The study area included more than 100,000km2, focusing on provinces north and west of approximately 17°N and 102°E, respectively. Although several hundred streams were sampled, we focused our sampling efforts on approximately 20 intensive sites. Most were sampled monthly for 1-1.5 years, using a variety of collection methods (e.g., benthic samples for aquatic stages; black light traps, malaise traps and sweep-netting for terrestrial adults). Other sites were sampled less frequently, typically once each during the dry season, monsoon, and post-monsoon.