Bees in Europe are struggling. Some species are already disappearing at rates “consistent with a mass extinction”, due to the climate crisis and other human impacts.

But there is now another major threat to bees’ survival in Europe: killer hornets.

In early September 2019, an Asian hornet (Vespa velutina nigrithorax) was collected alive in Hamburg, Germany (the city has roughly the same latitude as Manchester in the UK).

The find represents the northernmost range of this invasive species so far in Europe and indicates it is spreading further north.

New research by a research group from Hamburg, which also serves to update the occurrence of the dangerous insect, has been published in the open access journal Evolutionary Systematics.

In Photos: Macro pictures showing rain-covered insects Show all 20 1 /20 In Photos: Macro pictures showing rain-covered insects In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453513.jpg A cluster fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453527.jpg A fly covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453526.jpg A Brachycera fly covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453525.jpg Two damselflies covered by dew drops on a wild flower. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453524.jpg A spider building a web among moss buds in the rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453520.jpg A dragonfly in the rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453519.jpg A Lightblue dragonfly covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453518.jpg A damselfly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453517.jpg A fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453516.jpg A blow fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453515.jpg A cluster fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453514.jpg A cluster fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453528.jpg A theraphosidae spider covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453534.jpg A hornet covered in rain on a wild flower. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453536.jpg A damselfly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453535.jpg Two damselflies covered in rain near the River Po in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453533.jpg A fly covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453532.jpg A Theraphosidae spider in the rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453530.jpg A fly covered in rain in a forest near the Po River, Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS In Photos: Macro pictures showing rain-covered insects its-a-small-wor-453529.jpg A Ladybird covered in rain drops in a forest near the Po river in Italy. See SWNS copy SWCArain: These mesmerizing macro photos show insects covered in rain droplets after a spell of rain in a beautiful Italian forest. Photographer Alberto Ghizzi Panizza, 44, was up at the crack of dawn to catch an early burst of rainfall near the stunning Po river in Italy. In the images, big rain droplets are scattered across the insects as they bathe in the morning light. Alberto Ghizzi Panizza/ SWNS

The Asian hornet is known to prey on many insects, including honeybees and other beneficiary species, has already invaded some parts of southern and central Europe, and is regarded as a potential threat to apiculture and even to ecosystems, scientists said.

Bees are vital pollinators for fruit, vegetables and non-domesticated plants. It is estimated that a third of all the food that we eat depends on pollination mainly by bees.

“Invasive species represent one of the big challenges in a globalised world as they more easily reach new habitats, may change local diversity patterns and often pose threats to native species and economy,” the authors said.

The Asian hornet specimen found in Europe was recorded in south-western France in 2005 and the species started to spread quickly. Over the next few years, it invaded large parts of France and regions of Spain, Portugal, Belgium, Italy, the Netherlands, southern parts of Great Britain and south-western areas in Germany.

The estimated invasion speed for France was estimated at around 78 km/year, but in reality, the spread might be occurring much faster due to human factors.

The research team said it is not yet clear if the collected Asian hornet belonged to an already settled population or if it’s the first record of a new invasion.

“Considering the fast invasion speed of the species and its relatively high climatic tolerance, it’s quite possible that it had reached Hamburg on natural routes and now reproduces there,” the scientists said.

Even though other models suggest the Hamburg area is not suitable for the species today, the new find might be a sign the Asian hornet has begun spreading at a speed above that previously known and even in climatically less favourable regions.

“The current find needs to be taken seriously, no matter if it is only a single specimen or a member of an established population”, said lead researcher Martin Husemann of the University of Hamburg.

Insects are in crisis around the world. More than 40 per cent of insect species are declining and a third are endangered.