REVISION OF COELIDIINAE 35 



processes or spines; ventral appendage very slender, tube-like, traversed by gonoduct; 

 gonopore terminal: connective Y-shaped, arms broad; style small, often clawed apically; 

 plate variable interspecifically, long to subquadrate, often with long, numerous, very fine 

 setae submarginally. 



Female seventh sternum simple with anterior margin nearly truncate or produced distally 

 along middle. 



Tharra is a very large genus with evidence of specialization among the long- 

 headed forms. Speciation is also recognized and may be more prolific than 

 realized from the present study of the group. The genus is widespread throughout 

 the Oriental region which includes Micronesia, Philippines, Malaysia and Indonesia. 

 The genus is easily distinguished from Neotharra by the bipendulate aedeagus. 



Key to the species of THARRA 

 (Males) 



1 Head strongly produced anteriorly, crown distad of proximal margin of eyes 



nearly one-half to over half entire median length, apex sharply conical 

 (Text-figs 75, 84, 504, 507) 2 



- Head not strongly produced anteriorly, crown distad of proximal margin of 



eyes always less than one-half entire median length, apex bluntly conical or 

 rounded (Text-figs 93, 100, 113) . . . . . . . . 4 



2 (1) Pygofer in lateral aspect with long process arising from caudoventral margin 



(Text-fig. 79) ; aedeagus without spines (Text-figs 86, 90) .... 3 



Pygofer in lateral aspect with very short process arising from middle of caudal 

 margin (Text-fig. 73) ; aedeagus with spines (Text-figs 76, 77) 



tin rata (Stal) (p. 41) 



3 (2) Pygofer in lateral aspect with flat, blade-like process, terminating to short 



linger-like lobe (Text-fig. 79); plate with terminal segment subquadrate 

 (Text-fig. 81) . . . . . . . . frontalis sp. n. (p. 42) 



- Pygofer in lateral aspect with process not blade-like, curved, constricted 



medially and enlarged subapically, slightly twisted apically, with terminal 

 finger-like lobe (Text-fig. 88) ; plate with terminal segment elongate 

 (Text-fig. 89) ........ flamma sp. n. (p. 44) 



4 (1) Scutellum large, median length greater than or nearly equal to median length of 



pronotum (Text-fig. 84) ......... 5 



- Scutellum small, median length always less than median length of pronotum 



(Text-fig. 93) .... nitida sp. n. (p. 45) 



5 (4) Clypeus with prominent median longitudinal carina extending basad of 



antennal fossa ........... 6 



- Clypeus without median longitudinal carina, if present, very weak and partially 



visible, extending to antennal fossa ....... 10 



6 (5) Pygofer process with basal or accessory processes (Text-figs 98, 106); aedeagus 



with row of teeth on ventral margin of dorsal appendage (Text-figs 103, no) 7 



- Pygofer process without secondary processes (Text-figs III, 119, 124); aedeagus 



without teeth (Text-figs 116, 121, 126) ...... 8 



7 (6) Pygofer process short, sclerotized, with a very long secondary filamentous 



process (Text-fig. 98) ..... rufivena (Walker) (p. 47) 



Pygofer process long with single large subbasal process and several sharp 

 toothed processes or serrations on distal half (Text-fig. 106) 



papuaensis sp. n. (p. 49) 



