Page 54 - AG 7-2011 Revised 2016
P. 54

STABLE FLY                                                                       House Fly

Photo Courtesy of UNIVAR                                                                         Photo Courtesy of UNIVAR

                    Maggots                                  HOUSE FLY

                                                       EGGS                            LARVA

                             Photo Courtesy of UNIVAR  Photo Courtesy of UNIVAR

Larva Only                                                                         3        Maggots
1.Antenna-none	 	 	 6.Thorax- cylindrical shape
2.Eyes- none	 	 	 	 7.Petiole- none                                                                                  8
3.Head- no head capsule 2 hooks for mouth	 8.Abdomen- posterior has 2 spiracles
4.Legs- none	 	 	 	 9.Color- various colors                                                      Drawing by Andrew Schaible
5.Wings- adult only	 	 	 10.Other- most fly larvae are cylindrical 	
	 	 	 	 	 shape without legs or a true head 	
	 	 	 	 	 capsule
Life Cycle
The maggot is just the larval stage of the fly.  One fly can lay 75-150 eggs at a
time, and the maggots emerge less than a day later, as fast as 8 hours in warm
weather.  They remain in the larval stage anywhere from 3 days to eight weeks
depending upon the temperature.  Maggots undergo three instars during that
period.

Maggots are simply the larval stage of flies--worm-like creatures without heads or appendages.  They
eventually form a shell to pupate, and then emerge as the adult fly. They are a creamy white color,
and just as soon as they hatch they seek to begin feeding.  Maggots will feed on just about anything
decaying--meat, feces, vegetables and fruit, and in large numbers on garbage. They can even infest
wounds. Sanitation is the best control.

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