Chatzaki explained that the spiders were not unsafe for humans and would "have their party and soon die off". As per experts, spiders are fond of eating mosquitoes, and this has made them weave their nests in such a giant manner in the midst of mating.
With the growth of the gnat population, the spiders also thrive and multiply.
"These spiders are not unsafe for humans and will not cause any damage to the area's flora", she told Greek outlet Newsit.
2 dead after van is swept away in S. Carolina
It happened in Horry County on Highway 917 Tuesday night as the van was in still water on Pee Dee Island Road near the bridge. In a statement, the sheriff's office said the two deputies escaped from the cab and tried to get the women out of the back.
"These spiders are not unsafe for humans, and will not cause any damage", molecular biologist Maria Chatzaki told Greek news websites.
"When an animal finds abundant food, high temperatures and sufficient humidity, it has the ideal conditions to be able to make large populations", Chatzaki explains adding that this is not the phenomenon's first occurrence.
Chatzaki noted that it was a seasonal phenomenon that occurred mainly at the end of the summer and early autumn and arose from a "population explosion". Basically, hot weather equals more gnats, which equals more spiders, which equals more spider webs. "They mate, they reproduce and provide a whole new generation". I'm 10 minutes out of town and you can clearly see hundreds of little spiders floating along with their webs and my home is covered in them.
Mr Giannakopoulos added it was "a odd an unprecedented spectacle". In a bid to maintain balance, nature introduces a large number of spiders to keep the mosquito number in check. In 2015, a similar event was reported with Tetragnatha spiders in Dallas, Texas where webbing took over a "football-field" length area.