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RUSVM Parasitology > Insects: Flies > Flashcards

Insects: Flies Flashcards

1
Q

Arthropods include the ________ and the _________.

A

Arthropods include the insects and the arachnids.

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2
Q

Most adult arthropods have a hard chitnous _______, a __________ body, and ________.

A

Most adult arthropods have a hard chitnous exoskeleton, a segmented body, and jointed limbs.

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3
Q

General characteristics of insects include:

  1. _______ pairs of legs
  2. Body divided into _______, _________ and _________
  3. Single pair of _________
A

General characteristics of insects include:

  1. Three pairs of legs
  2. Body divided into head, thorax and abdomen
  3. Single pair of antennae
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4
Q

Flies belong to the order __________.

A

Flies belong to the order Diptera.

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5
Q

Important identifying characteristics of the fly include the _________ of the fly, its ___________, and the location of the _____, ________ and/or _______ in/on a host.

A

Important identifying characteristics of the fly include the** size** of the fly, its mouthparts, and the location of the fly, larvae and/or eggs in/on a host.

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6
Q

Mouthparts may be adapted for_______ and______; _________ and ________; _________ only or they may be _________.

A

Mouthparts may be adapted for piercing and** sucking**; cutting and sponging; sponging only or they may be vestigial.

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7
Q

Fly larvae are _________, with ______ on each segment.

A

Fly larvae are segmented, with spines on each segment.

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8
Q

The anterior end of the fly larvae possesses a pair of ____________ and the blunt posterior end has a pair of ______________.

A

The anterior end of the fly larvae possesses a pair of oral hooks and the blunt posterior end has a pair of spiracular plates.

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9
Q

Maggots

A

Slender and wormlike and the spines on the third stage larvae are small

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10
Q

Bots

A

Stout and large with spines on the third stage larvae numerous and large.

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11
Q

Fly eggs are described as

A

creamy white, 1mm and banana shaped.

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12
Q

The life cycle of all flies consists of ______, _____, _________ and _________.

A

The life cycle of all flies consists of egg, larvae, pupa and adult.

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13
Q

Larvae are called ________ and there are typically _______ stages.

A

Larvae are called instars and there are typically ** 3 instar** stages.

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14
Q

Length of time required for completing the life cycle is _____________ dependent and typically _______ to _____________.

A

Length of time required for completing the life cycle is temperature dependent and typically 7 days to several months.

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15
Q

When life stages occur outside of the animal, the ________ stage is typically the overwintering stage.

A

When life stages occur outside of the animal, the pupa stage is typically the overwintering stage.

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16
Q

The site of infection of flies is the __________.

A

The site of infection of flies is the skin.

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17
Q

The parasitic phase in osme species is the ___________ stage developing in the skin, wool or internal organs.

A

The parasitic phase in osme species is the larval stage developing in the skin, wool or internal organs.

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18
Q

The common name of Musca autumnalis is _________.

A

The common name of Musca autumnalis is Face Fly.

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19
Q

The common name of Musca domestica is __________.

A

The common name of Musca domestica is Housefly.

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20
Q

Distribution of Musca spp is ________.

A

Distribution of Musca spp is worldwide.

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21
Q

Adult Musca spp characteristics.

A

5.5-7.5mm in length, light to dark grey in color. 4 distinct dark longitudinal shapes on the thorax and the grey abdomen has various light and dark markings.

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22
Q

Mouthparts of the Musca spp are adapted for _________.

A

Mouthparts of the Musca spp are adapted for sponging.

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23
Q

Site of infection of Musca autumnalis ______________.

A

Site of infection of Musca autumnalis around the eyes and muzzle where they gather on livestock.

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24
Q

Site of infection of Musca domestica__________.

A

Site of infection of Musca domestica** can be anywhere on the animal and buildings**.

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25
Q

Pathogenesis and lesions of Musca autumnalis:

A

Crawl on face, feeding on ocular and nasal discharges. Extremely annoying to pastered animals

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26
Q

Musca autumnalis are the mechanical vector of ______________ and biological vectors of _____________.

A

Musca autumnalis are the mechanical vector of infectious keratoconjunctivitis and biological vectors of spirurid nematodes.

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27
Q

Musca autumnalis are _______ to enter buildings

A

Musca autumnalis are reluctant to enter buildings

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28
Q

Musca domestica serve as biological vectors of _____________ and _____________ in horses.

