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DTM&H 2024 > Entomology > Flashcards

Entomology Flashcards

1
Q

 Metamorphosis

A

Series of changes which an insect passes in its growth from egg to adult

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2
Q

Insect head

A

Antennae and eyes, ocelli and three pairs of jaws (mandible, maxillae, labium)

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3
Q

Insect thorax

A

3 segments each bearing a pair of legs, the second and third may also bear a pair of wings

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4
Q

Insect abdomen

A

Usually has 11 segments

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5
Q

Arachnid cephalothorax

A

No antennae, chelicerae and mouth parts do not have jaw, four pairs of legs

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6
Q

Vector borne protozoa

A

Malaria, leishmania, trypanosomiasis

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7
Q

Vector borne viruses

A

YF, Dengue

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8
Q

Vevtor borne bacteria

A

Plague, typhus, relapsing fever

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9
Q

Mechanical transmission

A

Trachoma on Musca sorbens, Shigella

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10
Q

Malaria

A

Bite of Anopheles

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11
Q

Lymphatic filariasis

A

Bite of Culex, Anopheles, Aedes and Mansonia

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12
Q

Diarrhoea disease

A

Faeces of houseflies’

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13
Q

Trachoma

A

Musca sorbens - contact with eye secretions

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14
Q

Dengue

A

Bite of Aedes

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15
Q

Leishmania

A

Bite of Phlebotamine sandfly

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16
Q

Onchocerciasis

A

Bite of Simulium black fly

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17
Q

T brucei

A

Bite of Glossina tsetse fly

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18
Q

T cruzi

A

Bite of Triatoma, Rhodnius, triatomine bug

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19
Q

Rickettsia prowazeki

A

Bite of Pediculus humanus

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20
Q

Plague

A

Bite of Xenopsylla rat flea

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21
Q

Japanese encephalitis virus

A

Bite of Culex, Anopheles, Aedes and Mansonia

22
Q

Yellow fever

A

Bite of Aedes and Haemagogus

23
Q

Relapsing fever (Borrelia duttoni & recurrentis

A

Transovarial or bite of Ornthodoros and P humanus

24
Q

Loa loa

A

Bite Chrysops deer fly

25
Q

Scrub typhus O tsutsugamushi

A

Transovarial or bite of Leptotrombidium chigger mite

26
Q

Lyme Borrelia burgdorferi

A

Bite of Ixodes

27
Q

Tick borne encephalitis

A

Bite of Ixodes

28
Q

West Nile virus

A

Bite of Culex

29
Q

Zika virus

A

Bite of Aedes

30
Q

Anopheles Time of biting

A

Night, inside houses

31
Q

Aedes Time of biting

A

Day

32
Q

Tsetse and flies Control

A

Traps

33
Q

Mosquito larvae Control

A

Larval source management (LSM) - intermittent irrigation/flushing, chemical larvicides (Abate), treat with predatory copepods, reduce water (ie tyres and garbage, bacterial toxins (Bacillus), fish to eat larvae

34
Q

Culex larvae Control

A

Moving water, floating polystyrene beads in latrines

35
Q

Aedes Control

A

Wolbachia

36
Q

Anopheles Control

A

IRS indoor residual spray, LLIN long-lasting insecticidal nets

37
Q

Simulium Control

A

Aerial spraying of fast flowing water

38
Q

Mosquito Subfamily: Anophelinae

A

Anopheles

39
Q

Mosquito Subfamily: Culicinae

A

Aedes, Culex, Mansonia, Haemagoggus (+Toxorhynchites)

40
Q

Anopheles Eggs

A

Cigar shaped, air-filled lateral floats

41
Q

Anopheles Larva

A

Lays parallel to water, no siphon creates feeding current with mouthbrushes

42
Q

Mosquito Life cycle

A

Egg -> larva -> purpae -> adult

43
Q

Culicine Eggs

A

Lack float

44
Q

Aedes Eggs

A

Black, laid singly on moist surface, can withstand dessication for months

45
Q

Culex Eggs

A

Brown, thin rafts

46
Q

Mansonia Eggs

A

Stick to underside of aquatic vegetation

47
Q

Culicine Larvae

A

Siphon, hang at angle to surface

48
Q

Mosquito Blood meal

A

Only the female takes a blood meal - protein for egg development

49
Q

Mosquito Pupae

A

Comma shaped, active, non-feeding - cannot distinguish anopheline from culicinae

50
Q

Mosquito Proboscis

A

Sheath that surroundes mouthpart stylets - pair of maxillae, mandibles, one hypopharyx and the labrum (food canal)

51
Q

Anopheles Travel distance

A

2-4km

52
Q

Anopheles Monitoring population

A

Ladle for larvae/pupae, human landing catches (unethical), light traps then blood meal identification with anti-human Ab, dissection and age-grading by ovaries

DTM&H 2024 (29 decks)

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