| Giant Ant, Queen | Vermin | 2 | 4d8+4 (22 hp) | MM | 3.5 | | |
| Giant Ant, Soldier | Vermin | 2 | 2d8+2 (11 hp) | MM | 3.5 | | |
| Giant Ant, Worker | Vermin | 1 | 2d8 (9 hp) | MM | 3.5 | | |
| Giant Bee | Vermin | 1 | 3d8 (13 hp) | MM | 3.5 | | |
| Giant Bombardier Beetle | Vermin | 2 | 2d8+4 (13 hp) | MM | 3.5 | | |
| Giant Fire Beetle | Vermin | 0.33 | 1d8 (4 hp) | MM | 3.5 | | |
| Giant Praying Mantis | Vermin | 3 | 4d8+8 (26 hp) | MM | 3.5 | | |
| Giant Stag Beetle | Vermin | 4 | 7d8+21 (52 hp) | MM | 3.5 | | |
| Giant Wasp | Vermin | 3 | 5d8+10 (32 hp) | MM | 3.5 | | |
| Monstrous Centipede, Colossal | Vermin | 9 | 24d8+24 (132 hp) | MM | 3.5 | | |
| Monstrous Centipede, Gargantuan | Vermin | 6 | 12d8+12 (66 hp) | MM | 3.5 | | |
| Monstrous Centipede, Huge | Vermin | 2 | 6d8+6 (33 hp) | MM | 3.5 | | |
| Monstrous Centipede, Large | Vermin | 1 | 2d8+3 (12 hp) | MM | 3.5 | | |
| Monstrous Centipede, Medium | Vermin | 0.5 | 1d8 (4 hp) | MM | 3.5 | | |
| Monstrous Centipede, Small | Vermin | 0.25 | ½d8 (2 hp) | MM | 3.5 | | |
| Monstrous Centipede, Tiny | Vermin | 0.125 | ¼d8 (1 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Colossal | Vermin | 12 | 32d8+96 (240 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Gargantuan | Vermin | 10 | 20d8+60 (150 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Huge | Vermin | 7 | 10d8+20 (65 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Large | Vermin | 3 | 5d8+10 (32 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Medium | Vermin | 1 | 2d8+2 (11 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Small | Vermin | 0.5 | 1d8+1 (5 hp) | MM | 3.5 | | |
| Monstrous Scorpion, Tiny | Vermin | 0.25 | ½d8+2 (4 hp) | MM | 3.5 | | |
| Monstrous Spider, Colossal | Vermin | 11 | 32d8+64 (208 hp) | MM | 3.5 | | |
| Monstrous Spider, Gargantuan | Vermin | 8 | 16d8+32 (104 hp) | MM | 3.5 | | |
| Monstrous Spider, Huge | Vermin | 5 | 8d8+16 (52 hp) | MM | 3.5 | | |
| Monstrous Spider, Large | Vermin | 2 | 4d8+4 (22 hp) | MM | 3.5 | | |
| Monstrous Spider, Medium | Vermin | 1 | 2d8+2 (11 hp) | MM | 3.5 | | |
| Monstrous Spider, Small | Vermin | 0.5 | 1d8 (4 hp) | MM | 3.5 | | |
| Monstrous Spider, Tiny | Vermin | 0.25 | ½d8 (2 hp) | MM | 3.5 | | |
| Swarm, Centipede | Vermin | 4 | 9d8-9 (31 hp) | MM | 3.5 | | |
| Swarm, Locust | Vermin | 3 | 6d8-6 (21 hp) | MM | 3.5 | | |
| Swarm, Spider | Vermin | 1 | 2d8 (9 hp) | MM | 3.5 | | |