|Environment||Warm or temperate land or underground|
Source: Bestiary 4, pg(s). 109
Formian myrmarchs have upper bodies as big as warriors', but their enlarged thorax and abdomen give them the same general size as a horse. Their tail ends in a wickedly barbed stinger. Like other formians, myrmarchs record their life history and accomplishments upon their carapaces. Some myrmarchs live long enough to run out of space on their exoskeletons and have to add new artificial plates to continue recording.
Formian myrmarchs live relatively long lives by formian standards (roughly as long as humans do). Due to their aristocratic role, they are even deadlier than the warriors under their command, and often fight with javelins tipped with their own venom.