Main group 1

• Chinery, Michael, Insects of Britain & Northern Europe, 3. ed., London, Collins, 1993
• Douwes, Per, Insekter. En fälthandbok., Stenströms bokförlag, 2004
• McGavin, George; Lewington, Richard, Essential entomology: an order-by-order introduction, Oxford, Oxford University Press, 2001