Gamma VI Spider

This is an unnamed species of giant arachnid-like creatures native to the planet Gamma VI.

Biology
They have huge red eyes which pulsate rhythmically and glow faintly in the dark. Most notably, members of this species are known for producing a sticky grey substance which covers the soil around their territory and is used to capture prey.

Appearances

 * Lost in Space, s02e04, "Forbidden World" (1966)