60 Mr. J. Thomson and Dr. H. K. Nicholson on the 



Agapanthida scutellaris. 



A. oblonga, depressa, rufo-castanea, antennis pedibusque dilutiori- 

 bus, supra confertim punctata, griseo variegata ; scutello nigro, 

 subscutiformi, in medio excavato ; elytris apice paulo dehiscenti- 

 bus, sutura canaliculata. Long. 4 lin. 



Hah. AVaikato. 



Judging from Mr. White's figure of A. pulchella (' Voyage 

 of the Erebus and Terror,' Entom. tab. 4, fig. 10), this species 

 differs, it might be thought almost genericallj, in its shorter 

 and much thicker femora. The derm in my unique example 

 (apparently a female) seems to be covered with a membranous 

 sort of integument, peeling off" in patches ; but, from the 

 regularity on both sides, the variegation does not seem to be 

 due solely to that cause. The slight intervals between the 

 punctures on the elytra have a granulated appearance. Aga- 

 jKinthida differs from Phh/ctcenodes in its finely faceted eyes, 

 an exceptional character in its own and allied groups. 



Triplax Brounii. 



T. obovata, fusco-castanea, nitida, antennis pedibusque ferru- 

 gineis, illis articulo ultimo apice obliquo, palpis maxillaribus 

 articulo ultimo valde transverso ; capite prothoraceque subtiliter, 

 elytris fere obsolete punctatis ; tibiis modice triangularibus ; 

 prosterno postice paulo bilobo. Long. 1| lin. 

 Hah. Auckland. 



Rather narrower than T. cenea, and the elytra more cuneate. 

 The nearly allied Australian genus Thallis, Er., has filiform 

 palpi. I have named this interesting species after Captain 

 Broun, whose numerous discoveries are adding so much to our 

 knowledge of the insect-fauna of New Zealand. 



VIII. — Contributions to the Study of the chief Generic 

 Types of the Falceozoic Corals. By James Thomson, 

 F.G-.S., and H. Alleyne Nicholson, M.D., D.Sc, 

 F.R.S.E., Professor of Natural History in the University 

 of St. Andrews. 



[Contiuued from vol. xvi. p. 429,] 



[Plates VL & VII.] 



Genus Cyathophtllum. 



Cyathophi/Uum, Goldfuss (in parte), Petref. Gerpi. vol. i. p. 54, 1826. 



Gen. char. Corallum simple or compound, with a well- 

 developed epitheca. Tabula^ not complete, but well developed 

 and occupying a central area, which is surrounded by a more 



