Gasterophilus are medium to large flies at 10-20mm long, and are thought to look similar to drone bumble bees.
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They have clear wings with brown patches, and produce creamy-white eggs, around 1-2mm in length
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Adults have non-functional mouthparts so cannot feed.
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Both ''G. haemorrhoidalis'' and ''G. nasalis'' have spikes on the ventral surface of the larval segments arranged in two rows. ''G. intestinalis'' have mouth parts that are not uniformlu curved dorsally and the body spikes present have blunt ended tips.
Gasterophilus are medium to large flies at 10-20mm long, and are thought to look similar to drone bumble bees.
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−
They have clear wings with brown patches, and produce creamy-white eggs, around 1-2mm in length
−
−
Adults have non-functional mouthparts so cannot feed.
−
−
Both ''G. haemorrhoidalis'' and ''G. nasalis'' have spikes on the ventral surface of the larval segments arranged in two rows. ''G. intestinalis'' have mouth parts that are not uniformlu curved dorsally and the body spikes present have blunt ended tips.