111 Cephalic sclerites of final larval instar, Phrudus sp. Figures in upper left corner is whole mandible (upper) and close-up of apex of mandible (lower). Scale bar: 0.1 mm. Mandible and spiracle not same scale as main figure (spiracle is 27 µm in length) 112 Final larval instar, anterior of whole larva, Collyria catoptron, lateroventral view of head and thorax (stained with acid fuschin).