Insect and arachnids quiz and image identification

What is the third stage of the life cycle of a fly called?-

• pupa

do all fly species have a pupa phase in their lifecycle?

• yes

What are two reasons why Musca domestica are of veterinary significance

• useful in understanding how to ameliorate disease

• spread bacteria due moving between their environment and host

Give two reasons why family Culicidae members are of veterinary significance

• transmission of diseases such as Dirofilaria immitis, Dipylidium caninum

Would we expect to find warble flies in the UK?

• NO

  • in scotland yes, not in england

What species of dipteran has a life cycle similar to that of a warble fly

• Bot fly

Match the adult stage to their larval stage

• A-E

• B-D

• C-F

Which larvae are adapted to an aquatic environment

• A, mosquito larvae

Which larva will take the longest to develop?

• C

Which adult has the least potential to act as a vector of infection, why?

• Bot fly, F - life cycle is long and only involves one host

1. Which mouthparts are are adapted for piercing and which for sponging?

2. which are characteristics of the suborder nematocera

3. which are characteristic of stable flies

4. what can you infer about the feeding habits of the housefly from its mouthparts?

1. C and B for piercing, A for sponging

2. C

3. B

4. liquid diet

Which family/genus is each likely to belong to?

1. Wohlfatira, flesh flies

2. Gasterophilus - B

3. Caliphora spp. Blue bottle

Which of these are chewing lice and which are sucking lice

• Sucking = B and C

• Chewing = D and A

What genus is D, it was found on cat

• Felicola

C was found on a pig, what genus is it?

• Hematopinus suis

A and B were from cattle, what genera are they?

• Linognathus/Bovicola

Name the stages of flea lifecycle

• Flea

• egg

• larva

• pupa

What do fleas feed on during stage 3 of their life cycle?

• organic detritus

What word do we use to describe the flea life cycle?

• homometabolous

what is the connection b/w flea infestation and tapeworm infection?

• dipylidium caninum - certain fly species act as a vector for it

Why is it essentail to treat the surrounding environment as well as pet when dealing with flea infestation?

• non-adult stages spend their life off the host

what is the most common flea found on both dogs and cats in the UK/

• ctenocephalides felis

which species of flea commonly affects bird species

• ceratophyllus gallinae

Which of these ectoparasites are fleas?

• A and D

Which are lice

• B

Which ectoparasite belongs to class insecta

C and f

Which on eof these ectoparasites is in immature larval stage?

• F

For cattle, what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. n/a

2. Dalaminia/Bovicola

3. Haematopinus sp. Linognathus sp.

4. Hypoderma bovis, bluetongue

For sheep what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. n/a

2. dalaminia sp

3. linognathus sp

4. melophagus ovis, myiasis

For cats:

what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. Ctenocephalides felis

2. felicola sp.

3. n/a

4. eye worm, dirofilaria repens, Leishmania

For dogs: what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. Ctenocephalidea canis/felis

2. trichodectes sp.

3. Linognathus, trichodectes canis

4. eye worm, dirofilaria immitis, leishmania

For birds what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. Ceratophyllus gallinae

2. lipeurus, Cuclotogoster, Menocanthus

3. n/a

4. avian pox virus

For rabbits what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. spillopsyllus cuniculi

2. n/a

3. haemoipsus ventricosus

4. myxomatosis, myiasis

For guinea pigs/mice what species of … affects them?

1. flea

2. chewing lice

3. sucking lice

4. flies/fly borne disease

1. ctenocephalides felis + spp.

2. gliricola gyropus

3. n/a

4. myiasis

What is this?

• Dermacentor reticulatus

• tick

What is this

• ixodes ricinus

• tick

What is this?

• Soft bodied tick, fowl tick

• argas persicus

What is this?

• Ixodes ricinus

What is this?

• tick larva

What is this?

• Ctenocephalides canis

What is this?

• Flea larva

What is this?

• mouse flea, leptopsylla segnis

What is this?

• Nosophsyllus fasciatus, northern rat flea

What is this?

• Pulex irritans

• human flea

What is this?

• felicola subrostratus

What is this?

• Haematopinus suis

What is likely wrong with this pig?

• Haematopinus suis infestation

What is this?

• psoroptes mite

What is this?

• Cheyletiella

What is this?

• red mite

What is this?

• Anopheles mosquito larvae

What is this?

• culex mosquito

• female

How do we determine between a sucking or biting louse?

