138 Mr. C. O. Waterhouse on Cetonia opalina. 



green, much attenuated posteriorly, rather thickly and very 

 distinctly punctured; the suture is impressed towards the 

 apex, and, like the apex, is closely and finely strigose-punctu- 

 late (as it were frosted) ; on the sides behind the middle there 

 is an elongate slightly oblique velvety patch. 



S . Abdomen with the 6th segment broadly and strongly 

 emarginate. 



? . Abdomen with the 5th segment triangularly notched in 



the middle. 



Hob. Borneo, Sarawak. 



Lamiidse. 



Etymestia alboguttata, sp. n. 



E. nigra, subvelutina, plus minusve griseo-tomentosa ; ely tris guttis 

 octo niveis ; antennis nigris, articulis tertio ad septimum basi 

 flavis. 



Long. 13 lin. 



Form and size of E. Helena, White, but totally differently 

 coloured. Head and thorax black, with a little grey pubes- 

 cence at the sides. Scutellum grey. Elytra with a few 

 punctures on the shoulders, velvety black, with an oblique 

 fascia close to the base, another in the middle, dentate, and a 

 third at the apex, grey ; the basal and mesial fascise united at 

 the suture ; each elytron has four round rather small white 

 spots placed transversely two before and two behind the 

 middle. 



Hab. Borneo. 



XVI. — Note on Cetonia opalina, L. & O., with a Description 

 of an allied Species. By Charles O. Waterhouse. 



The British Museum has recently received from two collec- 

 tions a species of Cetonia from Madagascar, which was re- 

 ferred to Cetonia (Coptomia) opalina of Lap. & Gory, but 

 with some hesitation on account of the colour of the legs. 

 With the view of ascertaining certain points I wrote to Prof. 

 Westwood for some notes on the type in the Hopean collec- 

 tion; and he has kindly furnished me with the following 

 valuable remarks, which show very clearly that the British- 

 Museum examples are a distinct species. 



" The type of Cetonia opalina (Hope), Lap. & Gory, is a 

 male, and has Hope's label 'Mauritius?' It has a slight 

 impression on the basal segments of the ventral surface of the 

 abdomen ; and the exposed lateral margins of the abdomen. 