A

Musca domestica serve as biological vectors of Draschia megastoma and Habronema spp. in horses.

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29
Q

Tretment of flies includes the use of:

A

A range of insecticides and products available to control flies

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30
Q

Common name of Stomoxys calcitrans is ______________.

A

Common name of Stomoxys calcitrans is Stable fly and biting housefly.

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31
Q

Distribution of Stomoxys calcitrans is ___________.

A

Distribution of Stomoxys calcitrans is worldwide.

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32
Q

Adult Stomoxys calcitrans resemble ___________, but have a ______________.

A

Adult Stomoxys calcitrans resemble Musca spp., but have a long, pointed proboscis.

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33
Q

Characteristics of adult Stomoxys calcitrans

A

Possess a shorter abdomen with 3 dark spots in the second and third abdominal segments. Proboscis is prominent.

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34
Q

Mouthparts of Stomoxys calcitrans are adapted for ____________.

A

Mouthparts of Stomoxys calcitrans are adapted for piercing and sucking.

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35
Q

Stomoxys calcitrans prefer to lay eggs in _____________.

A

Stomoxys calcitrans prefer to lay eggs in decaying vegetable matter.

36
Q

Stomoxys calcitrans feed on blood _________ times a day.

A

Stomoxys calcitrans feed on blood 1-2 times a day.

37
Q

Presence of Stomoxys calcitrans causes

A

increased head and ear movement, skin twitches, and tail swishes in animals.

38
Q

The bite of Stomoxys calcitrans is __________ and results in ______________.

A

The bite of Stomoxys calcitrans is painful and results in interrupted feeding patterns.

39
Q

Stomoxys calcitrans are mechanical vectors of ______________ and the intermediate host of _______________ in horses.

A

Stomoxys calcitrans are mechanical vectors of anthrax, trypanosomes, and equine infectious anemia and the intermediate host of Habronema muscae in horses.

40
Q

Common name for Haematobia irritans is ___________.

A

Common name for Haematobia irritans is Horn Fly.

41
Q

Distribution of Haematobia irritans is __________.

A

Distribution of Haematobia irritans is worldwide.

42
Q

Haematobia irritans is distinguished from Stomoxys calcitrans by

A

Haematobia irritans is distinguished from Stomoxys calcitrans by being half the size (4mm) and having shorter proboscis.

43
Q

The smallest blood sucking muscid is ____________.

A

The smallest blood sucking muscid is Haematobia irritans.

44
Q

Site of infection of Haematobia irritans is ____________.

A

Site of infection of Haematobia irritans is back, sides and abdomen of cattle..

45
Q

Large numbers of clustering Haematobia irritans cause ______________ that can cause ___________.

A

Large numbers of clustering Haematobia irritans cause intense irritation that can cause impaired milk production and weight gains.

46
Q

Haematobia irritans transmit __________.

A

Haematobia irritans transmit ** cattle helminths**.

47
Q

Treatment of Haematobia irritans is commonly _____________, due to flies spending much of thier time on their host.

A

Treatment of Haematobia irritans is commonly parasiticides, due to flies spending much of thier time on their host.

48
Q

Drug resistance can be seen in ___________.

A

Drug resistance can be seen in Haematobia irritans.

49
Q

The common name for Culicoides spp is ________________.

A

The common name for Culicoides spp is Biting Midges and No-See-Ums.

50
Q

Distribution of Culicoides spp is ____________.

A

Distribution of Culicoides spp is worldwide.

51
Q

Culicoides spp adults described as

A

1.5-5mm long with short piercing proboscis. Wings are mottled and held closed over the abdomen.

52
Q

Culicoides spp are associated with _______________ habitats.

A

Culicoides spp are associated with **aquatic or semi-aquatic **habitats.

53
Q

Culicoides spp have _______ instar stages and a __________ life cycle.

A

Culicoides spp have 4 instar stages and a longer life cycle.

54
Q

_____________ is a condition caused by Culicoides spp.

A

Summer dermatitis is a condition caused by Culicoides spp.

55
Q

Summer dermatitis presents with ___________________, due to the animal becoming allergic to bites.

A

Summer dermatitis presents with alopecia, excorations and thickening of skin, due to the animal becoming allergic to bites.

56
Q

Culicoides spp transmit ____________ and also serve as the intermediate host for _____________. They transmit ______________ in sheep and cattle.

