The Trichoptera of Panama XXIV. Fifteen new species and two new country records of the caddisfly genus Neotrichia (Trichoptera, Hydroptilidae), with a key to all known Panamanian species Author Harris, Steven C. https://orcid.org/0000-0002-6432-7462 Museo de Peces de Agua Dulce e Invertebrados, Universidad Autonoma de Chiriqui, David, Panama & Department of Biology, Pennsylvania Western University-Clarion, Clarion, PA 16214, 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 & Sistema Nacional de Investigacion de Panama (SNI), Panama, Panama tobikera89@gmail.com Author Rios Gonzalez, Tomas A. https://orcid.org/0000-0003-0590-6488 Museo de Peces de Agua Dulce e Invertebrados, Universidad Autonoma de Chiriqui, David, Panama text ZooKeys 2024 2024-01-03 1188 47 90 http://dx.doi.org/10.3897/zookeys.1188.111346 journal article http://dx.doi.org/10.3897/zookeys.1188.111346 1313-2970-1188-47 C0589D9E270749528673AC6A6E6D3C77 745B618C11F253D9AA32E48D492F12ED Neotrichia spangleri sp. nov. Fig. 15 Type locality. Panama: Chiriqui Province : Cuenca 108, Boquete District, Bajo Boquete, Quebrada Cheche, Hotel Fundadores; 8.77195°N , 82.43308°W ; 1200 m a.s.l. Type material. Holotype : ♂, Panama: Chiriqui Province : Cuenca 108, Boquete District, Bajo Boquete, Quebrada Cheche, Hotel Fundadores; 8.77195°N , 82.43308°W ; 1200 m a.s.l.; 29.v.1983; P. Spangler, R. Faitoule, W. Steiner leg.; MUPADI-015-T-2023 (in alcohol). Paratype . Panama • ♂; same as holotype; MUPADI-016-T-2023 (in alcohol). Other material examined. Panama • 2 ♂♂ ; Chiriqui Province : Cuenca 104, Bugaba District , La Concepcion , Rio Guigala , Puente antiqua vias del Ferrocarril ; 8.51845°N , 82.64280°W ; 209 m a.s.l. ; 12.iii.2021 ; T. Rios , Y. Aguirre leg. ; UV light trap • 2 ♂♂ ; ibid., except Cuenca 108, Boqueron District , Rio Chirigagua , Puente antes de llegar al Hotel Los Delfines ; 8.48139°N , 82.54788°W ; 128 m a.s.l. ; 12.iv.2021 ; T. Rios , Y. Aguirre leg. ; UV light trap • 4 ♂♂ ; ibid., except David District , San Pablo Viejo , puente via Interamericana antes de llegar a la entrada de Bagala , Rio Platanal ; 8.46416°N , 82.52030°W ; 84 m a.s.l. ; 12.ii.2021 ; T. Rios , Y. Aguirre leg. ; UV light trap • ♂ ; ibid., except 12.iii.2021 • 2 ♂♂ ; ibid., except 12.iv.2021 • 11 ♂♂ ; ibid., except 6.x.2021 • 4 ♂♂ ; ibid., except 6.xi.2021 • 2 ♂♂ ; Darien Province ; Cuenca 156, Chepigana District , PND, Rio Tuira , Boca de Cupe ; 8.01732°N , 77.72417°W ; 150 m a.s.l. ; 18.ii.1985 ; leg. not given; UV light trap (NMNH). Diagnosis. The pair of spines at the phallic apex and the posterolateral process from segment IX places this species in the N. collata group of Keth et al. (2015) with similarity to N. hiaspa (Mosely, 1937) and N. carlsoni Harris & Armitage, 2019, both of which occur in Panama. The new species is separated by the shorter and wider inferior appendage, the rounded posterolateral process from segment IX, which is thin and acute in the other species, and the structure of the subgenital plate. Description. Male. Total length 1.3-1.5 mm ( n = 10), 18 antennal segments, wings and body brown in alcohol. Genitalia (Fig. 15 ). Abdominal segment VIII annular. Segment IX in lateral view anteriorly tapering to an elongate apodeme, posteriorly widening mesally, which gives rise to a rounded posterolateral process; ventrally deeply incised anteriorly, posteriorly with lateral incisions forming mesal ovate structure; posterolateral processes thin, tapering to acute apices; dorsally with posterior shallowly incised laterally, setose mesally. Segment X in lateral view tapering to acute distal point; in dorsal view wide basally, rounded laterally to truncate apex. Subgenital plate in lateral view narrow, apex downturned and acute; in dorsal and ventral view wide basally, apex with mesal emargination, flanked by pair of setae. Bracteole in lateral view narrow basally, widening distally to rounded apex; in ventral and dorsal views nearly parallel-sided, curving on outer margin. Inferior appendage short, wide basally, tapering distally to broadly pointed apex; in ventral view rectangular, apex tapered to rounded point. Phallus in dorsal view tubular, bearing short paramere encircling shaft at midlength, apex with pair of elongate sclerotized rods fused basally, one rod ~ 1/2 length of other and curved. Figure 15. Neotrichia spangleri sp. nov., male holotype, genitalia A left lateral B ventral C dorsal D phallus, dorsal. Distribution. Panama: Chiriqui Province ( Boqueron , Boquete, and Bugaba districts); Darien Province (Chepigana District). Etymology. The species name honors the memory of Dr Paul Spangler of the National Museum of Natural History, who collected some of the specimens. The name is a noun in the genitive case.