In contrast, Lasius claviger colonies are just as unseen over the year except for now. They're a social parasite of other Lasius species and produce 10 times as many alates as their hosts do to make sure successful colonies happen. In the afternoon hours colonies will erupt with tens of thousands of queens and males (usually favoring one gender heavily). Despite their numbers I've seen people walk right through thousands of them without even noticing. Sometimes I'll be in a field full of them, and people will walk up to me becuase I'm "doing something odd" and not even realize the ants even after they've started crawling up their legs, and landing on them.