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Parasitology > Diptera- Two Winged Flies (Biting Gnats) > Flashcards

Diptera- Two Winged Flies (Biting Gnats) Flashcards

1
Q

Why do dipterans that feed on blood need the blood?

A

To lay eggs

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2
Q

T/F Male dipterans take blood meal

A

F

Females

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3
Q

Smallest blood feeding dipterans

A

Biting gnats

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4
Q

Why are dipterans so important?

A

Involved more often in transmission of human and animal pathogens than any group of arthropod.

Serve as IM host for protozoans

Serve as vectors for viruses

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5
Q

Myiasis

A

IMPORTANT

Larval stages of dipterans develop in organs and tissues of humans and animals.

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6
Q

T/F Black fly have long pair of wings

A

F

Short, knobbed wings called halteres that help with balance.

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7
Q

T/F Black flies have complex metamorphosis

A

T

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8
Q

Simulium spp

  • Host
  • Habitat
  • Flier
A
  • Blood feeders of humans, LA, and wild animals
  • Near flowing streams
  • STRONG flier
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9
Q

Black fly genus

A

Simulium

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10
Q

How to ID Simulium spp

A

Thorax has prominent bump “buffalo gnat”

Bite HURTS-serrated mandible

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11
Q

Fingerprint of black fly

A

Wings

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12
Q

WIWPHTH black fly

A

Produce toxins in saliva

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13
Q

Black fly zoonotic?

A

No

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14
Q

Old world sand flies

A

Phlebotomus spp

  • Africa
  • Middle East
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15
Q

New world sand flies

A

Lutzomyia spp

-Central/S America

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16
Q

Phlebotomus spp include

A

phlebotomine sand flies

17
Q

Phlebotomous spp

  • Host
  • Habitat
  • Flier
A
  • Warm blooded vertebrates
  • Nocturnal periodic parasites (hide in rodent burrows during day)
  • Weak flier
18
Q

ID sand fly

A

Hairy wings

19
Q

Importance of phleobotomine sand fly

A

IM host for protozoans
-Can cause cutaneous and visceral leishmaniasis

Vector for viral and bacterial disease

20
Q

Reservoir hosts for Leishmania spp

A

Rodents

21
Q

WIWPHTH phelobotomine Sand fly

A

Intermediate host for visceral and cutaneous leishmaniasis

22
Q

Culicoides spp

A

Biting midges

23
Q

Culicoides

  • Host
  • Habitat
A
  • Warm blooded animals

- Aquatic/water areas

24
Q

ID Culicoides spp

A

Small slender gnats
Buffalo humped thorax
Wings are mottled/spotted and fine hairs

25
Q

Culicoides importance

A

IM host for protozoan and filarial parasites

Vectors for bluetongue virus

26
Q

WIWPHTH Culicoides spp

A

Bites can cause inflammatory response

-Allergic dermatitis in horses “sweet itch” “summer dermatitis”

27
Q

Culicoides spp zoonotic

A

No

28
Q

3 “biting gnats” in diptera-two winged flies

A

Black fly
Phleobotomine sand fly
Midge/Sandfly

Parasitology (8 decks)

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