one of the most delightful things about Spiders Grantaire is that the spider species listed* are not particularly cellary at all
they just make pretty webs that look like what people want spiderwebs to look like
*i mean okay i had to shuffle through a bunch of synonyms and questionable IDs but at any rate they are orb weavers** of the sort that make big old webs outside to catch flies in and are very unlikely to be hanging out in your wine cellar
** Epeira vulgaris is probably a synonym of Araneus sericatus which I guess may now be Larinioides sclopetarius, and I really doubt that Spiders Grantaire is farming the Australian and Asian Nephila plumipes but Nephila clavipes is found in the Americas.
***SO BASICALLY SPIDERS GRANTAIRE KNOWS A LOT ABOUT ART AND WHAT PEOPLE WANT TO SEE REGARDLESS OF ITS TRUTHFULNESS