He said: “Their metabolism has increased as it’s got warmer.
“So generation times are sped up – and so it’s quite likely that mosquitos that people…more associate with late summer, they’ve managed to feed up as larvae quicker than normal because the temperature has been higher.”
He added that calm weather created the perfect way for them to find their victims.
“They first of all look for dark silhouettes… the next thing they hone in for is the carbon dioxide that you breathe out, and to a certain extent the certain volatile chemicals that you give off from your skin,” he said.
“In very still weather, effectively they can smell their way straight to you.”
Jones advised the main two defences against bites were using a chemical repellent, and creating a physical barrier, such as closing windows or using a mosquito net over your camp bed.