New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data

Three new species of Trichosetodes, namely T. carmelae sp. nov., T. katiengensis sp. nov. and T. ratanakiriensis sp. nov. are described and illustrated by male specimens. The male genitalia of T. carmelae sp. nov. can be distinguished from the other 16 species of the genus found in Southeast Asia by...

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Main Authors: Pongsak Laudee, Hans Malicky, Chamroeun Kong, Masaki Takenaka, Koji Tojo
Format: Article
Language:English
Published: Pensoft Publishers 2023-10-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/105716/download/pdf/
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author Pongsak Laudee
Hans Malicky
Chamroeun Kong
Masaki Takenaka
Koji Tojo
author_facet Pongsak Laudee
Hans Malicky
Chamroeun Kong
Masaki Takenaka
Koji Tojo
author_sort Pongsak Laudee
collection DOAJ
description Three new species of Trichosetodes, namely T. carmelae sp. nov., T. katiengensis sp. nov. and T. ratanakiriensis sp. nov. are described and illustrated by male specimens. The male genitalia of T. carmelae sp. nov. can be distinguished from the other 16 species of the genus found in Southeast Asia by the shape of the phallicata. The phallicata of T. carmelae sp. nov. bears a tuft of long hairs in the middle of the dorsal edge. Trichosetodes katiengensis sp. nov. can be distinguished from the other species in Southeast Asia by the shape of the phallicata which is divided into dorsal and ventral branches in lateral view, and T. ratanakiriensis sp. nov. by the characters of the left inferior appendage and the shape of segment IX. The posterior end of the left inferior appendage of T. ratanakiriensis sp. nov. is not forked and the ventral and lateral views of the posteroventral lobes of segment IX are rounded. Illustrations of male genitalia of Trichosetodes kampongspeuensis Malicky & Kong, 2020 are provided for comparison. The molecular diversity of new Trichosetodes species was analyzed using the mitochondrial large subunit ribosomal rRNA gene region (16S rRNA). In terms of their genetic divergence, T. ratanakiriensis sp. nov. and T. kampongspeuensis exhibited remarkable proximity, with only a 1.4% distance. On the contrary, T. carmelae sp. nov. displayed genetic disparity exceeding 6.3% when compared to both T. ratanakiriensis sp. nov. and T. kampongspeuensis.
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spelling doaj.art-c23c36564ec449f6870bd466cc35ced02023-10-14T08:11:04ZengPensoft PublishersZooKeys1313-29702023-10-01118215316410.3897/zookeys.1182.105716105716New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular dataPongsak Laudee0Hans Malicky1Chamroeun Kong2Masaki Takenaka3Koji Tojo4Prince of Songkla UniversityUnaffiliatedKampong Speu Institute of TechnologyShinshu UniversityShinshu UniversityThree new species of Trichosetodes, namely T. carmelae sp. nov., T. katiengensis sp. nov. and T. ratanakiriensis sp. nov. are described and illustrated by male specimens. The male genitalia of T. carmelae sp. nov. can be distinguished from the other 16 species of the genus found in Southeast Asia by the shape of the phallicata. The phallicata of T. carmelae sp. nov. bears a tuft of long hairs in the middle of the dorsal edge. Trichosetodes katiengensis sp. nov. can be distinguished from the other species in Southeast Asia by the shape of the phallicata which is divided into dorsal and ventral branches in lateral view, and T. ratanakiriensis sp. nov. by the characters of the left inferior appendage and the shape of segment IX. The posterior end of the left inferior appendage of T. ratanakiriensis sp. nov. is not forked and the ventral and lateral views of the posteroventral lobes of segment IX are rounded. Illustrations of male genitalia of Trichosetodes kampongspeuensis Malicky & Kong, 2020 are provided for comparison. The molecular diversity of new Trichosetodes species was analyzed using the mitochondrial large subunit ribosomal rRNA gene region (16S rRNA). In terms of their genetic divergence, T. ratanakiriensis sp. nov. and T. kampongspeuensis exhibited remarkable proximity, with only a 1.4% distance. On the contrary, T. carmelae sp. nov. displayed genetic disparity exceeding 6.3% when compared to both T. ratanakiriensis sp. nov. and T. kampongspeuensis.https://zookeys.pensoft.net/article/105716/download/pdf/
spellingShingle Pongsak Laudee
Hans Malicky
Chamroeun Kong
Masaki Takenaka
Koji Tojo
New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
ZooKeys
title New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
title_full New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
title_fullStr New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
title_full_unstemmed New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
title_short New species of the genus Trichosetodes Ulmer, 1915 (Trichoptera, Leptoceridae) from Ratanakiri province, Cambodia, based on morphological and molecular data
title_sort new species of the genus trichosetodes ulmer 1915 trichoptera leptoceridae from ratanakiri province cambodia based on morphological and molecular data
url https://zookeys.pensoft.net/article/105716/download/pdf/
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