Drosophila melanogaster Life Cycle

Drosophila melanogaster (Common Fruit Fly or Vinegar Fly) is a species of Diptera, in the family Drosophilidae. It has yellow-brown body, with multifaceted brick red eyes, a black striped abdomen and a pair of translucent wings. It has a body size 2.5-3mm long.
Some features like rapid life cycle, low chromosome numbers (4 chromosomes), small genome size and giant salivary gland chromosome made Drosophila Melanogaster a major model organism in genetic studies.

Drosophila melanogaster (Fruit Fly) Life Cycle

The embryo(egg), which is about half a millimeter long, completes its development within 24 hours and hatches into worm-like first instar larva that is specialized for feeding and grows dramatically. The larva molts 24 and 48 hours after hatching to produce second and third instar larvae. A mature larva is about 7-8 mm long.
About three days after the second molt, the third instar larva complete its growth, crawl out of food and pupate. The pupa on the average is 2mm long. Inside the pupa case the larva undergo a four-day-long metamorphosis, after which the fly emerges from pupa. The newly emerged flies are ready to mate in 8-12 hours.

Drosophila melanogaster Life Cycle Pictures

Drosophila melanogaster (Fruit Fly) Male

Drosophila melanogaster (Fruit Fly) Female

Drosophila melanogaster (Fruit Fly) Mating

Drosophila melanogaster (Fruit Fly) Eggs

Drosophila melanogaster (Fruit Fly) Larvae

Drosophila melanogaster (Fruit Fly) Pupae

Newly Emerged Drosophila melanogaster

This post is dedicated to Mr. Naveed Khan (my nephew) a student of M.Sc Genetics, Department of Genetics, Hazara University, Manshera, Pakistan, who introduce me to Drosophila Melanogaster and its raising techniques.

Melon Fly-Bactrocera cucurbitae

This fruit fly called Melon Fly (Bactrocera cucurbitae) belong to family Tephritidae. It's a pest of economical importance and mainly affects plants such as cucumbers, pumpkins, rockmelons, squash, watermelons, but also chillies, green beans, mangoes, papayas, tomatoes, citrus and stone fruits. It's a body length of about 6-8 mm. In pictures below you see a Melon Fly damaging pumpkin.

Melon Fly (Bactrocera cucurbitae)