Angulate And Roundshouldered Orbweavers
ExploreInvertebrate
Angulate And Roundshouldered Orbweavers
araneus
The angulate and roundshouldered orbweavers of the genus Araneus are remarkable arachnids famous for building classic, geometrically perfect spiral webs. Found globally, these spiders are essential pest controllers in forest and garden ecosystems. Their common names derive from the distinctive humps or 'shoulders' on the upper margins of their large abdomens. Primarily active at twilight and night, they showcase incredible engineering skills, spinning strong silk structures to capture flying insects. Many species within this genus consume their web daily to recycle the proteins before building a new one.
Habitat: Typically found in temperate forests, woodlands, gardens, and shrublands, often constructing webs between tree branches or near outdoor light fixtures.
Appearance
These medium to large spiders are characterized by a bulbous, triangular abdomen with prominent shoulder humps. Their coloration is highly variable, ranging from mottled greys, browns, and tans to striking yellows and oranges, providing excellent camouflage against tree bark. Many species display a leaf-like pattern called a folium on their back. Their legs are long, robust, and heavily spined, often banded with alternating dark and light rings to disrupt their outline. Females are much larger than males, with body lengths typically between 1 and 3 centimeters.
KingdomAnimaliaPhylumArthropodaClassArachnidaOrderAraneaeFamilyAraneidae
Category
InvertebrateRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Spider silk from this genus is exceptionally strong, possessing a tensile strength comparable to high-grade steel of the same thickness.
The shoulder humps on angulate orbweavers help disguise them as tree bark nodules or seed pods when they tuck their legs in.
They often eat and rebuild their webs daily, a process that takes only about 30 to 45 minutes of intensive work.
Special abilities
Ability
Orb-Web Architecture
They construct highly organized vertical spiral webs using both non-sticky structural silk and sticky capture silk, optimized to trap flying insects.
Ability
Silk Recycling
They systematically consume their old webs daily, digesting the silk proteins to quickly produce fresh webbing with minimal waste.
Ability
Vibrational Detection
They rely on highly sensitive slit sensilla on their legs to detect minute vibrations traveling through the web, allowing them to pinpoint prey instantly.
Measurements & details
- Length
- 1-3 cm
- Weight
- 0.0001-0.005 kg
- Lifespan
- 1-2 years
- Clutch Size
- 100-800
- Incubation
- 14-30 days
Diet & Feeding
They primarily feed on insects that fly into their spiral webs, which they wrap in silk and paralyze with venom.
Primary Foods
- Flies
- Moths
- Wasps
- Mosquitoes
Foraging Method
- Ambush
Ecological connections
eaten by
Blue Jay
Cyanocitta cristata
Predator that frequently plucks orbweavers directly from their webs.
eaten by
Black-and-Yellow Mud Dauber
Sceliphron caementarium
A wasp that paralyzes orbweavers to provision its mud nests for its larvae.
hunts
House Fly
Musca domestica
Common flying insect pest captured and consumed by the spider.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Angulate And Roundshouldered Orbweavers?
The easiest way to identify Angulate And Roundshouldered Orbweavers is to use the Snappit nature identifier app.
How long is Angulate And Roundshouldered Orbweavers?
1-3 cm
How much does Angulate And Roundshouldered Orbweavers weigh?
0.0001-0.005 kg
How long does Angulate And Roundshouldered Orbweavers live?
1-2 years
What does Angulate And Roundshouldered Orbweavers eat?
They primarily feed on insects that fly into their spiral webs, which they wrap in silk and paralyze with venom.
Where is Angulate And Roundshouldered Orbweavers usually found?
Typically found in temperate forests, woodlands, gardens, and shrublands, often constructing webs between tree branches or near outdoor light fixtures.
How does Angulate And Roundshouldered Orbweavers hunt?
Ambush
How many eggs does Angulate And Roundshouldered Orbweavers lay?
100-800
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