
Inside their nests, decomposed bodies of other creatures can often be discovered, trapped in the viscous silk the grubs produce as a food source, and some of their deepest chambers are pooled with blood. Within this system, common Antlions presumably serve as hunter-gatherers. The larvae grow into large grubs, which are attended to and protected by Antlion Workers and Antlion Guardians.

It may be speculated that they were in this state when rescuing Gordon. It should be noted that when they imbibe the extract, they glow purple and look very similar to how they did in the beginning of Episode One. This seems to augment their natural powers. The extract of these larvae is highly prized by the Vortigaunts for its ability to "divide the false veils of the vortessence" when imbibed. Their young begin life as larvae in blue honeycombs similar to those of bees. It is not clear how Antlions breed one resistance member is heard referring to a "spawning season" at the beginning of the Highway 17 chapter, but whether Antlions mate separately, have a queen/drone system or practice something completely alien to Earth sensibilities is not known.


