Myiasis Flies Flashcards
Screworms
Chrysoma
Cochliomyia
Blowflies
Lucilia
Calliphora
Non-metallic Flies
Cordylobia (Tumbu fly)
Auchmeromyia
Fleshflies
Sarcophaga
Wohlfahrtia
Chrysoma
Old World screwfly, various species Colour varies from bright metallic green to blue Thorax lacks prominent bristles No thoracic stripes Hairs on lower calypter
Cochliomyia
New World screwfly
Bluish metallic body
Three dark thoracic stripes
No lower calypter hairs
Lucilia
Greenbottle fly
Bright metallic green/blue colour
Prominent thoracic bristles
Lower calypter lacks hairs
Calliphora
Bluebottle fly
Dark blue metallic colour
Prominent thoracic bristles
Hairs on lower calypter
Cordylobia anthropophaga/Tumbu fly
Non-metallic, reddish brown or yellow in colour
Abdominal segments two and three are similar size
Auchmeromyia senegalensis
Congo floor-maggot-fly
Non-metallic, reddish-brown or yellow in colour
Abdominal segment two is twice as long as segment three
Sarcophaga
Grey/black fly with red eyes
Chequerboard pattern abdomen
Dull grey body with three black longitudinal stripes
Wohlfahrtia
Grey/black fly with red eyes
Black spot pattern on abdomen
Dull grey body with three black longitudinal stripes
Oestrus ovis
Sheep nasal bot fly
Broad head with vestigal mouthparts
Distinct ocellar triangle
Head/body covered in small black raised spots
Dermatobia hominis
Human bot fly
Dark bluish grey thorax, dark metallic blue abdomen
Large with broad head, vestigal mouthparts and distinct ocellar triangle
Musca domestica
Housefly
Colour is non-metallic, light to dark grey
Four broad stripes along the thorax
Chrysoma bezziana - Larvae
Classic maggot shape
Narrow anterior end and widens toward terminal segments
Bands of spines circling the abdominal segments
Pigmentation of the secondary tracheal trunks
Chrysoma/Cochliomyia - Posterior spiracle
Open peritreme, no button and three straight slits.
Cochliomyia homivorax - Larva
Similar to Chrysomya
Bands of spines circling the abdominal segments
Pigmentation of the primary tracheal trunks
Secondary tracheal trunks clear
Lucilia sericata - Larvae
Classic maggot shape
Cuticle bears small spicules/spines
Less pronounced than screw-worm larvae
No accessory oral sclerite between mouth hooks
Lucilia/Calliphora - Posterior spiracle
Complete peritreme, button and three straight slits
Calliphora vicina - Larvae
Classic maggot shape
Very similar to Lucilia
Cuticle bears small spicules/spines that are less pronounced than those of screw-worm larvae
Presence of accessory oral sclerite between the mouth-hooks.
Cordylobia anthropophaga - Larvae
Larva has an overall grub-like appearance - rounded.
Body covered with numerous conspicuous spines.
Cordylobia - Posterior spiracles
Posterior spiracle with indistinct peritreme and indistinct button
Three arculate spiracular slits
Cordylobia rodhaini/Lund’s Fly - Larvae
Overall grub-like appearance - rounded.
Larger than C. anthropophaga.
Body covered with numerous conspicuous spines.
