Recently, San-Blas et al. (2011; 2012) demonstrated that Fourier transform mid-infrared spectroscopy with attenuated total reflection (FTIR/ATR) can be used for identification of entomopathogenic nematodes and their symbiotic bacteria. Although this technique can make a distinction between different species of nematodes or symbiotic bacteria, its rapidity not known.
Read following papers for detail information on FTIR/ATR technique.
San-Blas, E., Cubillan, N., Guerra, M., Portillo, E. and Esteves, I. 2012. Characterization of Xenorhabdus and Photorhabdus bacteria by Fourier transform mid-infrared spectroscopy with attenuated total reflection (FT-IR/ATR). Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 93: 58-62.
San-Blas, E., Guerra, M., Portillo, E., Esteves, I., Cubillan, N. and Alvarado, Y. 2011. ATR/FTIR characterization of Steinernema glaseri and Heterorhabditis indica. Vibrational Spectroscopy 57: 220-228.