While most jumping spiders prey mainly on insects and by active hunting,[27]:340 females of Portia also build webs to catch prey directly.[2][26] These capture webs are funnel-shaped and widest at the top[19][6]:513 and are about 4,000 cubic centimetres in volume.[3]:429???431 The web is initially built in about 2 hours, and then gradually made stronger.[16]:239 A Portia often joins her own web on