74 M. W. NIELSON 



in description of genus; clypeus long, broad anteriorly, narrowed posteriorly, without median 

 longitudinal carina, surface finely granulose, anterior margin broadly rugulose; clypellus with 

 lateral margins nearly parallel. 



Male pygofer in lateral aspect with long, narrow, curved process arising caudoventrally, 

 process with lateral margins nearly equidistant, apical half aperturized on inner lateral margin, 

 striate apically; aedeagus in lateral aspect simple; dorsal appendage attenuated apically, 

 constricted subapically, curved caudodorsally apically; ventral appendage long, narrow, tube-like 

 reaching apex of dorsal appendage; gonopore apical; connective Y-shaped; style clawed, 

 apically; plate with terminal segment elongate, lateral margin slightly swollen subapically. 



Specimens examined. 



Holotype <$, New Caledonia: Bourail, iii. 1959 (N. L. H. Krauss) (BPBM, 

 Honolulu). 



Paratypes. New Caledonia: Concepcion, 1 g, 5.X1.1944 (Wilfred Cr abb) (USNM, 

 Washington); 1 <$, 18.ix.1944 (/. G. Herron) (NCSU, Raleigh). 



Biology. Unknown. 



Remarks. Tharra vesca is one of the smallest species in the genus Tharra. 

 It is closely related to kraussi in general habitus, but can be separated from that 

 species by the absence of a flange on the dorsal appendage of the aedeagus. 



Tharra labena (Kirkaldy) 

 (Text-figs 184-188) 



Tharra labena Kirkaldy, 1906 : 325. Holotype $, Australia: Queensland (BPBM, Honolulu) 



[examined] . 

 Tharra labena Kirkaldy; Metcalf, 1964 : 24. 

 Tharra labena Kirkaldy; Evans, 1966 : 188. 

 Tharra labena Kirkaldy; Evans, 1971 : 47. 



Length: g 5 -00-5 -30 mm, O. 6-oo mm. 



General colour ochraceous, sometimes with spots along apex of costa. Crown ochraceous; 

 eyes deep fuscous; pronotum and scutellum ochraceous; elytra ochraceous, sometimes with 

 light fuscous markings or spots along the apex of the costa, apex sometimes suffused with 

 light brown; clypeus rufous; clypellus ochraceous. 



Head distinctly narrower than pronotum; crown produced distally beyond anterior margin 

 of eyes, distal length about one-third entire median length, striate radially, depressed medially, 

 lateral margins nearly parallel, disk considerably elevated above level of eyes; ocelli medium 

 size, situated anteriorly; eyes large, elongate, occupying nearly two-thirds entire dorsal area 

 of head; pronotum large, median length greater than median length of crown, surface finely 

 knobbed; scutellum large, median length equal to median length of pronotum; elytra elongate, 

 veins prominent, appendix well developed, venation as in description of genus; clypeus long, 

 anterior margin broad, narrowed posteriorly, without median longitudinal carina, surface 

 finely knobbed, narrowly rugulose along anterior margin; clypellus with lateral margins 

 strongly divergent. 



Male pygofer in lateral aspect with long, curved, slender, sharply pointed process, broad 

 basally; aedeagus in lateral aspect with flanges; dorsal appendage swollen at basal half, tube like 

 at apical half with small spicules along the ventral subapical margin, dorsal margin dentate 

 basally, flange on either side of middle, and a pair of ventral flanges basally along ventral 

 margin; ventral appendage short, tube-like, reaching apex of dorsal appendage; gonopore 

 apical; connective Y-shaped; style clawed apically; plate with distal segment elongate, slightly 

 enlarged subapically. 



