Abstract
Abstract A guild of Neotropical rainforest dung- and carrion-feeding beetles (Scarabaeinae, Aphodiinae, Trogidae) at Reserva Florestal Ducke in Amazonian Brazil was inventoried using baited pitfall traps continuously for 56 weeks during September 1977 to October 1978. The 20 traps were baited with either dung or carrion, and the preservatives in the traps were solutions of either chloral hydrate or picric acid so that all combinations of bait and preservatives were present. A total of 19,416 specimens, 66 species, 20 genera, two subfamilies of Scarabaeidae (Scarabaeinae and Aphodiinae), and two families (Scarabaeidae and Trogidae) were collected during the 56-week study. The by-catch of approximately 300,000 other insects was retained at the Instituto Nacional de Pesquisas da Amazonia (INPA) for further studies. In the dung traps, 14,413 specimens were collected (74% of all scarabaeoids collected). In the carrion traps, 5,003 specimens were collected (26% of all scarabaeoids collected). The mean number of...
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