Blame it on the lice! Jennifer Garner faulted the little critters for not getting an invitation to George Clooney’s Venetian wedding.

The “Men Women & Children” star, 42, who is married to Clooney’s “Argo” collaborator Ben Affleck, stopped by “The Tonight Show” and explained her family’s absence from the lavish affair last weekend.

The mother of three recalled a story from “years ago” when the couple’s kids had a lice infestation and passed it along to the whole family. (“Stars, they’re just like us!” she quipped.)

Then, one day, after the elaborate hair oiling treatment that left them smelling like a mixture of “sulfur and rosemary,” Affleck suggested that they go to a party. The “not high-maintenance” actress agreed — doing a killer impression of her Boston-bred husband.

“So, I’m like, what’s the big deal? No one’s going to notice. … I was so used to it. We go, we show up and the first person I see is George Clooney, and I’d never met George Clooney. I was kind of like, ‘Ah, he’s so handsome! Like, oh, my God!’ So, I see him and I walk up to him and I’m chatting with him, just trying to act like it’s cool. I chose [to grease my hair]. And I can see that he smells me, you know? But he’s trying to be polite,” Garner said.