152 



M. W. NIELSON 



considerably above level of eyes; ocelli small, situated anteriorly; eyes moderate size, 

 subglobular, occupying slightly over two-thirds entire dorsal area of head; pronotum short, 

 median length less than median length of crown, surface finely knobbed; scutellum large, 

 median length greater than median length of pronotum; elytra elongate, veins distinctive, 

 appendix well developed, venation as in description of genus ; clypeus elongate, slightly broader 

 anteriorly than posteriorly, lateral margins excised medially near antennal sockets, without 

 median longitudinal carina, surface finely granulose at basal two-thirds, distinctively rugulose 

 along apical third; clypellus with lateral margins broadly expanded apically. 



Male pygofer in lateral aspect with long, very strongly curved process arising from caudoventral 

 margin, process with lateral margins nearly equidistant throughout, except for apical fourth, 

 outer lateral margins slightly expanded subapically, becoming attenuated or finger-like 

 apically and projecting almost dorso-anteriorly ; aedeagus in lateral aspect with dorsal appendage 

 broad at basal three-fourths, becoming narrowly attenuated subapically and slightly curved 

 caudodorsally at apex, without spines or flanges; ventral appendage long, narrow, tube-like, 



S\ 



420 



418 



419 



Figs 416—420. Tharra constricta sp. n. 416, male pygofer, lateral view; 417, plate, 

 lateral view; 418, aedeagus, lateral view; 419, aedeagus, dorsal view; 420, style, lateral 

 view. 



