ZooKeys 973: 35–68 (2020) A peer-reviewed open-access journal doi: 10.3897/zookeys.973.54026 RESEARCH ARTICLE https://zookeys.pensoft.net Launched to accelerate biodiversity research The Pleidae (Hemiptera, Heteroptera) of Thailand, with the descriptions of two new species and a discussion of species from Southeast Asia Jerry L. Cook1, Robert W. Sites2, Akekawat Vitheepradit3 1 Department of Biological Sciences, Sam Houston State University, Huntsville, TX 77341, USA 2 Enns Ento- mology Museum, University of Missouri, Columbia, MO 65211, USA 3 Department of Entomology, Kasetsart University, Bangkok 10900 Thailand Corresponding author: Jerry L. Cook (
[email protected]) Academic editor: L. Livermore | Received 7 May 2020 | Accepted 2 July 2020 | Published 5 October 2020 http://zoobank.org/0D8FEF96-BC1B-437E-81AB-D70BFCDB314A Citation: Cook JL, Sites RW, Vitheepradit A (2020) The Pleidae (Hemiptera, Heteroptera) of Thailand, with the descriptions of two new species and a discussion of species from Southeast Asia. ZooKeys 973: 35–68. https://doi. org/10.3897/zookeys.973.54026 Abstract The family Pleidae is represented in Thailand by four species in the genus Paraplea. Two of these species, P. frontalis and P. liturata, are widespread and relatively common in Southeast Asia. Two other species, P. lateromaculata Cook, sp. nov. and P. melanodera Cook, sp. nov., are described and only known from Thai- land. Full descriptions are provided for all four species. The distributions of these species are discussed, with an emphasis on Thailand.Paraplea frontalis, P. liturata, and P. lateromaculata Cook, sp. nov. are relatively widespread within Thailand and have overlapping distributions whereasP. melanodera Cook, sp.