Mandible 



Clypeus 



Frontal area 



Frontal carina 



Frontal furrow 



Eye 



Median ocellus 



Lateral ocellus 



Vertex 



Prothorax 



Mesothorax 



Epinotum 

 Scale 



Gaster 



Funiculus 

 Scape 



Metatarsus 



Tarsus 



Fig. 1. Worker of Formica pratensis. 



