Cucumber Green Spider
Araniella cucurbitina
The Cucumber Green Spider is a small orb-weaver spider characterized by its bright yellowish-green abdomen. At the very end of the abdomen, above the spinnerets, there is a distinctive red spot. It constructs small orb-webs, often positioned horizontally between leaves, and is commonly found in gardens and woodlands. Its coloration provides excellent camouflage within green foliage.
Details
Identification
Yellow-green abdomen with 4-5 pairs of black dots; distinctive red spot above the spinnerets; cephalothorax light brown to greenish.
Social behavior
Solitary; interactions are largely restricted to the mating season.
Diet
Feeds on small flying insects such as midges, flies, and aphids.
Hunting strategy
Construction of small, mostly horizontal orb-webs with a diameter of about 10 cm between twigs or leaves.
Spawning substrate
Egg cocoons are attached to the undersides of leaves or within vegetation.
Overwintering
Overwinters as a juvenile in cocoons or under loose bark.
Ecology
Ecological role
Important regulator of insect populations in the shrub and tree layers.
Natural predators
Insectivorous birds, ichneumon wasps, and larger predatory arthropods.
Competitor species
Other species of the genus Araniella, especially Araniella opisthographa.
Ecosystem service
Biological control of pest insects in gardens and forestry areas.
Threats
Use of broad-spectrum insecticides and loss of hedgerow structures.
Scientific profile
Profile
Distinguishing features
Bright green coloration provides camouflage on foliage. The red spot at the posterior end of the abdomen is a diagnostic feature of the genus Araniella. The orb web is remarkably small, measuring about 10 cm in diameter.
Habitat
Forest edges, shrublands, gardens, parks, and orchards; prefers the shrub and canopy layers.
Role in food web
Secondary consumer; regulates insect populations and serves as prey for birds and parasitic wasps.
Protection & threats
Main threats
Use of broad-spectrum insecticides in agriculture and forestry; loss of hedgerows and structurally diverse forest edges.
Population trend
Stable; the species is considered widespread and common in Germany and Central Europe (Red List: Least Concern).