REVISION OF COELIDIINAE 151 



Head distinctly narrower than pronotum; crown distinctly produced beyond anterior margin 

 of eyes, distal length over one-third entire median length, striate radially, deeply depressed 

 along middle, lateral margins carinate, slightly concave, disk elevated above level of eyes; 

 ocelli small, situated anteriorly; eyes moderate size, occupying about one-third entire dorsal 

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

 knobbed, anterior margin somewhat concave; 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, somewhat narrowed posteriorly, 

 lateral margins deeply excavated along middle near antennal sockets, without median 

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

 with lateral margins expanded apically. 



Male pygofcr in lateral aspect with long, curved process arising from near middle of caudal 

 margin, process with lateral margins nearly equidistant throughout, constricted subapically 

 to a narrow, finger-like lobe; aedeagus in lateral aspect with dorsal appendage broad at basal 

 half, becoming narrowly attenuated at apical half and slightly curved dorsally, apex slightly 

 expanded, without spines or flanges; ventral app adage very long, narrow, at basal three-fourths 

 becoming expanded apically to subquadrate shape and extending considerably beyond apex 

 of dorsal appendage; gonopore apical; connective Y-shaped; style clawed apically; plate 

 with distal segment elongate, nearly twice as long as wide, with dorsal margin slightly expanded. 



Female seventh sternum with posterior margin considerably produced medially. 



Specimens examined. 



Holotype <$, Solomon Is.: Florida Islands, Ngglea, Haleta, 0-50111, 17.x. 1964 

 (R. Straatman) (BPBM, Honolulu). 



Paratypes. Solomon Is.: allotype 9> San Cristobal, Bwcinaniawarikiapu, 

 I2.viii.i960 (C. W. O'Brien) (BPBM, Honolulu); Guadalcanal, Tathimani, 1 $, 

 14.V.1960 (C. W. O'Brien); Santa Ysabel, Kolotuve, I ;, 21.vi.1960 (C. W. O'Brien); 

 Santa Ysabel, Tatamba, 3 9. n-13.vi.1960 (C. W. O'Brien) (BPBM, Honolulu); 

 Russell Island, Samata, 1^,1$, 15. ix. 1934 (R. A. Lever); Guadalcanal Island, 

 Ruavatu, 1 <$, 2. v. 1934 (R. A. Lever); Ysabel Island, Tatamba, 7.VU.1935 (A*. E. 

 Lever) (BMNH, London); Santa Ysabel, Kologajoga, 1 <$, 23.vi.1960 (C. W. O'Brien); 

 Santa Ysabel, Tatamba, 1 9» 13. vi. i960 (C. W. O'Brien), in author's collection. 



Biology. Unknown. 



Remarks. This species has unique characters of the head and of the pronotum, 

 which are similar to other long-headed species of Tharra, but can be separated 

 from them by the unique subquadrate apex of the ventral appendage of the aedeagus. 



Tharra constricta sp. n. 



(Text-figs 416-420) 



Length: $ 5 -40— 5-90 mm, $ unknown. 



General colour fuscous. Crown fuscous with ochraccous along lateral margins and middle; 

 eyes rufofuscous; pronotum light rufofuscous; scutellum deep fuscous to testaceous anteriorly, 

 ochraceous posteriorly; elytra fuscous with ochraceous area terminating at commissural line 

 and with an ochraceous band subapically; clypeus ochraceous with an incomplete fuscous 

 transverse band subapically; 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 slightly carinate, converging basally, disk elevated 



