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 cultrata Thomson & Armitage, 2021 Fig. 6 Diagnosis. Leucotrichia cultrata is similar to L. hispida and L. viridis . The phallus of all three species shares a similar appearance with the basal loop of the median complex extended on basal supports and a ventral "bulge" to the membranous apex. The mesoventral process of sternum VII can be used to separate the three, being long and digitate in L. cultrata , bearing a tuft of prominent apical setae in L. hispida , and enlarged and apically blunt when viewed ventrally in L. viridis . Figure 6. Leucotrichia cultrata Thomson & Armitage, 2021. 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 Armitage (2021) . Material examined. Panama : Bocas del Toro Province • 2 males ; Cuenca 093; Chiriqui Grande District ; Quebrada Rambala , Rambala Jungle Lodge , 8.91627°N , 82.15469°W ; 120 m a.s.l. ; 9 Aug. 2014 ; E. Carlson , leg.; UV light trap ; in alcohol; MUPADI • ibid., 5 males ; 28 Mar. 2015 • ibid., 2 males ; 31 Mar.-11 Apr. 2015 ; Malaise trap • ibid., 17 males ; 12-15 Nov. 2017 . Chiriqui Province • 1 male ; Cuenca 102; Tierras Altas District ; Mount Totumas Cloud Forest and Biological Reserve , Quebrada Norte; 8.873613°N , 82.690512°W ; 1,709 m a.s.l. ; 10-15 Jul. 2018 ; J. Dietrich , leg.; Malaise trap ; in alcohol; MIUP • ibid., 2 males ; 8-11 Nov. 2018 ; UMSP • ibid., 1 male ; Cuenca 108; Dolega District , Rio Majagua , Banquito de Palmira , Potrerillos; 8.68083°N , 82.53250°W ; 840 m a.s.l. ; 28 Feb.-14 Mar. 2019 , Y. Aguirre , T. Rios , leg.; Malaise trap (M001); in alcohol; MUPADI • ibid., 1 male ; Quebrada Jaramillo , Finca Monterey ; 8.76320°N , 82.41383°W ; 1,214 m a.s.l. ; 8-12 May 2018 ; B. Armitage , T. Arefina-Armitage , leg.; Malaise trap ; in alcohol; MUPADI . Panama Oeste Province • 2 males ; Cuenca 115; Altos de Campana National Park , Rio Chileno , PSPSCB-PNAC-C115-2018-028; 8.71650°N , 80.00740°W ; 497 m a.s.l. ; 23-31 May 2018 ; T. Rios , Y. Aguirre , leg.; Malaise trap ; in alcohol; COZEM. Veraguas Province • 2 males ; Cuenca 097; Santa Fe District ; Santa Fe National Park ; Rio Calovebora , PSPSCB-PNSF-C097-2017-006; 8.55038°N , 81.16486°W ; 461 m a.s.l. ; 23-27 Apr. 2017 , A. Cornejo , T. Rios , E. Alvarez , C. Nieto , leg.; Malaise Trap ; in alcohol; COZEM • ibid., 1 male ; Cuenca 132; Rio Mulaba , afl. 1er Brazo , PSPSCB-PNSF-C132-2017-008; 8.51706°N , 81.12140°W ; 770 m a.s.l. ; 19-23 Apr. 2017 ; T. Rios , E. Alvarez , C. Nieto , leg.; Malaise trap ; in alcohol; COZEM . Distribution. Panama.