Myiasis And House/Stable Flies.

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| By Andrew Blanshard
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Andrew Blanshard
Community Contributor
Quizzes Created: 9 | Total Attempts: 40,969
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  • 1/25 Questions

    Sarcophaga has a chess board appearance on its abdomen.

    • True
    • False
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About This Quiz

Explore the intriguing world of flies and myiasis with this quiz. Learn about the types of flies that cause obligatory myiasis, characteristics of Sarcophaga, and more. This quiz is designed to enhance your understanding of parasitic interactions and entomological identification.

Parasitology Quizzes & Trivia

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  • 2. 

    Musca domestica is characterised by:

    • A discal cell

    • Wings that fold over its body

    • Wing vein 4 bending up sharply to wing vein 3.

    • A hatchet cell

    Correct Answer
    A. Wing vein 4 bending up sharply to wing vein 3.
    Explanation
    Musca domestica is characterized by wing vein 4 bending up sharply to wing vein 3. This means that in the fly's wing structure, the fourth wing vein bends sharply upwards towards the third wing vein. This characteristic is unique to Musca domestica and helps in identifying and distinguishing it from other species. The presence of this specific wing vein arrangement is a defining feature of Musca domestica.

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  • 3. 

    Flies of the fannia genus have wing veins 4 and 3 that are almost parallel.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Flies of the fannia genus have wing veins 4 and 3 that are almost parallel. This statement is true because the fannia genus of flies does indeed have wing veins 4 and 3 that are almost parallel. This characteristic is a distinguishing feature of flies in this genus.

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  • 4. 

    House flys transmit enteric bacteria

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Including shigella, E.coli, Salmonella and Cholera.
    Viruses include polio
    They may transmit helminth eggs.

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  • 5. 

    Fannia scalaris is known as the latrine fly.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Fannia scalaris is indeed known as the latrine fly. This species of fly is commonly found in and around human habitats, particularly in areas with poor sanitation. They are attracted to and breed in decaying organic matter, including feces, which is why they are often found near latrines and sewage systems. Therefore, the statement that Fannia scalaris is known as the latrine fly is true.

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  • 6. 

    The larvae of flies of the Fannia genus have lateral processes.

    • True

    • False

    Correct Answer
    A. True
  • 7. 

    Tumbu fly likes to lay its eggs in urine soaked clothes.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Ironing clothes is a method of control.

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  • 8. 

    Musca domestica feeds by:

    • Vomiting up food from its crop to digest solid material

    • Feeding on plant sugars

    • Proboscis

    Correct Answer
    A. Vomiting up food from its crop to digest solid material
    Explanation
    The correct answer is "Vomiting up food from its crop to digest solid material." Musca domestica, also known as the housefly, feeds by regurgitating food from its crop, which is a specialized organ in its digestive system. This allows the fly to break down solid food into a liquid form that it can then ingest. This process is necessary because the housefly's mouthparts, known as the proboscis, are adapted for sucking up liquid food rather than chewing solid material. Feeding on plant sugars is not the primary method of nutrition for houseflies.

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  • 9. 

    Blinding trachoma is spread by Musca sorbens

    • True

    • False

    Correct Answer
    A. True
    Explanation
    It is caused by Chlamydia trachomata and is common in refugee camps.

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  • 10. 

    Myiasis is invasion of living tissue by the pupae of dipterous insects.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Invasion is by the larvae of dipterous insects.

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  • 11. 

    Cordylobia anthropophaga is also known as the Bot Fly.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    It is 'tumbu or mango' fly. Bot fly is dermatobia hominis.

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  • 12. 

    How many larval instars does musca domestica have?

    • 3

    • 4

    • 5

    • 2

    Correct Answer
    A. 3
    Explanation
    Musca domestica, commonly known as the housefly, has three larval instars. During its life cycle, the housefly undergoes complete metamorphosis, which includes four stages: egg, larva, pupa, and adult. The larval stage is divided into three instars, during which the larvae molt and grow in size. After the third instar, the larvae enter the pupal stage and eventually emerge as adult houseflies. Therefore, the correct answer is 3.

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  • 13. 

    Wing vein 4 bends up sharply to meet wing vein 3 in flies of the Fannia genus.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This occurs in Musca domestica. In fannia they are almost parallel.

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  • 14. 

    Which flies have prominent bristles on their dorsal thorax, are metallic and have larvae without spines.

    • Chrysomya and Cochliomya

    • Calliphoridae - Calliphora and Lucilia

    • Tumbu

    • Dermatobia

    Correct Answer
    A. Calliphoridae - Calliphora and Lucilia
    Explanation
    Calliphoridae is the family of flies that includes the genera Calliphora and Lucilia. These flies have prominent bristles on their dorsal thorax, giving them a metallic appearance. Additionally, their larvae do not have spines. Therefore, the correct answer is Calliphoridae - Calliphora and Lucilia.

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  • 15. 

    Only female stomoxys flies blood feed.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Both males and females blood feed.

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  • 16. 

