Revealing mistake: When Becky gets out of the shower naked, her father walks in on her and you can clearly see her wearing pants, reflected in the mirror, to keep her modesty. (01:10:05)
Revealing mistake: In the scene where Dr. Ross Jennings is trapped in the corner of the cellar, you can see that the tarantula which starts climbing up his leg has a huge black stick stuck to the back of its body, pushing it along. (01:36:05)
Continuity mistake: When Irv and Blaire are snuggled up on the couch, watching Wheel of Fortune, watch the big bowl of buttery popcorn they have. In the first shot it is full to the brim. In the next shot it's half full. (01:18:15)
Answer: It definitely wasn't one of the offspring, as you can see when it jumped out at him that it was a very large spider, likely the general since they mentioned the queen would be guarding the egg sac in the wine cellar to defend it from other spiders.
Phaneron ★