• sucking - head is narrower than thorax

• biting louse - head is wider/same than thorax

How do we distinguish between Haematopinus and linognathus?

• Linognathus has a smaller first pair of legs

• Haematopinus has the same size pairs of legs

State 3 key identification features of haematopinus

• distincs ocular points behind antennae

• all legs similar size

• 3-6mm length

give 3 identification features of linognathus

• do not have eyes/ occular points

• second/3rd pair of legs are larger than the first, with stout claws at the ends

• up to 2.5mm length

3 identification features of Damalinia?

1. rounded heads, 3 segmented antenna

2. tarsi have a single claw

3. 1-2mm

3 identification features of trichodectes

• head broader than long

• antennae are 3 segemented and exposed

• single claw tarsi

• thick hairs on abdomen

• 1-2mm

3 identification features of felicola

• characteristic head shape - triangluar, pointed anteriorly

• legs are small and end in a single claw

• 1-1.5mm length

Identification points of Lipeurus

• slender and elongated in shape

• paired claws on tarsi

• five segmented antenna

• characteristic small angular projections of head just in front of the antenna

Identification features of menacanthus

• head almost triangluar

• antenna have 4 segments, mostly concealed beneath the head

• abdomen has a dense covering of ahir

• 3-3.5mm

3 identification features of Cuclotogaster

• five segmented antenna, fully exposed

• three thong bristles prject from each side of dorsal surface of head

• rounded body with large rounded head

• adults are approx 2.5mm long

What is this, what kind of mange does it cause?

• mite

• psoroptes 9ovis)

• psoroptic mange

What is this, what mange does it cause?

• mite

• chorioptes (equi)

• chorioptic mange

What is this, what mange does it cause?

• mite

• sarcoptes (var. canis)

• sarcoptic mange

What is this, what mange does it cause?

• Notodres cati

• notoedric mange

Which genus of mite is only parasitic during stage 3 of lifecycle?

• trombicula

1. Which are burroing mites

2. what test would we use for mite A

3. what would be most efficient for mite E

4. which mite A-G belongs to demodex

5. mite F found in the ear canal of a dog, what genus does it likely belong to?

1. A, (E)

2. superficial skin scrape/acetate tape strip

3. deep skin scrape

4. E

5. otodectes

where do hard bodied ticks lay their eggs?

• in the animal/on the host

how does the life cycle of a soft bodied tick differ from a hard boddied tick?

• hard bodied lay eggs then die

• soft boddies lay eggs, don’t die - also don’t lay them on the host

What structures have been identified?

1. light green/yellow - palps

2. pink - hypostome

3. red - spiracle

4. blue - anal groove

5. dark green - anus

Which are soft vs hard ticks?

Soft: B, D, E

Hard: A, C, F

Which are members of the genus Ixodes?

• B and C - no festoons, clear anal groove

what are the main clinical signs of babesiosis?

• fever

• pale mucous membranes and gums

• coloured uring

• enlarged spleen

  • swollen lymph nodeswh

what are the main symptoms of Looping Ill?

• muscular tremors

• nervous nibbling

• ataxia - especially hindlimbs

• weakness

  • collapsewhat

what is the common name for borreliosis?

• lyme disease

For cattle, what species of burrowing mite, surface mite and tick borne diseases affect them?

1. Sarcoptes sp

2. Chorioptes sp

3. babesiosis

For sheep what species of burrowing mite, surface mite and tick borne diseases affect them?

1. Sarcoptes scabiei

2. Psoroptes

3. infectious ovine encephalitis, pyaemia, ixodes ricinus, haemaphysalis ponctata, ixodes ricinus

For cats, what species of burrowing mite, surface mite and tick borne diseases affect them?

1. notoedres catis

2. otodectes cyanotis, cheyeletiella

3. ixodes ricinus

For dogs what species of burrowing mite, surface mite and tick borne diseases affect them?

1. demodex canis

2. otodectes cyanotis, cheyeletiella

   1. ixodes ricinus

for birds, what species of burrowing mite, surface mite and tick borne diseases affect them?

1. knemidocoptes

2. dernanyssus

3. argas persicus - fowl itch

for rabbits what species of burrowing mite, surface mite and tick borne diseases affect them?

1. notoedres cati

2. psoroptes

3. haeaphysalis ponctata, ixodes ricnus

for guinea pigs/mice what species of burrowing mite, surface mite and tick borne diseases affect them?

1. trixacarius caviae

2. chirodiscoides

3. ixodes rinicus, ixodes scapularis