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Table of Contents
ALL ABOUT BUTTERFLIES!
|What is a Butterfly?
|Printables and Activities
|Adult Butterfly Anatomy
Butterfly Anatomy Printout
|STRUCTURE IN BUTTERFLIES AND MOTHS
|Body structure and protection
|An exoskeleton made of chitin, a type of protein
|Respiration (breathing) and Circulation of oxygen
|Spiracles (9 pairs in butterflies) are pores open to the air and tracheae (air tubes) carry air through the body. Gas exchange occurs at the tiny ends of the tracheae. A very inefficient system which limits the size of butterflies. Spiracles are located on the abdomen and thorax.
|Circulation of oxygen
|Circulation of blood (for nourishment, not oxygen)
|A long, tubular heart (dorsal vessel) and hemocoel
|Proboscis, pharynx, foregut (the crop), midgut, hindgut, and anus
|Storage of food energy
|Excretion of wastes
|Malpighian tubules, long filaments which clean the blood and put the waste (urine) into the hindgut (rectum)
|Brain, ventral nerve cord, ganglia, peripheral nervous system (PNS) and visceral nerves.
|Sense of balance (especially while flying)
|Johnston's organ (located at the base of the antennae).
|Ovaries (female) and testes (male)
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