Entomology Flashcards
ovipar
lays eggs outside the female
vivpar
gives birth to larva
temporer
short term
stationer
permanent life long on host
parts of insets head
antennae
palpsy
difference between insects and arachnids
4 pairs of limbs in arachnids with no antennae or wings
stenoxen
host specific
morphology of lice
1-14mm
females are bigger
dorsoventrally flattened
9 abdominal segments
6 pairs of spiracles
No wings
No eyes
the chewing louse
head wider than thorax
chewing mouth parts ventrally
3-5 segmented antennae
no vector potential
chewing mouthparts ventrally
ambylvera
possible to hide antennae in groove
ischnocera
not possible to hide antennae
blood sucking louse latin
anoplura
blood sucking louse
head narrower than thorax
vectors for bacteria and viruses
piercing mouthpart
terminally 5 segmented antennae
single tarsal claw
whole epimorphosis takes place on the host
development of lice
epimorphosis with 3 nymphal stages
clinical signs of lice
scratching
intense grooming
hair/ fleece / feather loss
blood loss
weight loss
dermatitis
lameness
lice in horses
haematopinus asini
lice in cattle
linognathus vituli
haematoppinus eurysternus
solenopotes capillatus
lice in sheep
linognathus ovillus
l. pedalis
l. stenopsis
lice in pigs
haemodipsus ventricosus
lice in rat
polyplax spinulosa
lice in mouse
polyplas spinulosa
lice in man
pediculul humanus
pediculus capitis
phthirus pubis
amblycera
chewing or biting lice
ischnocera
chewing or biting lice
are fleas host specific
no they can suck blood from different species
wings of fleas
wingless
a 3rd pair of legs for jumping
are fleas vectors
yes for many viruses and bacteria
latin for fleas
siphonaptera
morphology of fleas
1-6mm laterally flattened, wingless
short club like antenna in a recess
piercing sucking mouth parts
eggs of fleas
take up 95% of infections
0.5mm
oviod smooth surface
combs of fleas
one ctenidium or 2 ctenidia
one on the head (genital comb , ventrally)
one on the thorax (pronotal comb, anteriorly)
abdominal segments of flea
10
development of flea
metamorphosis
3 larval forms
what do flea larva feed off of
the faeces of the adults and debris
difference between male and female flea
male sucks blood
fertilised female digs into skin becoming a pea sized module
what does 3rd larva of flea do
spins a coccoon which pupation occurs within
clinical signs of fleas
restlessness
scratching
intense grooming
anaemia
FAD
dogs flea hot spot
lumbosacral and gluteal region
definition of bugs
temporary, blood sucking, nocturnal ectoparasites of mammals, birds
latin for bugs
hemiptera
2 parasitic families of bugs
cimex
triatoma
is feeding temporary or permanent for parasitic bugs
temporary
morphology of bugs
dorsoventrally flattened
4 segmented antennae, slender
3 segmented beak and tarsus
compound eyes are small, antennae are slim
latin for bed bug
cimex lectularius
bed bug morphology
5-7mm reddish brown
scent gland
11 segmented abdomen
respiratory spiracles ventrally
blood sucking mouth parts lay ventrally
what time of day do bed bugs feed
nocturnal - feed at night
mating, egg laying, moults take place in dark cracks and crevices during the day
are bed bugs a vector for any disease
no
kissing bugs in latin
triatoma spp
what part of the world are bed bugs
worldwide
what part of the world are kissing bugs
south and central america
morphology of kissing bug
flattened with reduced forewing and membranaceous hind wing
are kissing bugs vectors for anything
trypanosomes
what happens during day and night of kissing bugs
both genders feed on blood during the night
mating, egg laying, moults take place in dark cracks and crevices during the day
development of kissing bugs
epimorphosis
how many nymphal stages in kissing bugs
5
diagnosis of kissing bugs
disageeable odour
specks of faeces
trace of blood sucking (bite)
lesser mealworm or darkling beetle
alphitobius diaperinus
where is the darkling beetle found
in feed, litter, manure, dead birds, nest of wild birds, reservoir of poultry pathogens
what can darkling beetles carry
bacteria
viruses
tapeworm
tunnelling activity of the darkling beetle
damages insulation materials of poultry houses - feeds on digestible material and chew holes in all kinds of material
morphology of darkling beetle
5mm
dark reddish brown to bright black
development of darkling beetle
holometamorphosis
number of larval instars in darkling beetle
7-11 larval instars
diptera order wings
single pair of membranous wings
pair of halteres
parasitic diptera
adults found externally
larva found in wounds, tissues and alimentary canal
can diptera be a vector
yes
2 suborders of diptera order
nematocera
brachycera
development of diptera
holometamorphosis
nematocera females
parasitic larva
mummy like pupae
nematocera families
anopheles, culex, aedes
simuliidae - simulium
psychodidae - phlebotomus
ceratopogonidae - culicoides
brachycera familits
orthorrhapha
tabanidae
cyclorrhapha
glossinidae
fannidae
muscidae
difference between orthorrhapha and cyclorrhapha
orthorrhapha - puparium is straight slit with females only drinking on blood
cyclorrhapha - puparium is circular split with both genders feed on blood larva
latin for mosquitoes
culicidae
morphology of mosquitoes
2-10mm long
slender body
long legs and wings
anatomy of mosquitoes of females
paired maxillae and mandibles
hypopharynx
labrum
pierce sucking mouthparts
fleshy labrum not entering the skin
pilose - hairy
anatomy of mosquitoes in males
reduced or absent maxillae, mandibles
long antenna
plumose - feathery in males
resting position of anopheles
characterisitically straight
acute angle with surfce