Ming Kai Tan

A new species from the genus Gorochovitettix (Tetrigidae: Metrodorinae) from Thailand

A new species of pygmy grasshopper from the genus Gorochovitettix is described: Gorochovitettix khaosung sp. n. from Sakaerat Biosphere Reserve, Thailand. This represents the second species from the genus and the first record of the genus outside Vietnam.

Short taxonomic review of little-known Phaneropterinae (Orthoptera: Tettigoniidae) from Malay Peninsula.

The taxonomy of three genera of little-known Phaneropterinae from Malay Peninsula (Singapore and Peninsular Malaysia) is reviewed: Cesasundana Koçak & Kemal, 2009, Elbenia Stål, 1876 and Macedna Karsch, 1891. One new species each from the genera Cesasundana and Elbenia are described from Singapore and Peninsular Malaysia respectively: Cesasundana lorniensis sp. n. and Elbenia fraser sp. n. Keys to species of Cesasundana and Elbenia are also included. The taxonomic position of monotypic genus Macedna is validated, male is redescribed and the female is described for the first time.

A new species of Cardiodactylus (Orthoptera: Grylloidea: Eneopterinae) from Singapore

Cardiodactylus is a speciose cricket genus belonging to the subfamily Eneopterinae. One new species of Cardiodactylus from Singapore is described: Cardiodactylus admirabilis Tan & Robillard n. sp. Acoustic analysis is also performed on the male calling song. A key to species of Eneopterinae from Singapore is provided.

A contribution to the knowledge of Orthoptera diversity from Peninsular Malaysia: Bukit Larut, Perak

Bukit Larut is a hill station at the southern tip of the Bintang Range, Perak of Peninsular Malaysia. While the biodiversity of Bukit Larut has been previously documented, its entomofauna, including the Orthoptera, remains relatively unknown. A faunistic survey was conducted in 2015 as part of the continuous exploration of the highlands in Malay Peninsula. An annotated species list of 71 (24 Caelifera and 47 Ensifera) species of Orthoptera from ten families (five from each order) is presented here. While the coverage of lineages in the orthopteran phylogeny is well-represented, the diversity in Bukit Larut is dominated by the three main families: Acrididae, Gryllidae and Tettigoniidae. Eight new locality records for Bukit Larut and/or Peninsular Malaysia and potential new species awaiting description highlight that the orthopteran diversity in Bukit Larut is not exhaustive.

A new species of Tapiena (Orthoptera: Tettigonioidea: Phaneropterinae) from Brunei Darussalam (Borneo, Southeast Asia)

There are now more than 28,000 described orthopterans globally (Cigliano et al., 2018) and this figure is likely to increase in the future. The same is true for Southeast Asia, where we are still at a stage of discovering species new to science, and this is partly an artefact of incomplete sampling (Tan et al., 2017a). In one of the most popular biodiversity hotspots, i.e., Borneo, is the Kuala Belalong Field Studies Centre. It is located in the primary lowland and ridge dipterocarp forests of the Ulu Temburong National Park, Brunei Darussalam. Recent collection of orthopterans in the area led to the discovery of several new species of katydids (Tan et al., 2017b; Tan Wahab, 2017a) and crickets (Tan et al., 2017c; Tan Wahab, 2017b). Here, we describe another new species of katydid, from the genus Tapiena Bolívar, 1906. Tapiena currently consists of 26 species (Tan et al., 2015) and is distributed around Asia and even Africa. In Borneo, only one species is known: Tapiena incisa Karny, 1923 from Sarawak (see Karny, 1923). The new species Tapiena paraincisa sp. nov. represents the second species described from Borneo.

New taxa and notes on crickets of the subfamily Landrevinae (Orthoptera: Gryllidae) from Brunei Darussalam, Borneo

New taxa from the subfamily Landrevinae (Orthoptera: Gryllidae) are expected despite recent work on its taxonomy. Here, two more new species from Brunei Darussalam, Borneo are described: Duolandrevus (Eulandrevus) kawataredoki sp. nov. and Endodrelanva nympha sp. nov. The male calling song of D. (E.) kawataredoki sp. nov. is also described. We report the occurrence of a Duolandrevus (Bejorama) from Brunei close to (nr.) luzonensis Otte, 1988. We also document from Brunei a case of parasitic wasp from the genus Liris (Hymenoptera: Crabronidae: Larrini) hunting a Landrevinae.

Integrative taxonomy reveals two sympatric species of the genus Eucriotettix Hebard, 1930 (Orthoptera: Tetrigidae)

Limno-terrestrial pygmy grasshoppers are mostly recognised using morphology but characters used are not always clear-cut for species identification. From a faunistic survey in Singapore, Eucriotettix were collected and two new species are identified and described here: E. guentheri sp. nov. and E. simulans sp. nov. This was done by iteratively incorporating morphological, molecular, morphometric, and ecological data. Mitochondrial COI trees, COI cluster analysis, microhabitat preference, and morphometric analyses provide strong enough indirect evidence that the specimens comprise a pair of species. A key to species of Eucriotettix from Singapore is also provided.

New taxa and notes of katydids from the tribe Meconematini (Orthoptera: Meconematinae) from Brunei Darussalam (Part 2)

Based on extended surveys in Kuala Belalong Field Studies Centre, Brunei Darussalam, one new species of Kuzicus is described here: Kuzicus mirabilis sp. nov. This represents the first species described from Borneo for this Asiatic genus. The female of Pulchroteratura huiqing Tan et al., 2017 is described here, first time for the genus. The females of Leptoteratura (Rhinoteratura) chela Tan et al., 2017 and Pseudoteratura (Pseudoteratura) kenuan Tan et al., 2017 are also described for the first time.

Taxonomic review of Tapiena (Orthoptera: Phaneropteridae: Phaneropterinae), with key to species and new species from Thailand.

The genus Tapiena (Orthoptera: Phaneropteridae: Phaneropterinae), consisting of species from around Asia and Africa, is reviewed. Henningian species concept was applied and morphology was used to estimate species boundaries. From Sakaerat Environmental Research Station, Thailand, two new species are described: Tapiena sakaerat Tan, Liu, Artchawakom sp. n. and Tapiena denticulata Tan, Liu, Artchawakom sp. n. This represents the first record of the genus Tapiena in Thailand. A key to the species of Tapiena (for males only) is also provided.

A new species of Velarifictorus ( Pseudocoiblemmus ) from Thailand (Gryllidae; Gryllinae; Modicogryllini) with key to species

One new species of Velarifictorus (Pseudocoiblemmus) is described from Thailand: Velarifictorus (Pseudocoiblemmus) bilobus sp. n. A key to all known species of Velarifictorus (Pseudocoiblemmus) is provided.