BV W. ISIACLEAY, JUX., ESQ. I7 



side of the scutellum, and a I'oiind ocellus looking sjjot near 

 the apex of each elytron ; the pygidiuni has the centre and 

 several small spots, black ; the legs and abdominal segments are 

 reddish, variegated with yellow ; the under surface is but slightly 

 pilose. 



15. S. DECORTICATA. 



Atra nitida punctata maculis glabris decorticatis, thoracis 

 lateribus elytrorumque maculis duabus discalibus lacti- 

 floreis ; mesosterno utrinque maculis duabus, segmentorum- 

 que abdominalium lateribus albis. 

 Long. 6 lin., lat. 3 lin. 

 Hab. Port Denison. 

 Deep shining black ; head and thorax punctured ; scutellum 

 smooth ; elytra striato-punctate. Along the lateral margins of 

 the thorax, and on the disk of each elytron, is a dull depressed 

 cream-coloured patch ; spots of the same character, but nearly 

 white, are to be found on the sides of the mesothorax and abdo- 

 minal segments, and generally two on the pygidium, which is 

 finely acuducted. 



16. S. ASSIMILIS. 



Atra nitida thorace punctato lateribus lactifloreis, elytris 

 striato-punctatis, pygidio mesosterni segmeutorumque 

 abdoTiinalium lateribus albo-guttatis. 



Long. 6 lin. ; lat. 3 lin. 



Hab. Port Denison. 



Black, shining ; head and thorax punctured, the latter with 

 two yellow depressed spots, running into one another on each 

 lateral margin. .The elytra are coarsely and indistinctly striato- 

 punctate. The mesosternum and abdominal segments have each 

 a lateral white spot ; the pygidium has two small spots of the 

 same hue. 



This is, probably, a variety of the last described species, the 

 sculpture seems to be identical, and the main difference seems to 

 be that there is not a vestige of the decorticated patch on the 

 elytra, which is such a distinguishing feature in S. decorticata. 



The four following species differ considerably in form and 

 general appearance, from the rest of the Australian Cetoniidte. 



