The Trichoptera of Panama XX. Six new microcaddisflies (Trichoptera: Hydroptilidae) and two new country records.

Six new species of microcaddisflies (Trichoptera: Hydroptilidae) are herein described and illustrated: Cerasmatrichia armitagei sp. n., Metrichia hocica sp. n., Neotrichia majagua sp. n., N. solapa sp. n., Ochrotrichia latigiza sp. n., and O. ngabebuglea sp. n. These species were collected in western Panama from the Río Majagua watershed descending from Volcán Barú and Quebrada Martínez, a first-order stream in the Río Guabo watershed of the Bosque Protector Palo Seco. Metrichia quadrata (Flint, 1972) and Ochrotrichia filiforma Flint, 1972 are recorded for the first time from Panama. Two recently described species, Metrichia trebeki Harris and Armitage, 2019 and Ochrotrichia alma Thomson and Armitage, 2021 are reported for the second time from the country. The Republic of Panama now has 487 species of caddisflies distributed among 15 families and 56 genera. [ABSTRACT FROM AUTHOR]