Ankheg

Ankhegs are huge insects, 10 to 20ft long, resembling grasshoppers with vicious mandibles. They burrow through the ground, often in farmlands as well as in caverns. Once per day, an ankheg can squirt digestive acids for 5d6 points of damage (save for half), but this is a defense not used in normal hunting.

Ankheg			Damage Tracks: HD 3 0MAM HD 4 00MAM HD 5 000MA M HD 6 0000M AM HD 7 00000 MAM HD 8 00000 0MAM
giant insect	A = Spit Acid - 5d6 damage (save for half) 1/day M = Check Morale at -2 penalty
HD 3 to 8	AC 2[17] underside 4[15]		Atk 1 bite (3d6)		Move 12 (burrow 6)
HD 3 Save 14 HD 4 Save 13 HD 5 Save 12 HD 6 Save 11 HD 7 Save 9 HD 8 Save 8	MOR		CL/XP HD 3 4/120XP HD 4 5/240XP HD 5 6/400XP HD 6 7/600XP HD 7 8/800XP HD 8 9/1100XP		Hoard Class: XIX
Special: Spits acid 5d6 (1/day, save for half)
If an ankheg nest is found, there is a 50% chance that a female will be present in the nest (one HD less than the male; 3 HD minimum). If a female is present, there is a variable chance, by season, that a clutch of eggs (or babies) will be present. If the young are threatened, both the male and female ankhegs will fight ferociously. They will attack twice per round with their terrible bite at +2 to hit. They will never check morale when defending their young. Ankheg eggs and babies are of some interest to wizards and alchemists. They will typically pay 50 to 300 gp each if in viable condition.
Fall		0% eggs		10% 1d3 babies (1 HD, 1d6 bite, no acid)
Winter		0% eggs		5% 1d3 babies (1 HD, 1d6 bite, no acid)
Spring		50% 2d4 eggs		0% babies
Summer (eggs or babies only; never both at the same time; roll for babies first)		30% 2d4 eggs		30% 1d6 babies (1 HD, 1d6 bite, no acid)