ACKNOWLEDGEMENTS
Charlotte Holgate (Erasmus intern) did laboratory
observations and measurements during 2008.
Mathieu Molet analysed the morphometric data.
We thank Sirisak Jodnok for help in Sakaerat,
Chakkrapath Dulyaphat for organizing fieldwork
in Songkla province, Patrick Landmann for the
photograph in Fig. 2, Nestor Fernandez for mite
identification, and Sasitorn Hasin for checking
specimens of Philidris. Mathieu Molet and Thibaud
Monnin gave useful comments on the manuscript,
and so did anonymous referees. Thanks are also
due to Tom Fayle for language editing.