Asian Spinybacked Orbweaver
EntdeckenInvertebrate
Asian Spinybacked Orbweaver
thelacantha brevispina
The Asian Spinybacked Orbweaver (Thelacantha brevispina) is a captivating spider renowned for its striking, crab-like appearance. Widespread across South and Southeast Asia, this small arachnid stands out due to its hardened, colorful abdomen adorned with six prominent, sharp spines. Unlike typical garden spiders, the females of this species build highly robust, vertical orb webs decorated with conspicuous white silk tufts, which may serve as a visual warning to prevent birds from flying through them. These industrious spiders are major insect predators, playing an essential role in regulating local pest populations in tropical forests, gardens, and shrubby areas. While their bizarre shape and vivid markings can make them look intimidating, they are completely harmless to humans.
Lebensraum: Found in tropical and subtropical woodlands, scrublands, and coastal forests, frequently weaving webs between shrubs and low tree branches.
Aussehen
Female Asian Spinybacked Orbweavers possess a broad, hard, crab-like abdomen that features a distinctive pattern of white, black, and orange markings, punctuated by six distinct, dark spines curving outward from the edges. The abdomen's dorsal side often displays two prominent white spots resembling eyes, contrasting sharply with the dark background. Females measure around 0.5 to 1.0 centimeter in length, whereas the cryptic males are significantly smaller, often measuring less than 0.3 centimeters, and lack the dramatic spines and bright coloration of their female counterparts.
ReichAnimaliaStammArthropodaKlasseArachnidaOrdnungAraneaeFamilieAraneidaeGattungThelacantha
Kategorie
InvertebrateSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
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Interessante Fakten
Males are extreme underdogs in size, weighing up to 100 times less than females, and must carefully court females to avoid being eaten during mating.
The distinct 'eyespot' pattern on the back of the spider's abdomen is a form of mimicry designed to confuse and scare away potential predators.
They rebuild or patch their webs almost daily to ensure the sticky silk remains effective at trapping prey in dusty tropical environments.
Besondere Fähigkeiten
Fähigkeit
Spiny Armor Protection
The hardened abdominal exoskeleton and sharp spines make the spider difficult and unpalatable for small predators like birds and lizards to swallow.
Fähigkeit
Web Tuft Warning
They weave highly visible white silk tufts into their webs, which act as visual deterrents to prevent larger animals from accidentally destroying their hard work.
Fähigkeit
Thermoregulatory Posturing
They can adjust their body orientation relative to the sun to absorb heat on cooler mornings or minimize direct exposure during intense tropical afternoons.
Maße und Details
- Länge
- 1 cm
- Gewicht
- 0.0001-0.0005 kg
- Lebenserwartung
- 1 Jahre
- Gelegegröße
- 100-300
- Brutzeit
- 14-28 Tage
Ernährung und Fütterung
Feeds almost exclusively on small flying insects that fly into its sticky, vertical orb web.
Altersunterschiede: Spiderlings consume microscopic insects and pollen caught on the web, while adults target larger flying insects.
Hauptnahrung
- Mosquitoes
- Fruit flies
- Small moths
- Gnats
Nahrungssuche
- Ambush
Ökologische Zusammenhänge
hunts
Asian Tiger Mosquito
Aedes albopictus
Preys upon mosquitoes, helping control populations of disease vectors in tropical regions.
eaten by
Common House Gecko
Hemidactylus frenatus
Falls prey to common tropical wall geckos that hunt near lights and foliage where webs are constructed.
eaten by
Asian Mud Dauber Wasp
Sceliphron madraspatanum
Parasitized by specialized wasps that paralyze the spider to feed their developing larvae.
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man Asian Spinybacked Orbweaver?
Der einfachste Weg, Asian Spinybacked Orbweaver zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Asian Spinybacked Orbweaver?
1 cm
Was ist der/die/das gewicht von Asian Spinybacked Orbweaver?
0.0001-0.0005 kg
Was ist der/die/das lebenserwartung von Asian Spinybacked Orbweaver?
1 Jahre
Was frisst Asian Spinybacked Orbweaver?
Feeds almost exclusively on small flying insects that fly into its sticky, vertical orb web.
Wo findet man Asian Spinybacked Orbweaver normalerweise?
Found in tropical and subtropical woodlands, scrublands, and coastal forests, frequently weaving webs between shrubs and low tree branches.
Wie jagt Asian Spinybacked Orbweaver?
Ambush
Was ist der/die/das gelegegröße von Asian Spinybacked Orbweaver?
100-300
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