revision of coelidiixae 47 



Specimens examined. 



Holotype <$, Society Is.: Raiatea I., 1200-1600 ft, Temehani Plateau, collected 

 from Metrosideros, 5.x. 1934 (E. C. Zimmerman) (BPBM, Honolulu). 



Paratypes. Society Is.: allotype $, same date as holotype (BPBM, Honolulu); 

 1 $, same data as holotype, in author's collection; Raiatea, 1 $, 1926-27 (/. W. 

 Moore) (LTF, Turku). 



Biology. Information is very meagre on this species. Data collecting labels 

 indicate that it was found on Metrosideros. 



Remarks. This is a very rare and unusual species, having the base of elytra 

 partially concealed by the anterior lateral margins of the pronotum. It also has 

 a very small scutellum which is characteristic of Tinobregmini. However, the 

 segmented male plate and bipendulate aedeagus place the species in the tribe 

 Tharrini and the genus Tharra. 



Tharra rufivena (Walker) comb. n. 



(Text-figs 98-105) 



Coelidia rufivena Walker, 1870 : 312. LECTOTYPE §, Halmahera (BMNH, London), 



here designated [examined]. 

 Coelidia rufivena Walker; Metcalf, 1964 : 73. 



Length: <J 4-90-5-30 mm, $ 5-70-6-10 mm. 



General colour fuscopiceous with veins usually light brown in <j>. black in <J. Crown fuscous 

 to light brown; eyes fuscous to brown; pronotum and scutellum piceous; elytra piceous in <£, 

 fuscopiceous in 0, veins black in <J, light brown in 5. sometimes with light brown spots in $; 

 clypeus and clypellus piceous to light brown. 



Head narrower than pronotum; crown short, barely exceeding anterior margin of eyes, 

 declivous .interiorly, disk depressed slightly on each side of middle, striate radially, lateral 

 margins slightly convex; ocelli small, situated on anterior margin of crown; eyes large, occupying 

 two-thirds entire dorsal area of head, slightly bulbous anteriolaterally; pronotum with median 

 length equal to median length of crown, surface covered with minute knobs; scutellum large, 

 median length greater than median length of pronotum; elytra elongate-ovoid, veins prominent, 

 venation as in generic description; clypeus long, broad anteriorly, narrowed posteriorly, with 

 a prominent, nearly complete median longitudinal carina, surface finely granulose, rugulose 

 along anterior margin; clypellus with lateral margins divergent apically. 



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

 curved, sclerotized, with a long filamentous secondary process arising subbasally from mesal 

 margin and extending caudodorsally; aedeagus in lateral aspect with a row of teeth on ventral 

 margin of dorsal appendage; dorsal appendage gradually tapered apically; ventral appendage 

 tube-like throughout, terminating to apex of dorsal appendage; gonopore apical; connective 

 Y-shape; style clawed apically; plate with terminal segment long and narrow. 



Female seventh sternum with posterior margin produced slightly at middle. 



Distribution. Moluccas, Bismarck Archipelago, New Guinea, Solomon Islands 

 (previously known only from the Moluccas). 



Specimens examined. 



Coelidia rufivena Walker, lectotype $, Halmahera {Wallace) (BMNH, London). 



Moluccas: Ambon, 1 $, 1903-31 (W. Doherty); Ternate, 1 £, 1903-31 (W. Doherty); Piroe, 



