Gasterophilus spp Flashcards Preview

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Flashcards in Gasterophilus spp Deck (17):
1

common name

Bot fly

2

phylum

arthropoda

3

order

diptera

4

hosts

all horse species

5

identification of adult

large
robust
dark bands on wings

6

size of adult fly

18mm

7

identification of larvae

red with 2 rows of spines (intestinalis)
yellow with 1 row of spines (nasalis)

8

life cycle of G. intestinalis

eggs are deposited on hair of forelegs
first instar hatches and attached to tongue of horse when licked

9

life cycle of G. nasalis

eggs are deposited on hairs of intermandibular area
first instar hatches and crawls into mouth

10

life cycle of both once in the mouth

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

length of life cycle

up to 14 months

12

site of infection for G. intestinalis

eggs on forelimbs
3rd instar in non glandular stomach

13

pathogenesis

annoyance
inflammatory reaction

14

clinical signs

fly worry

15

diagnosis

gastroscopy

16

site of infection for G. nasallis

eggs on intermandibular space
3rd instar in pylorus and duodenum- small intestine

17

treamtment

manual removal of eggs
endoparasiticides