176 



M. W. NIELSON 



Tharra flavocosta sp. n. 



(Text-figs 474-478) 



Length: $ 4-70 mm, $ unknown. 



General colour testaceous with ivory or yellow band along costal area of elytra and a broad 

 ivory or yellow band extending from the anterior margin of the middle of the pronotum distad 

 to the apex of the elytra. Crown deep testaceous; eyes fuscous; pronotum testaceous along 

 each lateral side of pronotum, yellow triangular area anterior to posterior border; scutellum 

 with lateral angles fuscous to testaceous, broad yellow band medially; elytra fuscous to 

 testaceous with a broad yellow or ivory band along costal area and another broad yellow-ivory 

 band extending from the anterior margin of the clavus to the posterior margin of the elytra; 

 clypeus and clypellus testaceous; lora and genae yellow. 



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

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

 depressed medially, slightly carinate laterally, disk elevated considerably above level of eyes; 

 ocelli small, situated anteriorly; eyes large, somewhat elongate, occupying 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 elongate, veins prominent, appendix well developed, venation as in description of genus; 

 clypeus elongate, broad anteriorly, narrowed posteriorly, lateral margins somewhat excised 

 near middle near antennal sockets, anterior half angled in ventral view giving appearance of a 

 median longitudinal carina along middle, surface finely granulose, broadly rugulose along 

 anterior margin; clypellus with lateral margin expanded distally. 



Male pygofer in lateral aspect with broad, short, curved process arising from near middle 

 of caudal margin, process with lateral margins very broad basally, becoming attenuated and 

 tapered apically; aedeagus in lateral aspect with dorsal appendage broad at basal half, becoming 

 attenuated apically, constricted subapically, slightly expanded apically and curved 

 caudodorsally, without spines or flanges ; ventral appendage long, tube-like, somewhat expanded 

 apically, extending beyond apex of dorsal appendage; gonopore apical; connective Y-shaped; 

 style typically clawed apically; plate with distal segment elongate, narrow, dorsal margin 

 expanded medially. 



Specimens examined. 



Holotype <$, Solomon Is.: Malaita, Auki, 2-20 m, 18.xi.1957 (/. L. Gressitt) 

 (BPBM, Honolulu). 



Paratype. Solomon Is.: S. Mala, Mukka, 1 $, 23. v. 1934 (R. A. Lever) (BMNH, 

 London). 



Biology. Unknown. 



Remarks. This species is easily distinguished in general habitus by the long, 

 transverse fuscous band with yellow transverse bands on either side. 



Tharra dorsimacula (Walker) comb. n. 

 (Text-figs 479-483) 



Coelidia dorsimacula Walker, 1870 : 314. Holotype §, New Guinea (BMNH, London) 



[examined]. 

 Coelidia roseifascia Walker, 1870:315. LECTOTYPE <j>, Moluccas: Morotai (BMNH, 



London), here designated [examined]. Syn. n. 

 Coelidia selecta Walker, 1870 : 315. LECTOTYPE $, Moluccas: Sula I. (BMNH, London), 



here designated [examined]. Syn. n. 



