And Sometimes Wings And Stings

Having made my way through the Inferno, I'm reading a fun historical romance, Jared's Runaway Woman. I did find an amusing blooper:

...and they'd started a bug collection.

"See?" Eddie, who was the same age as Sam, thrust a glass jar at Kinsey proudly displaying the four- and eight-legged critters climbing over a handful of straw stuffed inside.

"Oh my, that's quite a collection." Kinsey managed a smile and forced herself not to reel back.

I scratched my head when I read that. What kind of four-legged critters show up in a bug collection?

I wonder if our author has the same aversion to bugs that her heroine has. If they really give her the creeps, maybe she's never looked at insects long enough to see they have six legs?

From bees to flies to walking sticks,
Once they're grown, they all have six.