LACEBUGS OF THE WORLD 



13 



dlscoidol area-- 



sutural area -- 



cephalic spines (7) ^c~-~^r.r 



paranotum--£TT 



collar 



callus 



pronotum 



median carina- - 



scutellum__/^ 

 costal area 



subcostal — 

 area 



Figure 5. — Structures used in classification: Phatnoma agviates Drake and Ruhoff, dorsal 



aspect. 



Nova Scotia and Maine are typical tricornis and not a variety or subspecies 

 as described. 



Dictyonota fuliginosa Costa is indigenous in several countries in eastern 

 Europe. Scudder (1960) recently collected several specimens on broom 

 in western Canada (British Columbia), probably introduced there on 

 nursery stock several years ago. 



Stephanitis pyrioides (Scott), originally described from Japan, is an Asian 

 indigene and globally known as the azalea lacebug. Its synanthropic dis- 

 persal, like that of S. rhododendri, is associated with the wide culture and im 

 portation of azaleas and rhododendrons, both greenhouse and landscape 

 forms and varieties, and likewise is closely bound to its ericaceous hosts. 



