Rod Williams / Tephritid fly (Terellia tussilaginis) Brockley Cemetery, Lewisham, London, England, UK July 2016
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Nick Upton / Slow motion clip of a Marmalade hoverfly (Episyrphus balteatus) landing to feeding on pollen from a Greater knapweed flower (Centaurea scabiosa), near a foraging female Gall fly (Terellia colon), Wilt...
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Kim Taylor / Burdock gall Fly (Terellia tussilaginis) female. Surrey, England, UK, July,
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Kim Taylor / Knapweed gall fly (Terellia ceratocera) female. Surrey, England, July.
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Alex Hyde / Thistle Gall Fly (Terellia serratulae) feeding on a thistle. Nordtirol, Tirol, Austrian Alps, Austria. August.
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Alex Hyde / Thistle Gall Fly (Terellia serratulae) feeding on a thistle. Nordtirol, Tirol, Austrian Alps, Austria. August.
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Rod Williams / Gall fly (Terellia serratulae) on leaf, Ladywell Fields, Lewisham, UK, August.
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Rod Williams / Tephritid Flies (Terellia tussilaginis) mating on thistle, Lewisham, London, July
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Nick Upton / Burdock gall fly (Terellia tussilaginis) female feeding on an Oxeye daisy / Marguerite flower (Leucanthemum vulgare) chalk grassland meadow, Wiltshire, UK, August.
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Nick Upton / Gall fly / Greater fruit fly (Terellia colon) female on flowerbud of host plant, Greater knapweed (Centaurea scabiosa), chalk grassland, Wiltshire, UK, June.
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Nick Upton / Gall fly / Greater fruit fly (Terellia colon) male on flowerbud of host plant, Greater knapweed (Centaurea scabiosa), chalk grassland, Wiltshire, UK, June.
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Nick Upton / Gall fly / Greater fruit fly (Terellia colon) female extending and flexing long ovipositor after mating in preparation for laying eggs in flowerbud of host plant, Greater knapweed (Centaurea scabiosa)...
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Nick Upton / Female Gall fly (Terellia colon) with large ovipositor on a host plant Greater knapweed (Centaurea scabiosa) flower bud. Wiltshire, UK, June.
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Premaphotos / Large fruit fly (Trypeta / Terellia longicauda) female backing her abdomen into the centre of a woolly thistle bud in order to lay her eggs into it, UK
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Nick Upton / Gall fly / Greater fruit fly (Terellia longicauda) pair resting on the unopened flowerhead of a Woolly thistle (Cirsium eriophorum), the host plant for its larvae, in chalk grassland meadow, Wiltshire...
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Nick Upton / Gall fly / Greater fruit fly (Terellia longicauda) female resting on the tip of a Woolly thistle (Cirsium eriophorum) leaf, the host plant for its larvae, in chalk grassland meadow, Wiltshire, England...
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Nick Upton / Gall fly / Greater fruit fly (Terellia longicauda) pair, with male turning its abdomen towards the female and inflating a pouch to release courtship pheromones, on the leaf of a Woolly thistle (Cirsiu...
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Nick Upton / Gall fly / Greater fruit fly (Terellia longicauda) female on the unopened flowerhead of a Woolly thistle (Cirsium eriophorum), the host plant for its larvae, chalk grassland meadow, Wiltshire, UK, Jul...
