This insectoid creature resembles a vaguely-humanoid scorpion without a stinger. It has scythe-like blades instead of pincers and a row of spines along its back.
AC 24, touch 12, flat-footed 20 (+4 Dex, +12 natural, –2 size)
Speed 40 ft., burrow 20 ft.
3/day—black tentacles (4th), creeping doom (7th)
Str 26, Dex 18, Con 26, Int 21, Wis 17, Cha 22
Environment temperate or warm hills
Extradimensional Womb (Ex) The interior of a hivespawn queen's body is linked to an extradimensional space in which she stores eggs and recent hatchlings. Only hivespawn eggs and hivespawn hatchlings can enter this space, which can easily hold two dozen of each. Only one egg or hivespawn hatchling can enter or exit the space per round. Eggs and hatchlings stored in the space do not count against the queen's carrying capacity.
Receptive (Ex) A hivespawn doesn't speak or understand any language, but creatures with telepathy can use that special quality to communicate with hivespawn as if they had a language.
Spines (Ex) A hivespawn can loose a number of dart-like spines indicated in its ranged attack from its body as a standard action with a toss of its head or a lash of its tail. Make an attack roll for each spine—all targets must be within 30 feet of each other. The spines have a range increment of 120 ft. The creature can launch only 24 spines in any 24-hour period.
Terrain Manipulation (Su) As a full-round action that doesn't provoke attacks of opportunity, a hivespawn queen can thrust her hands into the ground to superimpose the features of her extradimensional womb onto the world around her. For as long as the queen remains in her space, and for 1 minute thereafter, all terrain within 100 feet of her is coated in alien sludge. All surfaces within that area count as difficult terrain for creatures other than hivespawn, and all hivespawn within that area that don't already have fast healing gain fast healing 1.