164 m. w. nielson 



Specimens examined. 



Tharra atriceps nausikoides Linnavuori, holotype J, Fiji: Loluti, 18.ix.1920 

 (W. Greenwood) (BPBM, Honolulu). 



Fiji: i ,$, same data as holotype. 



Biology. Unknown. 



Remarks. Following examination and dissection of the type of atriceps 

 nausikoides Linnavuori and comparison of this specimen with the type of atriceps 

 Linnavuori, which is a synonym of ogygia Kirkaldy, I have elevated nausikoides 

 to the species level on the following basis: the style is much more broadly clawed 

 apically, the pygofer process is much narrower and the colour patterns of the body 

 are also more distinctive than in type-specimens of atriceps and ogygia. 



Tharra stabula sp. n. 



(Text-figs 441-445) 



Length: <$ 5 mm, $ unknown. 



General colour light fuscous. Crown ochraceous with a large, deep fuscous spot on anterior 

 third; eyes light griseous; pronotum deep ochraceous; scutellum light fuscous; elytra light 

 fuscous; clypeus ochraceous at basal half, deep fuscous at apical half; clypellus ochraceous. 



Head narrower than pronotum; crown long and narrow, produced distally beyond anterior 

 margin of eyes, distal length about one-third entire median length, striate radially, slightly 

 depressed medially, lateral margins nearly parallel, disk elevated above level of eyes; ocelli 

 small, situated anteriorly; eyes large, somewhat elongate, occupying about two-thirds entire 

 dorsal area of head; pronotum short, median length less than median length of crown; 

 scutellum large, median length greater than median length of pronotum; elytra elongate, 

 veins slightly obscured, appendix well developed, venation as in description of genus; clypeus 

 elongate, broad anteriorly, narrowed posteriorly, lateral margins incised near antennal sockets, 

 without median longitudinal carina, surface finely granulose, rugulose along anterior margin; 

 clypellus with lateral margins slightly expanded apically. 



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

 process with lateral margins narrowed basally, slightly expanded medially, becoming narrowly 

 attenuated apically, outer lateral margin becoming aperturized at apical third; aedeagus in 

 lateral aspect with dorsal appendage broad at basal half, becoming constricted subapically, 

 slightly bulbous apically and curved caudodorsally, covered with numerous, very fine spicules 

 along ventral margin, without spines or flanges; ventral appendage long, narrow, tube-like, 

 slightly expanded apically, extending beyond apex of dorsal appendage; gonopore apical; 

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

 dorsal margin expanded medially. 



Specimens examined. 



Holotype $, Raja Ampat Is. (West Irian): Misool {Wallace) (BMNH, London). 

 Biology. Unknown. 



Remarks. This is a rare species known only from the holotype male and has 

 unique characteristics which separate it from all other species of Tharra by the 

 presence of the many fine spicules on the ventral margin of the aedeagus and by 

 the style, which is narrowly clawed apically. 