A

Culicoides spp transmit African Horse Sickness (AHS) and also serve as the intermediate host for Onchocerca cervicalis. They transmit bluetongue virus in sheep and cattle.

57
Q

The common name for Tabanus spp is the _____________.

A

The common name for Tabanus spp is the Horse flies and gad flies.

58
Q

The common name for Chrysops spp is ____________.

A

The common name for Chrysops spp is Deer flies.

59
Q

Distribution of tabanus spp and Chrysops spp is ____________.

A

Distribution of tabanus spp and Chrysops spp is worldwide.

60
Q

Tabanus spp and Chrysops spp adults can be describe as

A

Medium to large up to 25mm long.

61
Q

Tabanus spp are _____________ than Chrysops spp.

A

Tabanus spp are larger than Chrysops spp.

62
Q

Chrysops spp adults can be described as

A

medium sized and have a dark band across their wings

63
Q

Mouthparts of Tabanus spp and Chrysops spp are adapted for ________________.

A

Mouthparts of Tabanus spp and Chrysops spp are adapted for slashing and sponging.

64
Q

The life cycle of Tabanus spp and Chrysops spp under ideal temperature conditions requires a minimum of ____________ and can take up to __________.

A

The life cycle of Tabanus spp and Chrysops spp under ideal temperature conditions requires a minimum of 4 monthsand can take up to 3 years.

65
Q

Tabanus spp and Chrysops spp are mechanical vectors of organisms responsible for _____________________.

A

Tabanus spp and Chrysops spp are mechanical vectors of organisms responsible for anthrax, pasteurellosis, trypanosomosis, anaplasmosis, equine infectious anemia and loasis.

66
Q

Most difficult blood sucking flies are ________________.

A

Most difficult blood sucking flies are Tabanus spp and Chrysops spp.

67
Q

Common name of Melophagus ovinus is _____________.

A

Common name of Melophagus ovinus is Sheep Ked and Sheep Tick.

68
Q

Distribution of Melophagus ovinus is ___________.

A

Distribution of Melophagus ovinus is worldwide.

69
Q

Characteristics of Melphagus ovinus include ________________.

A

Characteristics of Melphagus ovinus include ** 5-7mm in length, hairy and wingless with short head and broad, flattened, brownish thorax and abdomen.**

70
Q

Mouthparts of Melophagus ovinus are adapted for _______________.

A

Mouthparts of Melophagus ovinus are adapted for sucking.

71
Q

Melophagus ovinus pupae are described as _____________.

A

Melophagus ovinus pupae are described as ovoid, dark brown, 3-4mm and attached to wool.

72
Q

The entire life cycle of Melophagus ovinus takes place __________.

A

The entire life cycle of Melophagus ovinus takes place on the host.

73
Q

Heavy infestations of Melophagus ovinus are seen in __________________.

A

Heavy infestations of Melophagus ovinus are seen in autumn and winter.

74
Q

Life cycle of Melophagus ovinus

A
  1. Female gives birth to mature larvae
  2. Larvae adhere to the wool and pupate within 12 hours
75
Q

Producers mistake pupae for ___________.

A

Producers mistake pupae for engorged ticks.

76
Q

Heavy infections of Melophagus ovinus results in ______________.

A

Heavy infections of Melophagus ovinus results in loss of conditions and anemia.

77
Q

Melophagus ovinus transmits ___________.

A

Melophagus ovinus transmits Trypanosoma melophaglum.

78
Q

Melophagus ovinus is diagnosed by ___________.

A

Melophagus ovinus is diagnosed by inspection of the damaged, dirty wool and underlying skin reveals infestation.

79
Q

Melophagus ovinus can be treated by _____________.

A

Melophagus ovinus can be treated by shearing to remove pupae and adults and treatment of ewes with insecticides prior to lambing.

80
Q

Distribution of Culicidae is __________.

A

Distribution of Culicidae is worldwide.

81
Q

Culicidae can be described as _______________.

A

Culicidae can be described as having one pair of wings with long legs.

82
Q

Culicidae mothparts consist of ___________.

A

Culicidae mothparts consist of long proboscis.

83
Q

Female culicideae feed on _________.

A

Female culicideae feed on blood.

84
Q

Male Culicidae feed on ___________.

A

Male Culicidae feed on nectar, plant juices, and other liquids..

85
Q
A

RUSVM Parasitology (16 decks)

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