LEAFHOPPER SUBFAMILY NEOCOELIDIINAE — ^KRAMER 261 



Key to Genera of Neocoelidiinae 



1. Aedeagus consisting of two shafts, one above other, dorsal shaft bearing 



gonoduct (figs. 2, 8, 17) Neocoelidia Gillette and Baker 



Aedeagus consisting of single shaft, which may be simple or elaborated with 

 processes (figs. 42, 99) 2 



2. Face and crown separated by carina, which is as long as distance between 



ocelli 5 



Face and crown not separated by carina (i.e., carina absent) 3 



3. Ocelli located on face below anterior margin of crown; clypellus distinctly 



expanded distally; connective cruciform . . Chinaia Bruner and Metcalf 

 Ocelli located on anterior margin of crown; clypellus not distinctly ex- 

 panded distally; connective Y-shaped or nearly so 4 



4. Aedeagus without apical modifications but with long recurved lateral, 



paired processes; male plates fused for entire length. 



Deltocoelidia Kramer 



Aedeagus with apical modifications but without lateral processes; male 



plates not fused for entire length Xenocoelidia Kramer 



5. Exceedingly large and robust forms, males over 12 mm. in length; head in- 



cluding eyes less than two-thirds pronotal width. 



Megacoelidia Kramer and Linnavuori 

 Small to moderate-sized species, males less than 10 mm. in length; head in- 

 cluding eyes always more than two-thirds pronotal width 6 



6. Ventral margin of male pygofer with distinct apical or preapical hook or 



pygofer terminating with pointed process (figs. 75, 81) 8 



Ventral margin of male pygofer without hooks and pygofer not terminating 

 with pointed process 7 



7. Aedeagus strongly asymmetrical; pygofer with dorsal process; styles of 



moderate length, not wrinkled, well sclerotized (figs. 49, 45, 47). 



Tozzita, new genus 



Aedeagus symmetrical; pygofer without dorsal process; styles long, wrinkled, 



and weakly sclerotized (figs. 58, 55, 60) Xiqilliba, new genus 



8. Male pygofer inflated, laterally with distinct dorsoventral suture, hook on 



ventral margin large and heavy (fig. 50) Coelana DeLong 



Male pygofer not inflated, laterally without distinct dorsoventral suture, 

 hook on ventral margin small, slender, or absent 9 



9. Aedeagus asymmetrical and deeply cleft dorsoventrally ; pygofer with 



crossed internal processes at apex Tichocoelidia Kramer 



Aedeagus symmetrical but at times twisted, never deeply cleft; crossed 

 processes of pygofer, if present, external 10 



10. Apex of pygofer in lateral view appearing cleft due to long mesally curved 



dorsal hook and weakly sclerotized ventral extension; stylar apex in 



dorsal view curving laterally and caudally (figs. 62, 65) . Salvina Melichar 



Apex of pygofer in lateral view and stylar apex in dorsal view not as above . 1 1 



11. Anal tube of male with forked ventral hook; ventral cover of genital capsule 



sharply narrowed on distal half appearing as two extended "fingers" 



(figs. 67, 70) Cocoelidia DeLong 



Anal tube of male with single simple or pair of ventral hooks or none; ventral 

 cover of genital capsule not as above 12 



12. With small but distinct dark-brown or black spot at apex of crown. ... 15 

 Without spot at apex of crown 13 



