Summary
Grass spiders have long, prominent rear spinnerets and bold stripes on the cephalothorax. Hobo spiders have short spinnerets and a more subdued pattern.
Diagnostic traits
| Trait | Grass Spider | Hobo Spider |
|---|---|---|
| Rear spinnerets | Long, finger-like, visible from above | Short, barely visible |
| Cephalothorax | Two bold dark longitudinal stripes | Subdued stripes |
| Web placement | Outdoor lawns, shrubs | Basements, window wells, garages |
The bottom line
At-a-glance comparison
| Grass Spider | Hobo Spider | |
|---|---|---|
| Scientific | Agelenopsis spp. | Eratigena agrestis |
| Family | Agelenidae | Agelenidae |
| ♀ body | 10–20 mm | 11–15 mm |
| Leg span | 25–45 mm | 27–45 mm |
| Range | 1 U.S. states | 7 U.S. states |
| Medical | Not medically significant | Low |