The taxonomy of the little-known cricket genus Changiola from the subfamily Pteroplistinae is reviewed here. This genus consisted of three species, two from Malay Peninsula and one from Indochina. Here, we describe a new species from Borneo, the first from the island: Changiola sarawakensis n. sp. We also provide a key to the species, although it is likely that more species will be added to this genus with more sampling in the region.
Southeast Asia is a highly biodiverse region with many species of grasshoppers described since the 19th century. Historical species descriptions are however often not comprehensive and do not meet the modern criteria of taxonomy. Previously used characters for identification need to be re-examined. Here, we aim to revise the taxonomy of the grasshopper genus Sedulia Stål, 1878. Using morphology and simple morphometry, we compared and investigated interspecific and intraspecific variations among the two species of Sedulia. We also redescribed both species and constructed a key to species and closely related genera.
Orthoptera from Sandakan, Sabah are relatively understudied compared to some other parts of Borneo, and lack of information of species there can impede our understanding of the origins and biodiversity of orthopterans in Borneo and, in general, Southeast Asia. Based on a recent orthopteran survey in Sandakan, one new species of Lebinthus Stål is described: Lebinthus sandakan sp. nov. The male calling song of this new species is also presented. The calling song of Cardiodactylus borneoe Robillard Gorochov, 2014 is also described for the first time.
Based on material collected during recent fieldwork in eastern Sabah, the males of Nisitrus danum Robillard & Tan and Cardiodactylus variegatus Gorochov & Robillard are described for the first time, along with their calling songs. New locality records of N. danum, N. vittatus (Haan), Falcerminthus sandakan (Tan et al.), Cardiodactylus borneoe Robillard & Gorochov and C. variegatus are also presented. New material of Nisitrus species-N. danum and N. vittatus-allowed us to compare these syntopic species.
A species of scaly cricket is described here: Ornebius lupus sp. nov. from the mangrove forests in Singapore. Ornebius pullus Ingrisch, 2006 is recorded in eastern Sabah for the first time. The calling songs of Cycloptiloides bimaculatus Tan et al., 2021 and Ornebius pullus from Sabah are described. We also revise the diagnosis of Ectatoderus nigrofasciatus Tan et al., 2021 from Brunei Darussalam.
Recent fieldwork in eastern Sabah led to the discovery of new little-known crickets from the subfamily Pteroplistinae (Orthoptera, Grylloidea). Three new species are described: Tembelingiola biaculeata sp. nov. and Tembelingiola kabili sp. nov. from Sepilok; Pteroplistes silam sp. nov. from Mount Silam. Previously, the calling song of only one species of Pteroplistinae was known. Here, the calling songs of the three new species, as well as that of Pteroplistes lagrecai Gorochov, 2004, are also described for the first time. Therefore, distinctive calling songs for five species and three genera of Pteroplistinae are presently known.
Specimens representing three genera of Phaloriinae-Borneloria Gorochov, 2018, Phaloria (Papuloria) Gorochov, 1996 and Trellius (Zatrellius) Gorochov, 1999-were collected from Peninsular and East Malaysia and examined here. We report a new locality record for Borneloria moorei (Chopard, 1940) in Johor, Peninsular Malaysia, the first record of this genus in Malay Peninsula. From Sandakan, East Malaysia, we discovered a new species of Trellius (Zatrellius) and describe here: Trellius (Zatrellius) puntung sp. nov. We also recorded the previously unknown calling songs of Phaloria (Papuloria) tristis Gorochov, 2014 and Trellius (Zatrellius) puntung sp. nov. and describe them here.
Based on recent sampling of orthopterans in Maliau Basin and Meligan (including near Long Pasia and Sinipung Hill), Sabah, Borneo, we present here notes on some of the katydids from the subfamily Phaneropterinae. Two new species were discovered and are described: Tapiena dimidia sp. nov. from Maliau Basin and Tapiena munae sp. nov. from Sinipung Hill near Long Pasia and Meligan. New locality records for Elbenia (Elbenia) paradigitata Gorochov, 2023, Stictophaula multa Gorochov & Voltshenkova, 2009, Holochlora falcata Tan, Liu & Ingrisch, 2024 and possibly Psyrana (Psyrana) nr. imitativa Gorochov, 2024. Calling songs of four species of Phaneropterinae are described for the first time: Elbenia (Elbenia) paradigitata Gorochov, 2023, Elbenia (Elbenia) ?tenera Brunner von Wattenwyl, 1878, Rectimarginalis ensis (Haan, 1843) and Tapiena ?incisa Karny, 1923.