LACEBUGS OF THE WORLD 



11 



mesosterna 

 lamina 



metasrernal 

 lamina 



mesosrernum 



\ metasternum 



notal carinae (5) 



discoidal area 



— stenocostal area 



— costal area 



subcostal area 



surural area 



Figure 4,-Structures used in classification: a, Gargaphia tiliae (Walsh) interrupted rostra 

 channel on metasternum; b, Cantacader amydis Drake, dorsal aspect. 



