REVISION OF COELIDIIXAI-: 129 



Paratypes. New Caledonia: allotype $, Mts des Koghis, 400-600 m, i. 1969 

 (N. L. H. Krauss) (BPBM, Honolulu); 1 $, same data as holotype; 9 <$, 6 $, same 

 data as allotype; Col de Pirogue, 3 $, 23.1.-13.11.1962 (A 7 . L. H. Krauss); 6 km N. 

 of Paita, 2 $, 25. i. 1963 (C. M. Yoshimoto); Riviere Bleue, 35 km S.E. of Noumea, 

 160-180 m, 1 tJ, 14. xi. 1963 (K. Straatman); Poindimie, 1 <$, 11. ii. 1963 (N. L. H. 

 Krauss); in mts up Boulari R, 1 3", 3-4.xi.1958 (C. R. Joyce) (BPBM, Honolulu); 

 2 ^, 2 $, same data as allotype (BMNH, London); 2 <$, 2 $, same data as allotype 

 (USNM, Washington); 2 <$, 2 $, same data as allotype, in author's collection. 

 Loyalty Is.: Lifou, near We (Oue), 2-35 m, 10 <$, 5 $, 26-28. iii. 1968 (T. C. Maa) 

 (BPBM, Honolulu). 



Biology. Unknown. 



Remarks. This is a relatively large, robust species from New Caledonia and 

 can be separated from all other species of that region by the size and from its 

 nearest relative, maai, by the lack of the dentate ventral margin on the dorsal 

 appendage of the aedeagus. 



This species is named for Dr J. L. Gressitt, who collected much of the material 

 described herein. 



Tharra acusifera sp. n. 



(Text-figs 349-353) 



Length: ^ 4-io-4-30 mm, $ ^o-^-io mm. 



General colour dull ochraceous; sexual dimorphism apparent. Crown ochraceous; eyes 

 light ochraceous to rufofuscous; pronotum testaceous in $, light ochraceous in $ with a narrow 

 fuscous band anteriorly; scutellum testaceous to fuscous; elytra dull ochraceous at basal 

 two-thirds, fuscous at apical third in $, dull ochraceous throughout in £; clypeus and clypellus 

 testaceous in $, light fuscous to ochraceous in $. 



Head just slightly narrower than pronotum; crown short and broad, produced slightly 

 beyond anterior margin of eyes, distal length about or less than one-fourth entire median length, 

 striate radially, lateral margins converging basally, disk barely or slightly elevated above 

 level of eyes; ocelli small, situated anteriorly; eyes large, somewhat globular, occupying about 

 or nearly two-thirds of 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 subelongate, veins prominent, appendix distinctive but 

 not well developed, venation as in description of genus; clypeus elongate, very broad anteriorly, 

 narrowed posteriorly, slightly excised along lateral margin near antennal sockets, without 

 median longitudinal carina, surface finely granulose, broadly rugulose along anterior margin; 

 clypellus with lateral margins expanded apical ly. 



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

 margin, process with lateral margins nearly parallel, slightly constricted medially and expanded 

 apically, apical fourth distinctly aperturized along inner lateral margin, curved somewhat 

 anteriodorsally at apical half; aedeagus in lateral aspect with dorsal appendage broad at basal 

 three-fourths, constricted subapically, slightly expanded apically and curved caudodorsally; 

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

 not reaching apex of dorsal appendage; gonopore apical; connective Y-shaped; style broadly 

 and narrowly curved apically ; plate with distal segment subquadrate. 



Female seventh sternum with posterior margin nearly truncate. 

 I 



