Xictlotl is a fictional planet created by Ramsey Campbell for his short story "The Insects from Shaggai".
Background
Xictlotl is a planet located in the same solar system as Shaggai, a system with twin green suns. It's a planet that has very dense vegetation, and it's home of two sentient species and possibly more. When Shaggai was destroyed, the surviving insects of Shaggai moved to the planet, though they eventually left due to the threat posed to them by the Zy'tl Q'ae.