Sphecid wasps also have a silk gland that is important in many functions, such as nest building.
They also have no silk glands and therefore they do not build webs.
This particular spitting spider features the presence of silk glands in its cephalothorax.
Other arachnids may also have silk glands in their cephalothorax, such as the pseudoscorpions.
Each spinneret has many spigots, each of which is connected to one silk gland.
There are at least six types of silk gland, each producing a different type of silk.
Tarantulas also have silk glands in their feet.
The larvae have silk glands which are located on the labium.
They use these silk glands to make silk for cocoons and shelters.
Only the larvae of insects have silk glands.