1. Edward C. Dickinson, Flat 19, Marlborough Court, Southfields Road, Eastbourne, East Sussex BN21 1BT, UK, e-mail: .
2. Paul Smith, FAUNA Paraguay, Carmen de Lara Castro 422, Encarnación, Dpto. Itapúa, Paraguay, e-mail: .
3. Alan Sieradzki, 56 Coniston Avenue, Fleetwood, Lancashire FY7 7LE, UK, e-mail: .
4. Steven van der Mije, Naturalis Biodiversity Center, Darwinweg 2, 2333 CR, Leiden, the Netherlands, e-mail: .
5. Pepijn Kamminga, Naturalis Biodiversity Center, Darwinweg 2, 2333 CR, Leiden, the Netherlands, e-mail: