The Mothohive is an amalgamation of dark matter.
It is the size of a kaiju. Its wingspan is double its own size. It has a large scythe-like tail, large lanterns and menacing eyes.

As shown in the Dawn of the Dimetrix lyric sheet, the Mothohive's body is slim. It also has arms and legs, which it can use when walking.

It doesn’t want to actually hurt anyone it was just acting out of self defense and maybe this beast isn’t so evil after all.

If shown love, it could transform into a human man.