Pest exterminators are being kept busy with an influx of white-tailed spiders in Auckland.
The summer months bring increased numbers of the spider, whose bite can cause a nasty rash and swelling.
And according to ACC figures, around 300 people a year seek medical help for white-tail spider bites, at a cost of $65,000 to $80,000.
Bug King owner Mark McDonald was getting 10 calls a week about white-tailed spider infestations, mainly from West Auckland.
Pest experts say white-tailed spiders usually live outside, in roof spaces or beneath floors, but will move inside if their habitat has been disturbed, through gardening, bad weather or if there is a lack of food.