaiju Collection (2015) - Android and iOS
- Main article: Primitive Mothra/Gallery.
This is a list of references for Primitive Mothra. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: