They catch small winged insects such as mosquitoes, flies or moths on the wing. All spiders are predators. They feed on a wide variety of insects and other invertebrates. All spiders spin silk, but not all spiders make a web to trap their prey. Some spiders are active hunters, such as wolf spiders, jumping spiders or crab spiders.
Crab spiders have their legs directed forwards, so they resemble crabs.
They are often brightly colored, and sit and wait on flowers for unsuspecting insects to visit. Other arthropods are also predators of insects, including sun spiders, scorpions, whip scorpions, centipedes, and predatory mites. The importance of these creatures in controlling pest insects is often ignored. Every fisherman knows to use flies to catch a trout. Amphibians - Frogs feed on a number of insects.