64 M. W. NIELSON 



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

 terminating in a long sharp curved spine apically and a long sharp curved spine subapically 

 which projects ventrally; aedeagus in lateral aspect with a pair of lateral spines subapically, 

 a subapical row of very short spines laterally and a long membranous flange laterally on the 

 dorsal appendage; dorsal appendage broad throughout; ventral appendage narrow, tube-like, 

 slightly sinuate, sharply pointed and curved apically, apex of ventral appendage reaching apex 

 of dorsal appendage; gonopore apical; connective Y-shaped ; style not clawed, narrowed apically; 

 plate with distal segment elongate, dorsal margin expanded subapically. 



Specimens examined. 



Holotype £, New Guinea: Swart Val., W. Fork, 1300-1350111, 17. xi. 1958 

 {J. L. Gressitt) (BPBM, Honolulu). 



Biology. Unknown. 



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

 unusual apical spines on the pygofer process will separate this species from area, 

 its closest relative. 



Tharra area sp. n. 



(Text-figs 154-158) 



Length: <§ ^-^6-^-62 mm, 9 5"00 mm. 



General colour ochraceous, with lateral half of elytra fuscous. Crown, pronotum and 

 scutellum ochraceous; eyes fuscous; elytra with clavus and surrounding lateral area ochraceous, 

 lateral margins and apex fuscous, with fuscous and ochraceous admixture within cells, veins 

 deep fuscous; clypeus and clypellus ochraceous to light fuscous. 



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 

 carinate laterally, lateral margins slightly convex, slight depression medially, disk elevated 

 above eyes; ocelli small, situated anteriorly; eyes large, elongate, occupying about 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 prominent, appendix well developed, venation as in description 

 of genus; clypeus long, lateral margins nearly parallel, constricted near antennal sockets, 

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

 clypellus with lateral margins slightly concave. 



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

 process somewhat sinuate, lateral margins nearly equidistant with small, curved, subapical 

 secondary process laterally on inner margin, directed caudoventrally; aedeagus in lateral 

 aspect with dorsal appendage broad throughout; dorsal appendage with two pairs of long, 

 prominent spines, one pair basally on dorsal margin, one pair subapically on lateral margin, 

 apex curved dorsad; ventral appendage long, very narrow, tube-like, reaching apex of dorsal 

 appendage; gonopore apical, connective Y-shaped; style not clawed apically, curved laterally 

 subapically with small projection apically; plate with distal segment elongate, directed dorsad 

 with anterior margin deeply excavated. 



Specimens examined. 



Holotype $, New Guinea: Mt Kaindi, 2350 ft, 23.iii.1966 (/. L. Gressitt) (BPBM, 

 Honolulu). 



Paratypes. New Guinea: allotype $ [abdomen missing], Edie Ck., Wau, 2050 m, 



