chaetotaxy
/kætəˈɒtæksi/Definitions
1. noun
The study of the distribution and arrangement of hairs and other setae (bristles or spines) on the body of an arthropod, especially an insect.
“The entomologist used chaetotaxy to classify the new species of beetle.”
2. noun
A description or analysis of the setae on an arthropod’s body.
“The chaetotaxy of the spider was an essential part of the study.”