Caddisflies of Sulawesi, Indonesia: Historical Distributions and New Data from the Tondono and Tengah River Watersheds

Situated between the Wallace and Weber lines of biogeography, the island of Sulawesi is a global hotspot of endemism for many animal groups, including caddisflies (Insecta: Trichoptera). Historical distributions of caddisflies in Sulawesi are reviewed in comparison to other areas of Southeast Asia and Indonesia (based on the previous work of Mey, Neboiss, Wells, and others). New collection data, taken in cooperation with the University of Sam Ratulangi, are presented for larvae and adults from the Tondono River and Tengah River Watersheds in North Sulawesi Province. These data are discussed in the context of current development and agricultural pressures affecting North Sulawesi's aquatic insect communities, and the potential for future conservation activities.