2018 from Toddler- Entomology Flashcards
Summaries of the life cycles
Hemi-metamorph: mange/scabies and Mite
Epi-metamorph: bugs and lice
Holo-metamorph: Beetle, fleas, flies and mosquitos
The taxon name/order name of Bugs?
Heteroptera
Life cycle of the bugs is?
Epi
What is the feed for bugs?
Blood
The female bugs lay down:
Eggs
How many nymph stages does bug have?
5
Where is the mouth of bug?
Ventrally
Geographical occurence of Cimex lectularius?
Worldwide
Bed-bugs (Cimex lectularius) occur in the building of:
Poultry houses
The Bed-bugs may occur especially in the building of:
Egg-laying hens
What kind of pathogens are transmitted by the Bed-bugs?
None of them!
Is the Bed-bug a vector for anything if so what?
yes bed bugs (cimex lectularis) are vectors of Trypanosoma cruzi)
How many times does Bed-bug take blood meals during life cycle?
At one stage many times. They are obligate blood feeders. The adults and nymph stage usually visit their hosts during the night to take blood meals
Bed-bug blood sucking? (?)
5 or 6
They can survive for 6-7 months without blood meal!
Bites sleeping victims:
Bed bugs (cimex lectularis) Reduviidae (kissing bugs)
The species of Triatoma (Kissing bugs) occur in:
Latin and south America
NOT in Europe
How can Kissing bugs inoculate Trypanosoma cruzi (Chagas disease)?
With their faeces
How does the Blood sucking bug infect you?
You rub it into yourself
After the bug bites and ingests blood, they defecate on the person. The person can become infected if T. cruzi parasites in the bug faeces enter the body through mucous membranes or breaks in the skin.
Xeno-diagnosis
Biological vector of T. cruzi are Triatoma spp, Rhodnius spp and Panstrongylus spp.
Blood sucking bugs!
And examining their faeces
Beetle occurs in which building?
Poultry house: Darkling beetle-Alphitobius diaperinus)
NOT parasitic, just a pest of stored products
What is the scientific name for the Asian tiger mosquito?
Aedes albpictus
Feeding method of mosquitoes:
Only the females feed on blood meal- circadian rhythm! Both males (feathery, plumose antennae) and females (shortpilose natennae) feed on fruit juices, nectar and liquids
Feeding activity of mosquitoes:
Nocturnal, diurnal and crepuscular
Mosquiotos are vectors of
Biological or Mechanical vectors of
Protozoa – Plasmodium spp.
Viruses – e.g. West Nile virus, Chikungunya virus, Dengue fever, Myxomatosis
Nematodes – Dirofilaria immitis (dog heartworm), D. repens, lymphoid filariosis (elephantiasis)
Which fly is the greatest nuisance to horses?
Black flies
The females of Black-flies lay?
Eggs in batches (150-500 creamy-white eggs) on stone/vegetation next to running water or in.
Where do the Black-flies breed?
Fast-flowing water
What does the female gnat lay down?
Coccoon spinned by last larvae
Female Black-fly:
Only the females are blood feeders!
Diurnal
Exophilic
Exophagic
The antennae of the Black-flies are:
Short with many 9-12 segments
The Black-flies are the vectors of:
Onchocerca - river blindness
Black-flies mechanical and biological vectors of:
Protozoa – Leucocutozoon smithi, L. simondi
Viruses – Equine encephalitis, vesicular stomatitis, myxomatosis
Nematodes – Onchocerca spp. of horses and humans (river blindness – O. volvulus)
The family name of Biting midges is:
Ceratopagonidae family
Genus is Cullicoides
Where do Culicoides spp. develop?
Water vegetation!
Slow running streams, damp soil, manure heaps. Have specialised habitats
The Biting midges wings are:
Mottled, patterned
The feeding behaviour of the male Biting midges:
Only the females feed on the vertebrate blood
Which spends most of its time in larval form?
Biting midges- most of life spent in larval form
What works as a vector for Blue-tongue?
Culicoides
The biting midges are not the vectors of the pathogens of?
Leishmaniosis
What are the biting midges vectors of
Mechanical and Biological vectors of
Protozoa – Leucocytozoon spp., Haemoproteus spp. Nematodes – Onchocerca reticulate, O. ervicalis Viruses – Blue-tongue
Culicoides impunctatus causes:
Eq- allergic dermatitis (sweet itch of the horse)- ponies v sensitive
Human: summer dermatitis
What is the family of sandflies
Family: Psychodidae
Subfamily: Phlebotominae
Sand-flies in latin:
Phlebotomus (old world) and Lutzomyia (new world)
When are Phlebotominae spp. active?
