Welcome to the World of Fruit Fly Genetics. This is a *female* fruit fly Notice the tiger-striped abdomen and the simple tag-like tip on the abdomen. The tip at the end of the female abdomen is the excretory opening. Just proximal to this opening is the female genital opening. Female
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Fruit Fly Genetics
Notice the tiger-striped abdomen and the
simple tag-like tip on the abdomen.
Just proximal to this opening is the female genital opening.
This is a mature male fruit fly opening.
Mature males have a prominent black abdominal end.
Males also have tiny “sex combs” on their front pair of legs.
Notice the metallic sheen of the genitals.
One male and one female opening.
Find their distinguishing features.
Ventral view of a male and female opening.
Find their distinguishing features
Female laying opening.
virgin female as compared with the
Tiny fly eggs hatch into tiny worm-like opening.larvae. The larvae eat and grow in length
and girth. The maximum size
of the larval stage is called
the third instar.
This larval stage
becomes a pupa.
This is a third instar larva
prior to pupation
Larvae are mobile
With the onset of pupation the worm-like larva contracts and a
parchment-like pupa case hardens around the metamorphosing fly.
When the fly emerges from the
pupal case the wings are still
wet and folded.
When flies are newly hatched opening.
their wings are still damp
Is this a male
or a female?
This is a male.
Pigmentation has not developed.