Beetles are important pollinators in a lowland dipterocarp forest in Southeast Asia. Most of canopy and emergent dipterocarps are pollinated by beetles feeding on floral tissues. Some understory trees and forest floor herbs are pollinated by different types of beetles. Homalomena propinqua (Araceae) is pollinated by two specias of beetles. One of them, Parastasia sp. (Scarabaeidae), stays inside the spathe chamber and feeds on staminodes.