Crepsuscular or nocturnal
Do male and female Sand-flies eat the same thing?
No. Only females feed with blood (blood-sucking mouthparts present). Both male and female sand- flies feed on natural sources of sugar; plant juices.
Sand-fly wings are:
Hairy and characteristically held at an angle above the abdomen
Sand-fly has what developmental part:
Egg– 4 larval stages– Pupa– adult
Sand-flies are vectors of:
Mechanical and Biological vectors
Protozoa – Leishmania spp. (30 sand-fly spp.) Viruses – Paptasi fever, vesicular stomatitis Nematodes – Onchocerca spp.
Horse fly genus
Tabanus: bromius and bovinus
Tsetse fly family name?
Glossinidae
Which take blood meals in family Tabanidae?
Only females
What is the genus name of deerflies?
Genus: Chrysops
Family: Tabanidae
Tsetse fly genus name
Glossina
When is the Tsetse fly active?
During the day- mostly in daylight! Diurnal
Female Tsetse fly lays:
L3- 3rd instar larval stage with polyneustic lobes
Where do Tsetse flies develop?
In ground
Fusca group – Forested habitats, rain, swamp, and man-grove forests
Palpalis group – Among vegetation around lakes and along rivers and streams Morsitans group – Dry savannah habitats, scrub vegetation
Tsetse fly feeding:
Male and females are blood feeders
Horse ked?
Hippobosca equina
Dog ked?
Hippobosca longipennis
Deer ked (looses its wings)
Lipoptena cervi
Sheep ked
Melophagus ovinus
Hippoboscidae feeding:
Both males and females are blood feeders.
Females are vivparous (=live birth, fully gown L3)
Hippoboscidae are:
Larviparous and viviparous
Keds are:
Larviparous and viviparous
Family of Louse fly (keds):
Hippoboscidae
Which fly species becomes wingless after a while?
Lipoptena cervi
Which form do Forest flies lay?
Egg
Melophagus ovinus feeding:
Male and female adults feed on sheep blood
Melophagus ovinus deposition:
L3 fully grown larvae are depositted on the fleece of sheep every 7-8 days
Musca flies that likes the faeces of Pigs?
Musca domestica
Common Names and their scientific names
House fly- musca domestica Lesser house fly- fannia cannicularis Stable fly- stomoxys calcitrans Face fly (facultative blood feeder)- musca autumnalis Horn fly- haemotobia irritans Sheep head fly- hydrotea irritans
What order does Fannia canicularis belong to?
Order: Diptera (flies)
Division: Cyclorrhapha
Which fly attack dairy Cattle on the legs?
Stomoxys calcitrans
Which fly bites the ears of Dogs?
Stomoxys calcitrans
Dog fly:
Stomoxys calcitrans. Also known as stable fly, barn fly, biting house fly, or power mower fly.
Which is the mechanical vector of Moraxella bovis (pink eye disease)?
Musca autumnalis (face fly)- this is also the vector of Thelasia and parafilaria spp
What kind of vector can cause eye-worm infection in Cattle?
Face flies (musca autumnalis)
Latin name of the most common fly species that infest grazing cattle?
Haemotobia irritans
Define myiasis:
Infection with a fly larva, usually occurring in tropical and sub-tropical areas. There are several ways for flies to transmit their larvae to people.
Myiasis sensu stricto = Traumatic or Wound myiasis
Caused by Calliphoridae and Sacrophagidae
Myiasis sensu lato
Caused by calliphoridae, Sacrophagidae and Oestridae
Family Calliphoridae blow flies common and scientific names
Sheep blowfly (facultative parasite flystrike)- Lucilla serricata
New-world screw worm fly: Cochliomyia hominivorax
Old-worm Screw worm fly: Chrysomya bezziana
Common green-bottle fly latin name:
Lucilla serricata (so it is the sheep blowfly?)
Sacrophagidae
Flesh flies- mainly Wohlfahrtia magnifica
Family Oestridae and the subfamilies
Hypodermatinae, Gasterophilinae.
Oestrinae,
Cuterebrinae
Warble or heel flies?
Subfamily: Hypodermatinae Genus: hypoderma -bovis -lineatum -actaeon -diana (in roe deer)
“Gad” caused by
Hypoderma bovis