Ujadani

Ujadani are very small, orange bugs with a 5mm body length that scuttle about in swarms of many and are not documented in the Piklopedia as other enemies in the game are. Upon closer examination, they appear to have tiny scuttling feet before their bulbous backs. Two swarms of 70 can be found on the days they appear. One of the swarms is located near the entrance of the Hole of Heroes, and the other is in the black stone area to the right of the black gate leading to the Dream Den, on the edge of the clearing of Creeping Chrysanthemums. Since they appear so rarely, some players go through the game without knowing of their existence.

The creatures can be attacked – this is similar to the way Pikmin attack rubble and nectar weed – and doing so releases vast quantities of nectar and spray drops. This makes the secret bugs the best source of sprays and nectar in the game. Non-White Pikmin are affected by the poison the swarms release when attacked, which acts like any other instance of poison in Pikmin 2. The insects rarely attack, however, so it's possible to beat all insects without any non-white Pikmin being poisoned.

Pikmin: Infection in Progress
The Ujadani beetles return in Pikmin: Infection in Progress, and are the main cause of the infection that has critically weakened the Distant Planet. Previously being nothing more than a way to farm vast amounts of Nectar and Sprays in Pikmin 2, Ujadani have unintentionally caused an epidemic that had infected wildlife and spread its plague to the farthest reaches on the Pikmin Planet. Although the numbers of Ujadani beetles had basically stayed the same over the course of Pikmin 2 and all the way up to Pikmin: Infection in Progress, the number of victims had increased dramatically. Most of the wildlife encountered in-game have been severely affected by the highly-contagious disease the Ujadani have passed, and few are naturally immune or simply carriers of the disease. Some of these specimens are the Withering Blowhog and Phosbats. Other species have ultimately weakened or gained strengths, or have gained no new effects. Some examples are the Ghoulish Snitchbug, Vampiric Bulbears and their young, and the Undead Water Dumple respectively.