Introduction to Insects Flashcards
(20 cards)
What are the Different Orders of Insecta
- Diptera (flies)
- Phthiraptera (lice)
- Siphonaptera (fleas)
- Hemiptera (bed bugs)
Common Name for Diptera
Flies
Common Name for Phthiraptera
Lice
Common Name for Siphonaptera
Fleas
Common Name for Hemiptera
Bed Bugs
What can you use for identification of Insects?
Adults: 3 pairs of legs
Head, thorax, and abdomen
Antenna
What is the Life Cycles of Diptera
(Flies)= ELPA
Egg–> Larva–> Pupa–> Adult
What is the Life Cycles of Siphonaptera?
(Fleas)= ELPA
Egg–>Larva–>Pupa–> Adult
What is the Life Cycle of Phthiraptera?
(lice)= ENNNA
Egg–>Nymph–>Nymph–>Nymph–>Adult
Name the Characteristics of Diptera
(flies): Proboscis Antenna Compound Eye Ocelli Wing Veins Halteres
What are the importance of flies in veterinary parasitology
- Biological transmission of organisms (eg intermediate hosts of nematodes, protozoa, etc)
- Mechanical transmission of organisms
- Fly Strike: infiltration with larval stage
What do you use for Identification of Diptera (flies)
Mouth Parts
Size
Location on host
Larval Stages: color; spines
What problems do adult Diptera cause?
(flies)
Irritate animal
Feed on Blood
Transmit Disease
What is the common name for Stomoxys Calcitrans?
Stable Fly: doesn’t have spongy fabellum-probascus
What problems does a Diptera Larvae cause to a host?
(flies)
Larvae/instars
migrate in animal
feed on animal
True or False: Lice is Host Specific
True: Host Specific
Preferred host
Site of infestation
They are extremely host specific, meaning they require the host to complete the life cycle
How does the host get Lice?
Direct contact with another host or from bedding shortly after an infected host had been there
What is Anoplura?
Sucking Lice- suck blood, cause anemia
Move Slowly
Head narrower than thorax
What is Ischnocera (Mallophaga)
Chewing lice- feed on skin surface; pruritus; secondary infections
Move fast
Head wider than thorax
Trichodectes canis
Dog biting louse
