The Trichoptera of Panama. XIX. Additions to and a review of the genus Leucotrichia (Trichoptera, Hydroptilidae) in Panama Author Thomson, Robin E. https://orcid.org/0000-0002-5883-2040 University of Minnesota, Department of Entomology, 1980 Folwell Ave., St. Paul, MN 55108, USA Author Armitage, Brian J. https://orcid.org/0000-0003-3182-1533 Museo de Peces de Agua Dulce e Invertebrados, Universidad Autonoma de Chiriqui, David, Panama tobikera89@gmail.com Author Harris, Steven C. Department of Biology and Geosciences, Clarion University, Clarion, PA, USA text ZooKeys 2022 2022-07-11 1111 425 466 http://dx.doi.org/10.3897/zookeys.1111.77371 journal article http://dx.doi.org/10.3897/zookeys.1111.77371 1313-2970-1111-425 8474125F447546C3A6DCC46F7D038BDC 028D93AD33835AD589E06F29DAE7580C Leucotrichia chiriquiensis Flint, 1970 Figs 2B , 4 Diagnosis. Leucotrichia chiriquiensis is most similar to L. botosaneanui , L. hispida , and L. viridis , based on a similar appearance of the phallus, as discussed under L. botosaneanui . This species can most swiftly be identified as distinct from the others based on the structural modifications of the antennae and head. Figure 4. Leucotrichia chiriquiensis Flint, 1970. Male genitalia: A segments VII-VIII and segment IX margin, lateral B segments IX-X, lateral (base of phallus crosshatched) C segments IX-X, dorsal D segments VII-IX, ventral E phallus, lateral F phallus, dorsal. Modified from Thomson and Holzenthal (2015) . Material examined. Panama : Chiriqui Province • 2 males ; Cuenca 102; Renacimiento District ; La Amistad International Park , Rio Candela , Finca Felix , PSPSCB-PILA-C102-2017-021; 8.890557°N , 82.61201°W ; 2,128 m a.s.l. ; 25 Jan. 2015 ; C. Nieto , E. Perez , A. Cornejo , leg.; UV light trap ; in alcohol; COZEM • ibid ., 2 males ; Tierras Altas District ; Mount Totumas Cloud Forest and Biological Reserve , Quebrada Norte ; 8.873613°N , 82.690512°W ; 1,709 m a.s.l. ; 26 Apr.-10 May 2015 ; B. Armitage , T. Arefina-Armitage , leg.; Malaise trap ; MUPADI • ibid ., 5 males ; 28 Jan.-2 Feb. 2018 ; J. Dietrich , leg.; Malaise trap ; MUPADI • ibid ., 3 males ; 16-20 Feb. 2018 ; MUPADI • ibid ., 1 male ; 16-20 Mar. 2018 ; MUPADI • ibid ., 1 male ; 10-15 Jul. 2018 ; MUPADI • ibid ., 2 males ; 9-12 Sep. 2018 ; MUPADI • ibid ., 2 males ; 8-11 Nov. 2018 ; UMSP. Distribution. Panama.