Workers
The small ants most often noticed while foraging. Their activity makes a useful monitoring signal.
Aloha Organic · Little fire ant field guide
From egg to adult.
Understand the life cycle and the colony behind the ants you see.
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Four stages.
One connected colony.
Ants develop through egg, larva, pupa, and adult. Workers care for the developing brood; the ants seen foraging are only part of the population.
Each illustration is enlarged independently, not shown on a shared scale. Open a plate to see its labels at full size. Illustrations explain life stages; they do not confirm a specimen’s identity.
01 / LIFE STAGE
Egg
The beginning of development.
Pale eggs are part of the brood tended inside the nest. A cluster’s appearance alone cannot establish which ant species laid it.
- What to notice
- Small, smooth, pale oval forms with no visible legs or adult body regions.
- Read the view
- The eggs are greatly enlarged. No measured LFA egg size is implied by the drawing.
02 / LIFE STAGE
Larva
A growing stage cared for by workers.
The soft, legless larva depends on workers for food and care. It has not yet developed the narrow waist and walking legs of an adult ant.
- Parts to compare
- A small head, soft segmented body, and no legs.
- Read the view
- This schematic explains larval form. Fine larval features need magnification and specialist comparison.
03 / LIFE STAGE
Pupa
The adult body develops.
The pupa is a non-feeding stage. The adult outline becomes recognizable while legs and antennae remain folded close to the body.
- Parts to compare
- Developing head, folded appendages, a narrow waist, and the rounded gaster.
- Read the view
- A pale worker pupa is shown without a silk cocoon. Its folded posture differs from a walking adult.
04 / LIFE STAGE
Adult
Workers, queens, and males have different roles.
The ant shown here is an adult worker. Its small size does not make it a juvenile. Workers forage and care for brood; queens and males are also adults.
- Parts to compare
- Antennae, mesosoma, propodeal spines, two waist segments, and gaster.
- Size context
- Workers are about 1–1.5 mm long. Queens are larger, about 4.5–5 mm, and differ in shape.
A life-cycle sequence, not a timetable. Conditions affect development; do not use a fixed number of days as evidence that an infestation is gone. Juvenile illustrations explain general form and are not species-identification keys.
Queens
Reproductive females are larger than workers. LFA nests may contain multiple queens.
Connected nests
Think beyond a single trail. Record activity in different parts of the property and at different heights.
Sources & reading notes
Reviewed October 23, 2026. Guidance is written by Aloha Organic; sources retain their original authorship.