Harpie Bug Swarm

Harpie (or Harpy) Bug Swarms are Slayer monsters that require level 33 Slayer to kill. A Lit bug lantern is required to do damage on them.

Players often kill them because they have a good chance to drop level 2 clue scrolls, and have relatively low defence, they are also a good source for fire runes and green charms. They are aggressive to players under level 93. If you use the fairy ring you will want to bring some food because there is a level 83 monster that is aggressive along the way. If you are under level 107 combat you will also be attacked by jorges. You will need some agility to cross the log. If you fail you will get damaged.

Strengths and weaknesses
Harpie Bug Swarms use rapid melee attacks and do quite a bit of damage for their combat level. If a lit bug lantern is not equipped any attacks on them will be ineffective, although if using a poisoned weapon, the poison will affect them and can kill them if given enough time. A fast-hitting weapon, like a scimitar, helps to get rid of them quickly before they do too much damage.

Alternatively, players can mage or range Harpie Bug Swarms from the Eastern side of the stream at the eastern end of their habitat, to avoid taking any damage from them, although this does mean expenditure in terms of runes or ammo for ranged weapons. Note: Ava's device, a reward from Animal Magnetism quest, does not work across the stream to retrieve bolts.

Another place to mage or range them is north of the brown ridge. They will not come too far in between the sea and ridge.

Although not in a multi-combat area, a Cannon can be used to take down the swarms in one hit fairly often.

Another viable strategy, for those that have finished the Tai Bwo Wannai Trio quest, is to use Protect from Melee prayer, and refilling prayer points at the Tribal statue in the village, a short run away. In this case, prayer boosting armour is recommended to increase fighting time.

It seems that lunge/stab attacks are not very effective against them.
 * Karamja

Other
Since they are close to the Karamja general store, it is possible to buy food there as well as sell drops. However, if one wishes to use a bank, there is one in the TzHaar City, found beneath Karamja Volcano, and the route is made shorter with the mithril grapple shortcut (53 agility, 42 ranged and 21 strength required) on a peninsula just east of the cliff. If you don't wish to or cannot use that shortcut, you may also bank in Shilo Village after you complete the quest of the same name. Also, Rionasta in Tai Bwo Wannai Village can send items to the bank for 10 trading sticks per item, although he cannot take items out of the bank. The bank in Edgeville is also close, if you can use fairy rings, Code: DKP.

After a while these monsters will become non-aggressive.

Weapons/Armour

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Runes

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Uncut gems

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Other

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Trivia

 * If you look closely, whenever you hit the swarm for damage, a splash of white liquid will appear at the bottom of the swarm. This may be blood or dead bugs.
 * These bugs slightly resemble a Bloated Leech, though shrunken and a different colour.
 * You can kill the bugs without a lit bug lantern by using poisoned weapons, but it will not count as a kill for slayer or give any drops.

Harpyien-Käferschwarm