Ausden M, Drake M. 2006. Invertebrates. In: Sutherland WJ, (ed). Ecological census techniques. 2nd ed. Cambridge: Cambridge University Press; p. 214-249.
Interesting sampling methods are described in this chapter (i.e. Terrestrial emergence traps, digging and taking soil cores, litter samples, desiccation funnels,...) along with their advantages, disadvantages, and biases. Do not hesitate to leave me a message If you do not have access to this book. Good luck.