A quick and dirty rule of thumb. You can always tell a lyco at a glance from the eyes. That rearwards facing pair is a dead giveaway. Otherwise it really helps to have a lot of contact with a genus / species to tell without going the anatomy route.
In addition to the eyes, the spinnerets can help to distinguish between Lycosidae (wolf spiders) and Agelenidae (funnel weavers such as grass spiders). Long spinnerets (as yours has) are more consistent with Agelenopsis (grass spiders) or some other Agelenidae. Wolf spiders have less prominent spinnerets.