REVISION OF COELIDIINAE 13 



Key to the tribes of COELIDIINAE 



1 Base of elytra exposed .......... 2 



Base of elytra concealed .... TINOBREGMINI Oman (p. 13) 



2 (1) Pronotum unicarinate laterally ......... 3 



Pronotum bicarinate laterally . . . SANDERSELLINI DeLong (p. 20) 



3 (2) Male plate segmented subbas illy, often appressed laterally .... 4 



- Male plate entire, usually ventrally appressed to pygofer .... 5 



4 (3) Aedeagus bipcndulate (unipendulate in Neotharra), without paraphysis; style 



clawed or hooked apically; plate elliptical, subglobular, or subquadrate 



THARRINI trib. n. (p. 31) 



- Aedeagus not bipendulate, with large ventral paraphysis articulated basally 



with connective or with paired, long slender processes arising from base of 

 aedeagus; style usually lanceolate; plate long and very narrow (exception 

 Tahara) THAGRIINI Distant 



5 (3) Clypeus with complete median longitudinal carina or with broad, elevated 



median Longitudinal ridge .... TERULIINI trib. n. 



- Clypeus without median longitudinal carina or elevated ridge or with partially 



complete carina ...... COELIDIINI Dohrn 



Tribe TINOBREGMINI Oman 



Tinobregmini Oman, 1949 : 35. Type-genus: Tinobre»niHs Van Duzee. 



Small, coelidiine leafhoppers; brachypterous, or subbrachypterous; sexual dimorphism 

 apparent. 



Head narrower than pronotum, crown significant ly produced beyond proximal margin of 

 eyes, broad apically and narrowed basally; pronotum small, smooth, posterior margin concealing 

 base of elytra; scutellum small, elytra with obscure venation and with five apical cells, three 

 anteapical cells; hind wings very small, nonfunctional in brachypterous morphs; clypeus long 

 and narrow without median longitudinal carina ; clypellus extending distally beyond margin 

 of genae; setal arrangement on hind femur 2 : 2 : 1. 



Male genitalia symmetrical or slightly asymmetrical. 



The tribe is restricted to the new world. Only two genera are known. DeLong 

 (1969) regarded Chilelana DeLong as a close relative of Tinobregmus Van Duzee 

 with which I agree and have therefore placed the former genus in Tinobregmini. 

 The tribe can be distinguished from all others in Coelidiinae by the concealed 

 bases of the elytra, a character heretofore unreported. 



Key to the genera of TINOBREGMINI 



Pronotum with lateral carina dorsad of costal margin of elytra; middle anteapical 

 cell open; aedeagus symmetrical, narrow with apical two-thirds tapered, 

 subcirculate in lateral aspect; gonopore apical (Text-fig. 12) CHILELANA DeLong 



(P- 14) 

 Pronotum with lateral carina in line with costal margin of elytra ; middle anteapical 

 cell closed; aedeagus slightly asymmetrical, tube-like, slightly sinuate and curved 

 apically in lateral aspect; gonopore subapical (Text-fig. in) 



TINOBREGMUS Van Duzee (p. 16) 



