brown point snail vs Common Spangle Gall

Acicula fusca compared with Neuroterus quercusbaccarum

Key Differences

• brown point snail is Extinct while Common Spangle Gall is Not Evaluated.

Taxonomic Classification

Rank	brown point snail	Common Spangle Gall
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum	Mollusca (मोलस्का)	Arthropoda (सन्धिपाद)
Class	Gastropoda (उदरपाद)	Insecta (कीट)
Order	Architaenioglossa (Architaenioglossa)	Hymenoptera (कलापक्ष)
Family	Aciculidae	Cynipidae
Genus	Acicula	Neuroterus
Species	Acicula fusca	Neuroterus quercusbaccarum

Evolutionary Relationship

brown point snail and Common Spangle Gall share a common ancestor at the Kingdom level: Animalia. (प्राणी)

Conservation Status

brown point snail

EX — Extinct

Common Spangle Gall

NE — Not Evaluated

Physical Characteristics

Attribute	brown point snail	Common Spangle Gall
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brown point snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium and Norway.

Common Spangle Gall

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

brown point snail

The Brown Point Snail (Acicula fusca) is a species in the genus Acicula. It is currently classified as Extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway