Beetle, Knell, Lesser (CR 5)

Medium Vermin
Alignment: Always neutral
Initiative: +1 (Dex); Senses: darkvision 60 ft., scent, Listen +6, and Spot +6

AC: 20 (+1 Dex, +9 natural), touch 11, flat-footed 19
Hit Dice: 6d8+24 (51 hp)
Fort +9, Ref +3, Will +2
Speed: 40 ft., burrow 10 ft.
Space: 5 ft./5 ft.
Base Attack +4; Grapple +8
Attack: Claw +8 melee
Full Attack: 2 claws +8 melee and bite +6 melee
Damage: Claw 1d10+4, bite 1d6+2
Special Attacks/Actions: Rend 2d10+6, screech, shake the earth, trample 2d8+6
Abilities: Str 18, Dex 12, Con 18, Int -, Wis 11, Cha 11
Special Qualities: immunity to sonic, sonic healing, vermin traits
Feats: Alertness; Improved Natural Attack (claw); Multiattack
Skills: Balance +5, Jump +8, Listen +6, and Spot +6
Advancement: -
Climate/Terrain: Underground
Organization: Solitary or colony (12-24 plus 3-12 knell beetles)
Treasure: None

Source: Monster Manual III

Lesser knell beetles are the equivalent of the worker drones in a beehive. They scavenge for food, build and expand the nest, and serve as frontline defenders if the colony is attacked. Although not nearly as potent as the normal knell beetles, in groups, the lesser versions can be nearly as deadly. A lesser knell beetle measures 4-5 feet long and weighs 180-200 pounds.