List of arthropods
Considering that the Dungeon is a dark, dank place filled with moist corners and rotting corpses, it's no surprise that it contains countless creepy-crawlies ranging in size from freakishly huge to terrifyingly gargantuan. Crawl's many arthropods are some of the weaker opponents you'll encounter, but they shouldn't be underestimated; a great many of them have poisonous bites or stings, more than a few also come with exotic and dangerous special abilities, and they tend to come in swarms. While there are some exceptions, vulnerability to Poison Magic is a common arthropod weakness. Many of them leave poisonous corpses, so Ignite Poison is also quite effective.
B Worker ant- Poisonous critters that seek out puny adventurers to drag back to their nests.
B Soldier ant- The sort of giant ant that can chomp through armour and shake off stab wounds. Extra poisonous!
B Queen ant- Although a heavy hitter in melee, her slow speed makes her much less intimidating than her minions.
y Killer bee- Painful alone and deadly in swarms, these pack hunters are a menace to the unprepared.
y Queen bee- Although extremely venomous, her lack of maneuverability makes her easy to deal with.
y Yellow wasp- Although slower than killer bees, their stings slow and paralyse their victims.
y Red wasp- An oversized yellow wasp dyed red in the blood of its victims.
y Vampire mosquito- Pesky undead insects that will happily suck the unwary dry.
B Boring beetle- Beefy, but easily avoided. They tend to turn any floor with rock walls to swiss cheese if left to their own devices.
B Boulder beetle- These tanks normally lumber along slowly, but they can suddenly start rolling at break-neck speed.
Moths & Butterflies
b Butterfly- Harmless and pretty and occasionally in the way.
y Ghost moth- Invisible psychic predators with debilitating poisons.
s Spider- Scuttling poisonous pests. Individually weak, but they come in swarms.
s Trapdoor spider- Cowardly vermin that strike those who walk past their hiding places and retreat underground when injured.
s Redback- A notoriously venomous arachnid, capable of seriously poisoning even those who are resistant.
s Wolf spider- A powerful spider capable of tearing foes apart even without its venom.
s Orb spider- Cowardly, unnatural spiders that launch orbs of devastating energy at their foes.
B Giant cockroach- Common pests of the upper floors of the Dungeon, they're mostly harmless.
s Giant mite- Bloated, poisonous vermin found in the early Dungeon.
s Scorpion- One of the earliest opponents capable of seriously poisoning careless adventurers.
s Giant centipede- Although fragile, their poison stings can be hazardous.
s Demonic crawler- Swift, hellish arthropods that partially resist most elements, including poison.
s Emperor scorpion- The beefiest arthropod of them all, they shrug off blows that would fell lesser bugs.