Golden Bug

Possibly the longest sidequest in Twilight Princess involves the collecting and selling of Golden Bugs, two-of-a-kind insects scattered all across the overworld of Hyrule. A child in Hyrule Castle Town named Agitha fancies these bugs and will pay Link generously upon finding and giving her the bugs to live in her "playhouse". Collecting them all leads to two wallet upgrades, each with a higher maximum rupee capacity.

Collecting Golden Bugs
The golden bugs glow, are easier to find at night, and are attracted to Link's lantern, making them easier to catch. Some of them may be out of reach and Link will need to use the Clawshot or Gale Boomerang to collect them; the bugs can be collected in any order. The collection of golden bugs is an optional sidequest and is not required for completion of the game.

There are 12 types of Golden Bugs, and a male (♂) and female (♀) of each type, for a total of 24 to bring back to Agitha for her golden bug ball. Both male and female variations of a single bug exist relatively in the same area, so collecting a gender pair may be easier than it seems.

Rewards
Upon giving Agitha just one Golden Bug, Link receives Agitha's "happiness" and a Big Wallet, capable of carrying 600 rupees at a time. From then on, each individual bug will yield Link 50 rupees, and an male/female set will earn him 100. Upon collecting the entire set, Link receives the Giant's Wallet from the girl, a large satchel with a maximum carrying capacity of 1000 rupees. Because some items such as the Magic Armor are not obtainable without a wallet that carries more than 500 rupees, this sidequest is possibly worth the extra time needed to complete it.

Agitha's Verses
Agitha sings a short verse about each bug she receives.


 * Ant Li'l ant, li'l ant, I might mistake you for a grain and put you in my cereal...
 * Mantis Li'l mantis, li'l mantis, if I had sickles like that, I could slice onions better...
 * Butterfly Li'l butterfly, li'l butterfly, I want to be wrapped up in that powder, too...
 * Phasmid Li'l phasmid, li'l phasmid, I want to tie your long antennae into bows...
 * Dayfly Li'l dayfly, li'l dayfly, I want to take your colorful tail and make the loveliest braid ever...
 * Stag Beetle Li'l stag beetle, li'l stag beetle, your spiky pinchers are so sharp! They must feel so good...
 * Ladybug Li'l ladybug, li'l ladybug, if I was smaller, I would get on your back and we'd fly around...
 * Grasshopper Li'l grasshopper, li'l grasshopper, I'd love to tickle your belly all day long...
 * Beetle Li'l beetle, li'l beetle, I want to use that shiny shell as a pillow and fall asleep...
 * Pill Bug Li'l pill bug, li'l pill bug, I wish I was smaller so I could roll you around like a ball...
 * Snail Li'l snail, li'l snail, just once I'd like to take a bath in that slime...
 * Dragonfly Li'l dragonfly, li'l dragonfly, when you look at me with those great big eyes, I...

Trivia

 * The menu description for the male and female snails mention that possibility that they might actually be the opposite sex. This is a reference to the fact that snails are actually hermaphrodites, and so there are no male or female snails.
 * If Link has Golden Bugs in his possession that he hasn't given to Agitha and he tries to leave Agitha's Castle, she angrily mutters to his back, "I know you have bugs..."