It is found in dry and arid regions across the southern United States and into northwestern Mexico.

It constructs the characteristic funnel-shaped webs in crevices where the funnel will fit, where they wait in the tube for prey which they can run after using their long legs.

A. aperta are mainly monogamous, and the male performs an elaborate courtship ritual that involves swaying his abdomen and releasing pheromones.

Desert grass spiders inject venom into their prey which results in rapid paralysis.

Their legs are relatively long, which allows them to run quickly in order to catch any prey that has fallen onto their non-sticky web.

[3] As suggested by their name, desert grass spiders are found in dry and arid climates, such as those in the southwestern United States, from southern California to Texas, to northwestern Mexico.

It is likely that the spiders move to more protected areas of their habitat during periods of extreme temperatures to compensate for the lack of cold hardening.

In case of any damage to its web, these spiders can also escape out of the bottom of the funnel through an opening in order to get to safety.

Due to their unique shape and the speed at which spiders can catch their prey, their webs are made of non-sticky silk.

Some common locations for them to build their webs are in crevices where the funnel would fit, such as in-between rocks or on top of a bush.

Spiders that find the best sites for their webs grow to be the largest in size and are considered to have the highest relative fitness.

The regular distribution pattern of their webs and observations of agonistic behavior are both characteristic of territoriality.

Insects that are typically found in grass are common prey, such as grasshoppers and aphids, as well as other spiders.

Desert grass spiders are most active at night in their search for food, but may be seen emerging from their funnel during the daytime if prey steps on the flat part of their webs.

Some males mate with the females while they are in this unconscious state, but most wait and continue their courtship ritual during this time.

One of these cases was a 9-year-old boy who was bitten on his neck, which may have made the symptoms worse due to his smaller body size and bite location.

There has been a significant amount of research on omega-agatoxin IVA and IVB, which are found in the desert grass spider's venom.

The reduced calcium leads to a decrease in the amount of neurotransmitters in the synaptic cleft, meaning they cannot exert their effects as strongly.