    Which fly produces larvae which live in the host for 10+ weeks

    • Tumbu

    • Dermatobia hominis

    • Calliphora

    • Muscina stabulans

    Correct Answer
    A. Dermatobia hominis
    Explanation
    Dermatobia hominis is the correct answer because it is commonly known as the human botfly, which lays its eggs on the skin of animals or humans. The larvae then burrow into the host's skin and live there for a period of 10+ weeks, causing painful skin lesions. The other options, Tumbu, Calliphora, and Muscina stabulans, do not have a similar life cycle where their larvae live in the host for such a long duration.

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  • 17. 

    Which fly is metallic, is an obligate and has 3 stripes on its thorax.

    • Stomoxys calcitrans

    • Musca domestica

    • Lucilia

    • Cochliomya homonivorax

    Correct Answer
    A. Cochliomya homonivorax
    Explanation
    Cochliomya hominivorax, also known as the primary screwworm fly, is a metallic fly that is obligate and has 3 stripes on its thorax. This fly is known for its parasitic behavior, as it infests the open wounds of warm-blooded animals, including humans, and feeds on their tissue. The metallic coloration and distinct thorax stripes are characteristic features of this species.

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  • 18. 

    Cochliomya and chrysomya are called 'the flesh flies'.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    No, they are the flys of screw worms. Flesh flies are Wohlfahrtia and Sarcophaga.

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  • 19. 

    Musca sorbens is a vector of disease in which areas:

    • Africa, Asia, Pacific

    • Africa

    • South America and Africa

    • Africa and Europe

    Correct Answer
    A. Africa, Asia, Pacific
    Explanation
    Musca sorbens is a vector of disease in Africa, Asia, and the Pacific. This means that this particular species of fly is responsible for transmitting diseases in these regions. It is important to be aware of this vector in order to prevent and control the spread of diseases in these areas.

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  • 20. 

    Musca domestica defecates roughly every...

    • 20 minutes

    • Minute

    • 5 mins

    • 10 minutes

    Correct Answer
    A. 5 mins
    Explanation
    Musca domestica, commonly known as the housefly, is known to defecate approximately every 5 minutes. This frequent defecation is due to their rapid digestion process. Houseflies feed on a variety of organic matter, including feces, and their digestive system is designed to quickly process this food source. As a result, they produce waste frequently, making them potential carriers of diseases and contaminants. This behavior highlights the importance of proper hygiene and sanitation measures to prevent the spread of pathogens associated with houseflies.

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  • 21. 

    Which of these has a proboscis?

    • Musca domestica

    • Stomoxys

    • Calliphora

    • Musca sorbens

    Correct Answer
    A. Stomoxys
    Explanation
    Stomoxys has a proboscis. A proboscis is a long, tubular mouthpart that is used for feeding. It is commonly found in insects such as flies and mosquitoes. Stomoxys, also known as the stable fly, is a blood-sucking fly that feeds on the blood of mammals, including humans. Its proboscis allows it to pierce the skin and suck blood.

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  • 22. 

    Stomoxys calcitrans is an important disease vector.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Whilst it can transmit trypanosomiasis, it is unimportant in its transmission and it doesn't spread other bacteria or viruses as it doesn't go to faeces or festering wounds.

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  • 23. 

    Which methods can be used  used in the control of houseflies. Select all that apply.

    • Packing tips tight to kill larvae

    • Bacillus thurnigiensis as a biological insecticide.

    • Bed nets

    • Insecticide.

    Correct Answer(s)
    A. Packing tips tight to kill larvae
    A. Bacillus thurnigiensis as a biological insecticide.
    A. Insecticide.
    Explanation
    Packing tips tight to kill larvae is a method that can be used to control houseflies because it helps prevent the larvae from hatching and developing into adult flies. Bacillus thuringiensis is a biological insecticide that specifically targets and kills houseflies. Insecticide is a general term that includes various chemical substances used to kill or repel houseflies. Bed nets, on the other hand, are typically used to prevent mosquito bites and are not effective in controlling houseflies.

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  • 24. 

    Select all of the flys to cause an obligatory myiasis. 

    • Dermatobia hominis

    • Cordylobia anthropophaga

    • Wohlfahrtia

    • Chrysomya bezziana

    • Lucilia

    • Calliphora

    • Cochliomya homonivorax

    Correct Answer(s)
    A. Dermatobia hominis
    A. Cordylobia anthropophaga
    A. Chrysomya bezziana
    A. Cochliomya homonivorax
    Explanation
    The question asks for the flies that cause obligatory myiasis. Obligatory myiasis refers to a condition where the larvae of certain fly species must parasitize living tissue in order to complete their life cycle. Among the given options, Dermatobia hominis, Cordylobia anthropophaga, Chrysomya bezziana, and Cochliomya homonivorax are known to cause obligatory myiasis. These flies lay their eggs on or near living tissue, and the hatched larvae feed on the host's flesh. Therefore, selecting these flies would cause obligatory myiasis.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 05, 2013
    Quiz Created by
    Andrew Blanshard
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