anatomy of a female butterfly

anus

Terminal orifice of the digestive tract enabling ejection of fecal matter.

heart

Muscular organ helping blood to circulate.

colon

Portion of the intestine in front of the rectum.

rectum

Terminal part of the intestine located between the colon and the anus.

dorsal blood vessel

Canal through which the blood circulates; it is located on the central line of the back of the insect.

salivary gland

Organ located in the buccal cavity; it secretes saliva and enables especially the digestion of food.

opening of copulatory bursa

Opening allowing copulation by the male butterfly and entry of sperm into the copulatory bursa.

oviduct

Canal through which the eggs are expelled from the ovaries.

seminal receptacle

Pouch where sperm is stored for fertilizing the eggs.

ovary

Female genital gland producing the eggs.

Malpighian tubules

Fine tubes appended to the intestine and helping in the excretion process.

intestine

Portion of the digestive tract extending from the crop to the anus.

esophagus

Canal in the anterior part of the digestive tract; it carries food to the crop.

copulatory bursa

Pouch in which sperm accumulates before entering the seminal receptacle.

crop

Large bulge at the back of the esophagus; it can dilate to receive food.