Common Spiny Digger Wasp vs Silver Spiny Digger Wasp

Oxybelus uniglumis compared with Oxybelus argentatus

Key Differences

• Common Spiny Digger Wasp is Least Concern while Silver Spiny Digger Wasp is Endangered.

Taxonomic Classification

Rank	Common Spiny Digger Wasp	Silver Spiny Digger Wasp
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Arthropoda (สัตว์ขาปล้อง)	Arthropoda (สัตว์ขาปล้อง)
Class same	Insecta (แมลง)	Insecta (แมลง)
Order same	Hymenoptera (แตน)	Hymenoptera (แตน)
Family same	Crabronidae	Crabronidae
Genus same	Oxybelus	Oxybelus
Species	Oxybelus uniglumis	Oxybelus argentatus

Evolutionary Relationship

Common Spiny Digger Wasp and Silver Spiny Digger Wasp share a common ancestor at the Genus level: Oxybelus.

Conservation Status

Common Spiny Digger Wasp

LC — Least Concern

Silver Spiny Digger Wasp

EN — Endangered

Physical Characteristics

Attribute	Common Spiny Digger Wasp	Silver Spiny Digger Wasp
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Spiny Digger Wasp

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Silver Spiny Digger Wasp

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Spiny Digger Wasp

<em>Oxybelus uniglumis</em>, commonly known as the common spiny digger wasp, is a small solitary wasp in the family Crabronidae, widespread across Europe, North Africa, and parts of western Asia. This species typically inhabits sunny, open areas with sandy or loose soil, including sand dunes, sandy heathlands, path edges, and sparsely vegetated ground where females excavate burrows for nesting. Its geographic range extends from the British Isles and Scandinavia across continental Europe to the Mediterranean, with additional populations recorded across North Africa and into central Asia. Classified as Least Concern on the IUCN Red List, <em>Oxybelus uniglumis</em> is among the more commonly encountered digger wasps in European sandy habitats. The species is a specialised predator of flies, particularly small dipterans from families such as Muscidae and Calliphoridae, which are paralysed and carried back to the burrow impaled on the female's sting to provision larval cells. This behaviour of impaling prey on the sting for transport is a distinctive characteristic of the genus Oxybelus. Biological traits such as average lifespan in years, precise body length measurements, and body weight remain poorly documented for this species. Adults are typically active from late spring through late summer.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden