Very interesting Starwatcher.  The MN DNR staff person I talked was familiar with them, said their sitings were not all that common, but didn't seem to excited by them.  Probably because their impacts (as your citation noted) are not well known and their bite doesn't harm humans. 

He said they go for years unnoticed, in some alternate form attached to the underside of vegetation.  Then, when conditions are right, they "bloom."


prouboy