Chrysomya bezziana, the Old World Screw-worm fly, is distributed in sub- Saharan Africa, Middle East, Indian subcontinent, SE Asia and New. Chrysomya bezziana Villeneuve. (Figures and ). ETYMOLOGY:Chryso = gold + myia = fly; along with bezziana for Dr. Bezzi. Chrysomya bezziana (Diptera: Calliphoridae) infestation: case report of three dogs in Malaysia treated with spinosad/milbemycin. Hock Siew.

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Recent publications of C. Medical and Veterinary Entomology, 23 s1: Tegumentary and exposed-cavity myiases are relatively easy to diagnose because the source larvae can be observed directly. All warm-blooded terrestrial animals are susceptible to Chrysomya bezzianaincluding humans, birds, wildlife and livestock. The peritreme is wide with a break in its chrysmya border. The adult female will lay her eggs on superficial wounds in live animals preferring wounds that are several days old.

The maggots bzziana identified as larvae fhrysomya the Chrysomya bezziana fly. Observations of the third instar larva and puparium of Chrysomya bezziana Diptera: If the fly laid its eggs and the maggots hatched prior to the death of the corpse and the forensic entomologist does not take this into account, the entomologist could give an incorrect time of colonization.

Biochemical changes include initial neutrophilia, anaemia and decreased serum protein with progressive increase in serum globulins Humphrey et al. Calliphoridae in a sterile insect release trial in Papua New Guinea.

Chrysomya bezziana – WikiVet English

Medical and Veterinary Entomology, 24 3: Occurrence of the Old World screw-worm fly Chrysomya bezziana on livestock vessels and commercial aircraft. A Textbook for Physicians, Veterinarians and Zoologists. The results were promising in-vitro outside of the body in controlled environments, like a petri dish and in-vivo tested with living animals.


A year-old mentally retarded female patient belonging to low socioeconomic status presented to the dental outpatient department with tooth ache in the right maxillary region and generalized gum bleeding of 4 days duration. Treatment of screwworm infestation involves killing the larvae in the lesions, promoting healing, and preventing secondary reinfestation with larvae of the facultative myiasis-producing flies.

United States Department of Agriculture, Inan experiment proved that Chrjsomya had success rates similar to its New World relative Cochliomya hominivorax[9] which was successfully eradicated from North America in Oral myiasis due to Chrysomya bezziana has been reported in Hong Kong in in a paraplegic woman with ischemic heart disease on chrsomya tube feeding.

Chrysomya bezziana

Experimental Parasitology, 49 3: Ultimately, the case was handled by removal of the larvae using forceps until about 60 larvae were removed. Adult flies can also be controlled by the use of insecticides.

Retrieved from ” https: The lesion can extend into the body cavities causing peritonitis, sinusitis and pleuritis depending on the site of infestation.

All three stages are “maggot-like” in their appearance and exhibit cephalopharyngeal sclerites and posterior spiracles that are unique to the species Zumpt, Office Intl Des Epizooties, Chrysomya bezziana Old World screw-worm ; myiais of navel of new-born buffalo calf. Rajapaksa and Spradbery, The anterior spiracle has lobes, with 7 on occasion. These myiases present bezzisna great diversity of clinical profiles, depending on the affected sites.

Australia is free of screw-worm fly but with a bezzizna suitable for C. Chrysomya bezzianathe Old World screw-worm, is a primary myiasis-producing fly that attacks a wide range of warm-blooded animals throughout Africa, the Indian sub-continent, and Southeast Asia from Taiwan in the north to Papua New Guinea in the south. Entomology in Human and Animal Health7th ed. Support Chryeomya Support Center. Because of the voracious feeding activity and their appetite for host blood, Chrysomya bezziana is often described as being “vampiric” or “blood-hungry.


Villeneuve, the common Indian Calliphorine whose larvae cause cutaneous myiasis in man and animals. Strike on naturally occurring wounds, e. Urogenital myiasis caused by Chrysomya bezziana Diptera: The female flies are attracted to open wounds of man and domesticated and wild animals.

The larvae of Chrysomya bezziana burrow deep into the host’s healthy living tissue in a screw-like fashion feeding on living tissue that may be responsible for the separation of palatal flap and widespread necrosis observed in our case. Old World Screw-worm Fly: In the case presented, the myiasis was limited to localized destruction of the tissue and was not associated with hemorrhagic problems or bacterial infections. The social impact of livestock production losses is matched by the misery of human infestations caused by C.

Myiasis in man and animals in the Old World.: The female flies are attracted to the open wounds of man and domesticated animals. Geographical characteristics of Chrysomya bezziana based on external morphology study. Three live maggots were seen emerging from a sinus in the hard palate. Other known hosts include sheep, goats, buffalo, pigs, chickens, dogs and horses. Saudi Medical Journal, 3 4: Veterinary Record, 4: Author information Article notes Copyright and License information Disclaimer.

The potential geographical distribution of the Old World screw-worm fly, Chrysomya bezziana. There have been studies involving Chrysomya bezziana and the sterile insect technique.