New species of caddisflies (Insecta: Trichoptera) from emergence traps at streams in central Palawan, Philippines

A groundbreaking study has revealed the presence of 17 new species of caddisflies (Trichoptera) in the streams of Puerto Princesa Subterranean River National Park, Palawan, Philippines. These discoveries, including Orthotrichia ligula and Tinodes sanctipauli among others, were made through emergence traps deployed between 2000 and 2001 along the Cabayugan and Panaguman Rivers. The research not only expands the known biodiversity of the region but also records new subfamilies (Hyalopsychinae, Pseudoneureclipsinae) and a genus (Pahamunyana) for the first time in Palawan. Detailed illustrations of male genitalia, supplemented by female genitalia where available, provide critical taxonomic insights. This study underscores the ecological significance of UNESCO-listed Puerto Princesa Subterranean River National Park as a hotspot for insect diversity.

Mey, W., & Freitag, H. (2019). New species of caddisflies (Insecta: Trichoptera) from emergence traps at streams in central Palawan, Philippines. Aquatic Insects, 40(3), 207–235. https://doi.org/10.1080/01650424.2019.1617423