What distinct physical feature leads to alarm or misidentification in Dysdera crocata?

Answer

Large, forward-slanting chelicerae and fangs

The appearance of the woodlouse spider often causes alarm due to its disproportionately large, forward-slanting chelicerae and fangs. These powerful jaws are a crucial adaptation developed specifically for its specialized hunting strategy, enabling it to effectively pierce the tough, external armor plating of its primary isopod prey, the woodlouse. While the spider also features a reddish-orange cephalothorax and legs contrasting with a pale abdomen, it is these intimidating jaws that are the most frequently noted distinguishing characteristic leading to misidentification or fear, especially when contrasted with spiders lacking such prominent mouthparts.

What distinct physical feature leads to alarm or misidentification in Dysdera crocata?
locationspiderarachnidinvertebratewoodlouse