This intricate figure depicts larvae from several of the genera of tiger beetles which occur in the United States. The amount of work to compile these illustrations and achieve such detail is simply mind numbing to think about!
Hamilton, C. C. 1925. Studies on the morphology, taxonomy and ecology of the larvae of Holarctic tiger beetles (family Cicindelidae). Proceedings of the United States National Museum 65, Article 17: 1-87.