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Access type: UnknownAuthor: search.filters.author.Laudee, Pongsak

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    Item type:Publication,
    A New Species of Triaenodes (Trichoptera: Leptoceridae), based on morphological and molecular data, from Kaeng Khoi Waterfall, Chumphon Province, southern Thailand
    (2025-02-28)
    Laudee, Pongsak
    ;
    Malicky, Hans
    ;
    Takenaka, Masaki
    ;
    Sawangarrom, Phuwadon
    ;
    Suwannarat, Nannaphat
    A new species of Triaenodes tipmaneei sp. nov. is described and illustrated based on the male and female genitalia. The mitochondrial DNA (mtDNA) cytochrome c oxidase subunit I (COI) of the new species and of the most similar species T. themis Malicky and Prommi 2006 were analyzed. The male genitalia of Triaenodes tipmaneei sp. nov. is distinguished from other species in the genus by the shape of inferior appendages. Inferior appendages of the new species are without recurved processes; the dorsal branch is divided into a dorsal lobe and two processes, with the upper process curved upward and bifid, and the lower process slender and with pointed apex; the main body of the appendage has a short slender apicolateral process, the mesal process is short and pointed, the ventral process is stout, and the apex is pointed. The genetic distance between T. tipmaneei sp. nov. and T. themis, based on the mtDNA COI region, was 8.5 precent, indicating a large genetic differentiation between the two species.
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    Item type:Publication,
    Three new species of the genera Ceraclea Stephens and Setodes Rambur (Trichoptera: Leptoceridae) from Laos and Cambodia
    (2024-06-17)
    Laudee, Pongsak
    ;
    Malicky, Hans
    ;
    Takenaka, Masaki
    ;
    Suwannarat, Nannaphat
    ;
    Kong, Chamroeun
    Three new species of Leptoceridae were described from the Lower Mekong tributaries, namely Ceraclea luangnamthaensis n. sp., Setodes xangthevadaensis n. sp. from Laos, and Setodes mongkondechsawati n. sp. from Cambodia. The male genitalia of Ceraclea luangnamthaensis n. sp. are distinguished from those of other species by its preanal appendages, which are circular in lateral view. The male genitalia of Setodes xangthevadaensis n. sp. are distinguished from those of other species by their segment X, which is separated into a trifurcate apicodorsal process and two long slender apicolateral processes in dorsal view. The male genitalia of Setodes mongkondechsawati n. sp. are distinguished from those of other species by the apicodorsal process of segment X which is circular in dorsal view.