Acer 

 Ostrya 

 Carpinus 

 Aesculus 



Crataegus 

 Acer 



Hicoria 



Asimina 

 Ostrya 

 Acer 



Hicoria 

 Prunus 



(a) 



Acer 



Carpinus 



Cory I us - 

 Ostrya — 

 Aesculus 



Crataegus 



Acer 



Quercus — 

 Que reus — 



Rubus 



Quercus — 

 Ouercus — 



Carpinus 



Ouercus - 

 Ulmus — 



Quercus 

 ?Hicoria 

 Ouercus - 



Quercus - 



• luculents 

 -di repta 



-aculeata 

 •spala (2) 

 •pyra (2) 



■ ininorr 

 ingrata 



- rotunda 

 • parva (3 

 -gemina (10) 



■ cox i 

 -geron 

 •accol 



• triang 



certa- 



Asimina 



-solita (M) 



Ibasi laris (7) 

 contract 

 kansana 

 emquu 

 -rnira (U 

 - turg ida 

 -lenta (38 



conf i rmat 

 trivittata (U) 



corylorubra (2) — Corylus 



ostryae ■ 

 citrosa • 

 fausta — 



f lexibi I is' 

 cal i fornica- 

 lawsoni (6)~ 



Oman i 



sept i ma 



lunata 



rostrata (2)- 

 arenosa (3)— 

 lata (U) 



eversi 



acericola — 



seperata 



stannarrt i — 



I igata 



stove ri 



harti 



misera (2) 

 phellos (2)— 

 externa (3)— 

 osborni 



• Ostrya 



• Corylus 

 Acer 



• Corylus 

 -Platanus 

 -Malus 

 -TAesculus 



- Quercus 



- Prunus 



- Corylus 



• Corylus 



• Acer 

 ■Tilia 

 -Quercus 

 -Quercus 



■ Malus 



-Quercus 

 -Quercus 

 -Hicoria 

 -Prunus 



bal I ista 



imbricariae (2) — Quercus 



maculata (U)- 



-Rhus 



(b) 



Fig. 82. (a) Phylogenetic tree of the species complexes comprising the 

 maculata group of the leafhopper genus Enjthroneura together with their known 

 host plants. The letter C indicates a putative ancestral form occurring on 

 Corylus. The black silhouettes indicate progressive changes in the style of the 

 male genitalia. Numbers indicate the number of species in each complex. 

 (b) The phylogenetic tree with the names of the species complexes omitted 

 and the apparent ancestral host Quercus indicated by the letter Q. 



