House flies,

Myiasis,

Maggot therapy,

Forensic entomology

Prof. Abdelwahab A. Ibrahim

Entomology Department, Faculty of Science, Benha University

Class: Insecta Order: Diptera Suborder: Cyclorrhapha Family: Muscidae.

Musca domestica, lives in close association with people

all over the world.

The insects feed on human foodstuffs and wastes.

In warmer climates, the filth fly, M. sorbens is closely

related to the housefly and is important in the spread of

eye infections.

Blowflies (Calliphoridae) and other flies have been

associated with the transmission of enteric infections.

Scientific

classification

Prof. Abdelwahab Ibrahim

Prof. Abdelwahab Ibrahim

Morphology

Prof. Abdelwahab Ibrahim

Prof. Abdelwahab Ibrahim

Life cycle

Prof. Abdelwahab Ibrahim

Food

Breeding sites

Ecology

Behavior

Control

Diseases

Prof. Abdelwahab Ibrahim Prof. Abdelwahab Ibrahim

Prof. Abdelwahab Ibrahim

• Transmission of pathogens

Protozoa

Helminthes

Viruses

Bacteria

Fungi

• Fate and persistence of pathogens

Medical Importance

Myiasis

Prof. Abdelwahab Ibrahim

sites

Cutaneous

Nasal myiasis

Aural myiasis

Oral myiasis

Ophthalmic myiasis

Wound myiasis

Intestinal myiasis

Prof. Abdelwahab Ibrahim

Types

Obligatory

Facultative or

Accidental or

Pseudo myiasis Specific

Semi specific

Prof. Abdelwahab Ibrahim

Prof. Abdelwahab Ibrahim

Detention History Mode of action Advantages Limitations Flies used

Ancient Civilizations ◦ Maya, China, Australia

Army War Surgeons ◦ Napoleon, Civil War

William Baer ◦ John Hopkins

Ronald Sherman

Prof. Abdelwahab Ibrahim

Diversity of wound types

Remove necrotic flesh

Antimicrobial properties (MRSA)

Promote Wound Healing

Any open purulent sore ◦Diabetic ulcers ◦Bed sores ◦Burns ◦Abscesses ◦Basal cell carcinoma ◦Vein and artery diseases ◦Many more

Prof. Abdelwahab Ibrahim

Make Pattern of Wound

Place maggots inside

Cover with mesh

Place gauze bandage for drainage

Prof. Abdelwahab Ibrahim

Definition

Attraction to the remains

Stages of decomposition

Factors affecting on Succession

The application of Forensic entomology

Prof. Abdelwahab Ibrahim

Fresh Bloat Decay Post decay Dry (Skeletal)

Geographical region

Season

Sun exposure

Urban Vs. Rural scenarios

Bodies found inside buildings

Burial

Scavenging

Presence or absence of clothing

Finding Bodies or Body Parts

Estimate Time of Death and Postmortem Interval

Determine Cause of Death

Identify or Exclude Criminal Suspects

Determine If a Body Has Been Moved or Disturbed After Death

Prof. Abdelwahab Ibrahim