6.10 Flashcards
What is the most widely distributed insect of importance to mankind?
House Fly
Characteristics of a House Fly
- Gray in color
- Has 4 equally broad, dark longitudinal stripes
- Has non-biting, sponging mouth parts.
Disease importance of house flies
- Vomit food, then lap it up
- Good mechanical vector
- walk on organic filth.
- Can carry many disease organisms or cause myiasis
Blow Fly Characteristics
- blueish-green
- metallic
Disease importance of Blow Fly
Rarely a public health concern
also called surgical maggots
Sand Fly characteristics
- Bodies/wings are densely covered with hair
- Only females have piercing mouthparts for sucking blood
- bite at night
Disease importance of Sand Fly
- Bartonella (bacterial)
- Sand fly fever or pappataci fever (viral)
- Protozoal (Leishmaniasis).
TSE TSE Fly
- Fold their wings scissor-like
- both sexes are blood suckers
Disease importance of TSE TSE fly
Capable of transmitting trypanosomiasis
Black Fly Characteristics
Dark, stout, short broad wings
large size bite wound
Disease importance of Black Fly
River blindness (Onchocerciasis)
House or Deer Fly Characteristics
- Robust powerful wings
- 1 inch big
- Exceedingly painful bites
Disease importance of House or Deer Fly
- anthrax
- tularemia
- Trypanosomes
- Loa loa infections
Which insect does not cause any significant disease?
Eye gnats
House fly/Blow flies aboard ships may be best corrected by
- removing garbage onboard
- controlling any nearby breeding source ashore
Sand flies are effectively controlled by
elimination of potential breeding sites near an infested area
Black flies are effectively controlled by
Larvicides to the streams
Control of what pests is difficult and frequently ineffective?
Horse or Deer Fly
What may be somewhat effective under some conditions at controlling Horse or Deer Flies?
applications of insecticides
Aedes Aegypti Characteristics
- silver-white lines on the thorax
- White bands on the tarsal segments
How do Aedes Aegypti lay eggs
Laid singly on the side of containers at or above the waterline
What mosquito prefers the blood of man to any other animal?
Aedes Aegypti
Disease transmission of Aedes Aegypti
- Dengue fever
- Yellow fever
- Tularemia
- Filarial nematodes
Anopheles Species Characteristics
wings that are spotted
land with butt at 40 or 90*
Anopheles lay eggs
Laid singly on the water by lateral floats
Which mosquito is found mainly in bodies of fresh water?
Anopheles
Disease transmission of Anopheles
Malaria
What kind of region are the Culex Species normally found in?
Tropical/Subtropical
Culex like to breed in what kind of water?
Quiet sewage water
Disease transmission of Culex
Encephalomyelitis
Control methods for Mosquitoes
- Drain standing water
- Dispose of artificial containers
- Treat water with larvicides
Personal protective measures from mosquitoes
- Window screen
- Treated mosquito net
- Insect repellants
- Treated uniform
- Chemoprophylaxis