taxonID	type	description	language	source
B447878BFFE94E5403DC3D17FE4BF867.taxon	description	Figure 1.	en	Kaewwong, Pimpajee, Kamchoo, Kanda, Tojo, Koji, Takenaka, Masaki, Malicky, Hans, Laudee, Pongsak (2026): A new species of caddisfly, Leptocerus bannamradensis (Trichoptera: Leptoceridae), from Ban Nam Rad Spring, Surat Thani Province, based on morphological and molecular data. Zootaxa 5814 (4): 576-583, DOI: 10.11646/zootaxa.5814.4.8, URL: https://doi.org/10.11646/zootaxa.5814.4.8
B447878BFFE94E5403DC3D17FE4BF867.taxon	materials_examined	Type material. Holotype male (PSUNHM). Thailand, Surat Thani Province, Khiri Rat Nikhom, Ban Thamniap, Ban Nam Rad 2, 8 ° 50 ' 27.8 " N 98 ° 57 ' 50.7 " E, ca. 100 m a. s. l., 9 March 2025, leg. Pimpajee Kaewwong	en	Kaewwong, Pimpajee, Kamchoo, Kanda, Tojo, Koji, Takenaka, Masaki, Malicky, Hans, Laudee, Pongsak (2026): A new species of caddisfly, Leptocerus bannamradensis (Trichoptera: Leptoceridae), from Ban Nam Rad Spring, Surat Thani Province, based on morphological and molecular data. Zootaxa 5814 (4): 576-583, DOI: 10.11646/zootaxa.5814.4.8, URL: https://doi.org/10.11646/zootaxa.5814.4.8
B447878BFFE94E5403DC3D17FE4BF867.taxon	etymology	Etymology. Named for Ban Nam Rad Spring, Surat Thani Province	en	Kaewwong, Pimpajee, Kamchoo, Kanda, Tojo, Koji, Takenaka, Masaki, Malicky, Hans, Laudee, Pongsak (2026): A new species of caddisfly, Leptocerus bannamradensis (Trichoptera: Leptoceridae), from Ban Nam Rad Spring, Surat Thani Province, based on morphological and molecular data. Zootaxa 5814 (4): 576-583, DOI: 10.11646/zootaxa.5814.4.8, URL: https://doi.org/10.11646/zootaxa.5814.4.8
B447878BFFE94E5403DC3D17FE4BF867.taxon	description	Description. Length of each male forewing 4 mm; specimens in alcohol with head, thorax, abdomen, and legs black. Forewings black and white. Male genitalia (Figs. 1 C – 1 D). Segment IX somewhat triangular in lateral view (Fig. 1 B); in ventral view (Fig. 1 C), sternum rectangular with concave apically. Segment X in dorsal view (Fig. 1 A) divided at the base into two processes, each straight, lancet-like, acute apically; in lateral view (Fig. 1 B) lancet-like, very long, curved ventrad, acute apically. Preanal appendages needle-like, as long as segment X in dorsal and lateral view (Fig. 1 A – 1 B). Inferior appendages in lateral view bipartite with claw-like, long, strongly ventradly curved basodorsal process with an acute tip and a basoventral tooth, main body of inferior appendages straight, long with with dentate medial process and dark acute apical tooth projecting dorsad (Fig. 1 B); main body of inferior appendages in ventral view (Fig. 1 C) long, ovoid, tapering in steps towards the tip with dark acute apical tooth, basodorsal processes long, slender, with acute tips bent 90 ° laterad. Phallus long, slender, apically acute in lateral view (Fig. 1 D).	en	Kaewwong, Pimpajee, Kamchoo, Kanda, Tojo, Koji, Takenaka, Masaki, Malicky, Hans, Laudee, Pongsak (2026): A new species of caddisfly, Leptocerus bannamradensis (Trichoptera: Leptoceridae), from Ban Nam Rad Spring, Surat Thani Province, based on morphological and molecular data. Zootaxa 5814 (4): 576-583, DOI: 10.11646/zootaxa.5814.4.8, URL: https://doi.org/10.11646/zootaxa.5814.4.8
B447878BFFE94E5403DC3D17FE4BF867.taxon	diagnosis	Diagnosis. Males of the new species are similar in their terminalia to L. glaukos Malicky & Chantaramongkol 2002 (redraw from Malicky 2010) known from Sai Yok Waterfall, Kanchanaburi Province. The new species can be readily distinguished from its congener based on the inferior appendages: the basodorsal processes of the inferior appendages are digitate, straight, as long as the main body of the inferior appendage and have a blunt tip in L. glaukos (Fig. 1 E). The basodorsal processes of the inferior appendages of the new species are strongly curved ventrad with a pointed apex.	en	Kaewwong, Pimpajee, Kamchoo, Kanda, Tojo, Koji, Takenaka, Masaki, Malicky, Hans, Laudee, Pongsak (2026): A new species of caddisfly, Leptocerus bannamradensis (Trichoptera: Leptoceridae), from Ban Nam Rad Spring, Surat Thani Province, based on morphological and molecular data. Zootaxa 5814 (4): 576-583, DOI: 10.11646/zootaxa.5814.4.8, URL: https://doi.org/10.11646/zootaxa.5814.4.8
