Front Half of a Caterpillar Small 320×142 Medium 640×284 Large 1024×455 Download Tiff Original 2400×1066 | (597.3 KB) Description Front half of a caterpillar. Labels: a, opening air tubes, a pair of which are shown in black at the cut end. Keywords "air tubes", caterpillar, kcaterpillars Galleries Insect Anatomy Source: Davison, Alvin Human Body and Health: An Intermediate Textbook of Essential Physiology, Applied Hygiene, and Practical Sanitation for Schools (New York: American Book Company, 1909) 95
