A review of Gnathoncus of Southeast Asia (Coleoptera: Histeridae: Saprininae)

Lackner Tomáš
Acta Entomologica Musei Nationalis Pragae 60(2): 397-409, 2020
Published online: 19th June 2020
Views: 559
Abstract: Six species of the genus Gnathoncus Jacquelin du Val, 1857 occur in the region of Southeast Asia: G. brevisternus Lewis, 1907, G. semimarginatus Bickhardt, 1920, G. vietnamicus Kryzhanovskij, 1972, G. rotundatus (Kugelann, 1792), G. nannetensis (Marseul, 1862), and the newly described G. sechuanus sp. nov. (China: Sichuan). Two rare species, G. brevisternus and G. semimarginatus, are redescribed; all species are figured and keyed. The lectotype of Gnathoncus brevisternus is designated and the species is newly reported from Vietnam and Nepal.
Key words: Coleoptera, Histeridae, Saprininae, Gnathoncus, lectotype designation, new species, Southeast Asia
Papers
Binhon atrum Pic – a junior synonym of Plastocerus thoracicus, with nomenclatural notes on Plastocerus (Coleoptera: Elateridae: Plastocerinae)A review of Gnathoncus of Southeast Asia (Coleoptera: Histeridae: Saprininae)Two new species and new records of darkling beetles of the tribe Helopini from Turkey and Cyprus (Coleoptera: Tenebrionidae)Rhagovelia species from Nosy Boraha east of Madagascar (Hemiptera: Heteroptera: Veliidae)Termitotrox icarus sp. nov. (Coleoptera: Scarabaeidae): a new termitophilous beetle from Myanmar with observations of carrying behavior by host termitesNew records of Platynectes (s. str.) diving beetles from South America with description of two new species (Coleoptera: Dytiscidae: Agabinae)Taxonomic study of the genus Epiphragma of Japan (Diptera: Limoniidae)Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern RussiaReview of the genus Cladiscus (Coleoptera: Cleridae) from Japan and Taiwan, with descriptions of two new speciesA predicted new Geotrupes from the mountains of Oaxaca, Mexico, and a description of the male of Geotrupes lobatus (Coleoptera: Geotrupidae)Trihelota, a new and unusual helotid beetle genus from mid-Cretaceous Burmese amber (Coleoptera: Helotidae)Review of two Tonnoir moth fly species, overlooked for a century (Diptera: Psychodidae: Psychodinae)The monocotyledon-feeding lace bugs of the genus Agramma from Japan (Hemiptera: Heteroptera: Tingidae)The first record of Archiclaviger in continental Asia, with description of a new species from China (Coleoptera: Staphylinidae: Pselaphinae)Dictyopharidae of Nepal (Hemiptera: Fulgoromorpha), with description of a new genusRevision of the New Zealand endemic genus Phormiobius (Coleoptera: Staphylinidae: Pselaphinae)Taxonomy, annotated new records and a checklist of Mymaridae (Hymenoptera) of Finland, with description of a new species of EustochusNew species and records of Coryphiini from China (Coleoptera: Staphylinidae: Omaliinae)Redescription of Formosan subterranean termite, Coptotermes formosanus (Blattodea: Rhinotermitidae), with three new synonyms from ChinaReview of the genus Prolactistes (Heteroptera: Cydnidae), with two new combinations, first Indonesian records and a key to species of the genus