Gasterophilus spp Flashcards
1
Q
common name
A
Bot fly
2
Q
phylum
A
arthropoda
3
Q
order
A
diptera
4
Q
hosts
A
all horse species
5
Q
identification of adult
A
large
robust
dark bands on wings
6
Q
size of adult fly
A
18mm
7
Q
identification of larvae
A
red with 2 rows of spines (intestinalis)
yellow with 1 row of spines (nasalis)
8
Q
life cycle of G. intestinalis
A
eggs are deposited on hair of forelegs
first instar hatches and attached to tongue of horse when licked
9
Q
life cycle of G. nasalis
A
eggs are deposited on hairs of intermandibular area
first instar hatches and crawls into mouth
10
Q
life cycle of both once in the mouth
A
in oral cavity become second instars second instars are swallowed develop third instars live up to 12 months in stomach pass in feces and pupate in soil adult bot fly emerges
11
Q
length of life cycle
A
up to 14 months
12
Q
site of infection for G. intestinalis
A
eggs on forelimbs
3rd instar in non glandular stomach
13
Q
pathogenesis
A
annoyance
inflammatory reaction
14
Q
clinical signs
A
fly worry
15
Q
diagnosis
A
gastroscopy
