Five new species and one new record of armored spiders (Araneae, Tetrablemmidae) from Thailand

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  Five new species and one new record of armored spiders (Araneae, Tetrablemmidae) from Thailand Abstract Five new cave-dwelling species and one newly recorded litter-dwelling species belonging to the family Tetrablemmidae are described from Thailand, i.e., Ablemma erna Lehtinen, 1981 (♂♀), A. theppratan Tong & Li, sp. nov . (♂♀), A. yamae Tong & Li, sp. nov . (♂♀), Shearella khaoplu Tong & Li, sp. nov . (♂), S. thamphothisat Tong & Li, sp. nov . (♂) and Tetrablemma lorkor Tong & Li, sp. nov . (♂). Diagnoses and illustrations for all six species are given. Shi S, Bian D, Tong Y, Li S (2026) Five new species and one new record of armored spiders (Araneae, Tetrablemmidae) from Thailand. ZooKeys 1279: 285-310. https://doi.org/10.3897/zookeys.1279.189587

A new contribution to the study of subfamily Tridenchthoniinae Balzan, 1892 (Pseudoscorpiones: Chthoniidae) from the late Eocene Baltic amber with the description of Baltochthonius andrushchenkoi gen. et sp. nov. and Heterolophus eridanus sp. nov.

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A new contribution to the study of subfamily Tridenchthoniinae Balzan, 1892 (Pseudoscorpiones: Chthoniidae) from the late Eocene Baltic amber with the description of Baltochthonius andrushchenkoi gen. et sp. nov. and Heterolophus eridanus sp. nov.

Abstract

Here we describe two new fossil species and one new genus of pseudoscorpions, found in the late Eocene Baltic amber. Baltochthonius andrushchenkoi gen. et sp. nov. and Heterolophus eridanus sp. nov. are assigned to the subfamily Tridenchthoniinae (Pseudoscorpiones: Chthoniidae). We present an updated diagnostic key for the tribes, genera and subgenera of Tridenchthoniinae. The biogeographic, paleohabitat and ecological features of new species are presented and compared to the related extinct and extant species of the subfamily Tridenchthoniinae.

Turbanov, I.S., Kolesnikov, V.B., Shadrin, D.S. & Vorontsov, D.D. (2026) A new contribution to the study of subfamily Tridenchthoniinae Balzan, 1892 (Pseudoscorpiones: Chthoniidae) from the late Eocene Baltic amber with the description of Baltochthonius andrushchenkoi gen. et sp. nov. and Heterolophus eridanus sp. nov. Zootaxa, 5807 (1), 125–149. https://doi.org/10.11646/zootaxa.5807.1.5