The breathing holes on the sides of a caterpillar or butterfly.

lateral, oval to round openings of respiratory system found on the first thoracic and first 8 abdominal segments.

The openings on an insect's sides where air enters the respiratory system.

Holes along the side of the body, one each side of each segment, allowing air to flow and diffuse into the body.

Breathing holes located along the side of the body.

Breathing pores or openings in the sides of the insect body through which air enters the body.

Breathing holes positioned along the abdomen

These are small openings found in the thorax of both the larvae and the adult species of insects. These openings allow the air to enter into the respiratory system of the body.

Series of small apertures located along each side of the thorax and abdomen used by invertebrates for respiration.

Holes along the side of an insect's body through which it breathes.

spEER-ihk-kulls) Breathing holes. An aperature or opening, or group threreof, used for the purpose of gaseous exchange for vital respiratory purposes. These spiracles are often found in rows along the sides of insects' bodies. Weird, huh