Ant Keeping Glossary

Ant keeping has its own vocabulary, borrowed partly from entomology and partly from the hobby’s forums. Here are the terms a beginner meets most often, in plain English.

Colony & anatomy

• Alate — a winged reproductive ant (a young queen or male) before the mating flight.
• Gaster — the bulbous rear section of an ant’s body (what most people call the abdomen).
• Nanitic — the first, undersized workers a founding queen raises. Smaller than later workers, and completely normal.
• Polygyne / Monogyne — a colony with multiple queens (polygyne) versus a single queen (monogyne).
• Major / Minor — size castes of workers in species that have them; majors (or “soldiers”) have large heads.
• Brood — the collective term for eggs, larvae, and pupae.

Founding & lifecycle

• Nuptial flight — the mass mating flight when alates leave to mate; where wild queens are caught.
• Dealate — a queen that has shed her wings after mating and is ready to found a colony.
• Claustral founding — the queen founds sealed away with no food, living off body reserves.
• Semi-claustral founding — the queen forages a little during founding and needs occasional food.
• Eclose — when an adult ant emerges from its pupa.
• Diapause / Hibernation — the winter rest period many temperate species require.

Housing & equipment

• Formicarium (formicaria) — the ants’ nest enclosure. The heart of the setup.
• Outworld — the attached foraging area where ants feed and dump waste.
• Ytong / AAC — aerated concrete used to carve humidity-holding nests. Popular and cheap.
• Test tube setup — the classic founding home: water, cotton, and darkness.
• Fluon (PTFE) — a slippery coating painted around rims to stop ants escaping.
• Hydration port — an opening for adding water to keep a nest’s humidity up.
• Nanitic nest — a small first nest sized for a founding colony.

Care terms

• Trophallaxis — mouth-to-mouth food sharing between ants; how a colony distributes liquid food.
• Midden — the ants’ rubbish and graveyard pile, usually in a corner of the outworld.
• Founding stage — from a lone queen to her first workers.
• Nanitic stage — the early colony with only first-generation workers.

Meet a term that isn’t here? It’s very likely a species name — check the species database, where each care card explains the specific needs behind the label.