Amboina Pitch Tree vs Common Spangle Gall

Agathis dammara compared with Neuroterus quercusbaccarum

Key Differences

• Amboina Pitch Tree is Vulnerable while Common Spangle Gall is Not Evaluated.

Taxonomic Classification

Rank	Amboina Pitch Tree	Common Spangle Gall
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Hymenoptera (Ants, Bees & Wasps)	Hymenoptera (Ants, Bees & Wasps)
Family	Braconidae	Cynipidae
Genus	Agathis	Neuroterus
Species	Agathis dammara	Neuroterus quercusbaccarum

Evolutionary Relationship

Amboina Pitch Tree and Common Spangle Gall share a common ancestor at the Order level: Hymenoptera. (Ants, Bees & Wasps)

Conservation Status

Amboina Pitch Tree

VU — Vulnerable

Common Spangle Gall

NE — Not Evaluated

Physical Characteristics

Attribute	Amboina Pitch Tree	Common Spangle Gall
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amboina Pitch Tree

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 4 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Brazil, Congo (DRC), and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Spangle Gall

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Amboina Pitch Tree

The Amboina Pitch Tree (Agathis dammara) is a species in the genus Agathis. It is currently classified as Vulnerable on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 4 distinct biome types within the Afrotropic biogeo

Common Spangle Gall

<em>Neuroterus quercusbaccarum</em>, commonly known as the common spangle gall, is a small gall wasp in the family Cynipidae, closely associated with oaks in Europe and western Asia. This species is notable for its complex life cycle involving alternating sexual and asexual generations, each producing morphologically distinct galls on its oak hosts. The asexual generation typically induces flat, disc-shaped "spangle" galls on the undersides of oak leaves, while the sexual generation produces small "currant" galls on oak catkins and leaves in spring. <em>Neuroterus quercusbaccarum</em> is widely distributed across Europe, extending into parts of western Asia and North Africa wherever suitable oak hosts, particularly <em>Quercus robur</em> and <em>Quercus petraea</em>, occur. The species has not been evaluated under IUCN Red List criteria, and population trends are not formally monitored, though it remains common across much of its range. Biological traits such as average lifespan in years, body dimensions, and weight remain poorly documented in the scientific literature for this minute insect. The larvae develop entirely within gall tissue, feeding on plant nutrients provided by the gall structure they induce. Adult wasps are free-living and do not feed substantially. Conservation status is listed as Not Evaluated.