
COMMON ORB WEAVER

Size
Life span
Habitat
Appearance
Facts
8mm
1 year
Gardens, fields, forests (any vegatation or structure they can build a web on)
Young orb weavers emerge from their egg sacs they have spent the winter in around March in early spring. They either build small webs near here or float to other areas by producing a long thread of silk carried by the wind.
They eat insects that fly into and get stuck in their webs, they feel the vibrations of the insect hitting the web and run down to it where they pull more web over it to trap it completely. They then bite it to inject their venom which paralyzes the prey and digests their insides so it can be sucked out with their fangs.
By the early atumn they are ready to mate and the male which only biulds a small web if at all finds a females web to join. He uses his leg to tap out special vibrations so the female recognises him as a mate and not food and joins the female here until they mate. After mating the male dies soon after as he will not have been hunting in his search for a mate.
The female produces 100-300 eggs, wraps them in a silken egg sac and guards them until she dies from starvation by October. After a few weeks the spiderlings hatch but spend the winter keeping warm in the egg sac until spring arrives.
Spiders have two body segments; the cephalothorax which includes the head and the abdomen. They have 8 legs and a pair of palps by their fangs. The common orb weaver is a pale yellow/brown colour with brown/grey/white/black marks on their rounded abdomen.
Male common orb weavers are darker with a thinner abdomen and longer legs.
(From David Attenborough's 'Life in the Undergrowth')
-
Common orb weavers build a new web each night and eat the old one along with pollen and fungal spores which make up part of their diet
-
They produce silk using their spinnerets on the abdomen
-
They also produce a stickyy glue from a different gland to capture the insects
-
These spiders rarely come into our houses
-
They can bite humans but their venom is not strong wnough to harm us
-
Spiders communicate with one another using vibrations and chemical scents