families Araneidae and Tetragnathidae.
The familiar, vertical orb webs are built in cotton by several different kinds of spiders, orbweavers belonging to the families Araneidae
. The webs are most noticeable when the plants are fairly large but before the canopy closes over the furrows. Common garden spiders (Araneidae: Araneus)
wait under nearby leaves for flying insects to become trapped in their webs, whilst St Andrew cross spiders (Araneidae: Argiope
) rest in the centre of their webs, often with their legs in the shape of a cross. Remains of heliothis moths are often found hanging in the webs which are usually rebuilt every evening.