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Pathum Thani, Thailand

Jaitrong W.,Thailand Natural History Museum | Wiwatwitaya D.,Kasetsart University
Raffles Bulletin of Zoology | Year: 2013

The Aenictus pachycerus species group is widespread in the eastern Oriental, Indo-Australian, and Australasian regions. The members of the group are characterised by the well-developed frontal carina and parafrontal ridge, a weakly developed subpetiolar process and a smooth and shiny first gastral tergite (rarely superficially shagreened). Eleven worker-based species of the A. pachycerus group are recorded from Southeast Asia. Among them, two new species are here described: Aenictus kutai from Borneo (E. Kalimantan) and Aenictus sulawesiensis from Sulawesi. A key to Southeast Asian species of the species group is presented. The distribution and type locality for each species in Southeast Asia are given. © National University of Singapore.

Wiwatwitaya D.,Kasetsart University | Jaitrong W.,Thailand Natural History Museum | Jaitrong W.,Kagoshima University
Sociobiology | Year: 2011

The Aenktus hottai group is established to include two species (a named and a new species) occurring in Southeast Asia: Aenktus hottai Terayama et Yamane, 1989 and Aenktus yamanei Wiwatwitaya et Jaitrong, sp. nov. Both are probably restricted to Sundaland and inhabit lowland primary forests.

Jaitrong W.,Thailand Natural History Museum | Wiwatwitaya D.,Kasetsart University | Sakchoowong W.,Forest Entomology and Microbiology Group
Far Eastern Entomologist | Year: 2016

The Thai species of the ant genus Sphinctomyrmex Mayr, 1866 are revised. S. furcatus Emery, 1893 is firstly recorded from Thailand (Saraburi and Trang provinces). S. siamensis Jaitrong, sp. n. is described from Chiang Mai Province based on worker caste. Both Thai species were collected from soil, under leaf litter. A key to Asian species of Sphinctomyrmex is provided.

Trias-Blasi A.,Trinity College Dublin | Chayamarit K.,Forest Herbarium | Teerawatananon A.,Thailand Natural History Museum | Parnell J.A.N.,Trinity College Dublin
Phytotaxa | Year: 2014

A revision of Pterisanthes in Thailand is presented with three species: P. eriopoda, P. polita and P. cissioides. Pterisanthes cissioides Blume is newly recorded for Thailand. A description and illustration are provided. Full typification is presented for all species and synonyms and lectotypes are selected for five names. Distribution maps are presented. © 2014 Magnolia Press.

Jaitrong W.,Thailand Natural History Museum | Jaitrong W.,Kagoshima University | Yamane S.,Kagoshima University
ZooKeys | Year: 2012

The Southeast Asian species of the Aenictus javanus and Aenictus philippinensis groups are revised. Six species (four named and two new species) of the Aenictus javanus group occurring in this area are: A. doydeei Jaitrong & Yamane, 2011, A. duengkaei Jaitrong & Yamane, sp. n., A. javanus Emery, 1896, A. longinodus Jaitrong & Yamane, sp. n., A. nishimurai Terayama & Kubota, 1993, and A. piercei Wheeler & Chapman, 1930. Four species (three named and one new species) are recognized in the Aenictus philippinensis group: A. pangantihoni Zettel & Sorger, 2010, A. philippinensis Chapman, 1963, A. punctatus Jaitrong & Yamane, sp. n., and A. rabori Chapman, 1963. A. piercei is removed from the members of the A. piercei group sensu Jaitrong and Yamane (2011) and transferred to the A. javanus group. Lectotypes and paralectotypes are designated for A. piercei and A. rabori. Size variation occurs among individuals from single colonies of the A. javanus group, while the workers in the A. philippinensis group are clearly monomorphic. © W. Jaitrong, Sk. Yamane.

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