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Atlas / Library / Formicidae / Asian weaver ant (green tree ant)
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Formicidae

Asian weaver ant (green tree ant)

Oecophylla smaragdinaมดแดง (also มดส้ม)

Part of this is not on the page we cite. We opened it on 10 Aug 2026 and some of the degrees above are not stated there. The values above may still be right, but we cannot show you where they came from, and nobody here has checked them against a second source. Anything about a sick animal goes to a qualified exotic vet, not to a page. en.wikipedia.org

Photograph: portioid · CC BY

Photographed by an observer on iNaturalist and published under a Creative Commons licence; the photographer and the licence are named under the image. It is not an animal of ours, and no animal was handled by us to produce it.

14:00
Day

Drag the sun. Asian weaver ant (green tree ant) is diurnal, so what it is doing changes with the light.

Arboreal · warm · humidFrom the sheet: 28–32°C, humidity 60–80%

The way of life is written in this sheet, word for word. The climate words summarise the two figures above them, they do not add to them.

National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.

Check your setup against this sheet I keep one 123 plants usable with this species
Back to the globe My keep

https://keepr.pet/husbandry/en/oecophylla-smaragdina

‹ All husbandry guides
Temperature28–32 °C
Humidity60–80 %
Diet1 days

The numbers

Temperature

152025303540 °C
28–32°Ambient

One ambient band, 28–32°C. This sheet states no warm side, no cool side and no night figure, so none are shown. Same scale on every sheet here, so two species compare by eye.

The sheet states28-32C

Humidity

60–80%Target RH

The sheet states60-80%

Enclosure
Founding: test tube (queen+brood); then arboreal outworld with live plant/mesh - not a plaster nest species

Identity

Adult size

1.75 m0.5–1 cm
1520100400 cm
0.5–1 cmNose to tail, adult

The size the sheet states for a grown animal.

Why

Two drawings, because they answer two questions. The silhouette is at true scale against a 1.75 m person: it says how big this animal actually is, which no number does for someone who has never seen one. The bar under it is logarithmic and shared by every sheet here, so a 2 cm isopod and a 4 m python both stay readable on the same axis and two species can be compared at a glance.

Order / Family
Hymenoptera
Origin
IUCN / CITES
Not evaluated; CITES not yet in our data
Difficulty
Advanced
Commonality
Very common wild; iconic but tricky as a pet
Adult size
Worker 5-10mm (major ~10mm); queen 15-18mm, green-tinged
Lifespan
Queen up to ~8 yrs; colony perennial/huge; captive colonies often decline
Growth rate
Fast when thriving
Activity & niche
Arboreal, diurnal, highly territorial canopy weaver
Temperament
Very aggressive, fast, cooperative swarm attacker
Venom / defense
Strong bite + formic acid spray (no sting); painful but harmless to humans

Enclosure and conditions

Temperature
28-32C
Humidity
60-80%
Min. enclosure
Founding: test tube (queen+brood); then arboreal outworld with live plant/mesh - not a plaster nest species
Substrate
No dug nest; weaves silk-leaf nests; potted plant + netting/branches
Hides / decor / water
Living branches/leaves to weave; humid outworld; water droplets/feeder

What your climate adds

This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.

Diet

Feeding rhythm

every 1 dAs the sheet states
28Meals in 28 days

Twenty-eight days, one row. Each band is a meal window.

Why

The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56.

The sheet statesSugar water/honeydew + insect protein (crickets) · Sugar daily; protein 2-3x/week

Staple food
Sugar water/honeydew + insect protein (crickets)
Feeding frequency
Sugar daily; protein 2-3x/week

Behaviour and handling

HandlingNot handled; bites and sprays acid
CommunalEusocial; one colony only; extremely territorial - never mix
Defense / stress signsGaping mandibles, acid smell, mass recruitment to threat

Reproduction

Life course

Day 0Hatch
8 yrLifespan in care
8 yrMinimum commitment
Sexual maturityNot in our data

Read from the lifespan and maturity the sheet states, for animals in care and not in the wild.

Why

The minimum commitment is the low end of that lifespan, and the reproductive window is what is left after maturity: both are subtractions on stated figures, not figures of their own. The sheet also reports a record of about 8 years; that is a reported maximum, not the range to plan for.

Reproduction
Fully-claustral single-queen founding after nuptial flight; workers weave nests with larval silk; hard to keep past founding

Common health problems

Common health issues
SignsCaptive colony collapse, dehydration, protein deficiency
Red flags / quarantine
SignsUsually wild-caught; needs space+plants; escapees bite - barrier essential

Good to know

  • Larvae are living glue-guns: workers squeeze them to bind leaves with silk

What it needs

A thermometerbecause temp — 28-32C
A hygrometerbecause humidity — 60-80%
Not stated: The size of the enclosurethis sheet describes the enclosure without a figure: « Founding: test tube (queen+brood); then arboreal outworld with live plant/mesh - »

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation. What the sheet does not state is listed too, rather than left out: a kit that looks complete is worse than one that names its gap.

Sources

en.wikipedia.orgthewildmartin.com

Others in this group

Nicobar carpenter antCamponotus nicobarensisAsian spiny/golden weaver antPolyrhachis divesAsian marauder/power antCarebara diversaAsian jumping antHarpegnathos venatorBlack garden antLasius nigerMediterranean harvester antMessor barbarusFellah carpenter antCamponotus fellahTiger carpenter antCamponotus maculatus

What this sheet states

100%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

Every field this product runs on is stated here. That is not a claim that the values are right: it says what the sheet states, not whether it is true. Whether a human has read it is the badge at the top of this page.

UVB is measured but does not count: it is absent from 421 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.