APPENDIX. 515 



sub-trigonate one divided into three parts by the median ner- 

 vules. Below, the markings are nearly as above, with the 

 addition of a greenish line along the eosta of the anterior 

 wings, bending downwards at its termination. Posterior 

 wings encircled by a marginal band of the same greenish 

 colour. 



Head black, orbits of the eyes and a line across the vertex 

 white. Palpi bright crimson except the last joint which is 

 black. Antennae black. Thorax black. Abdomen above 

 black, the base and the edges of four of the segments whitish, 

 last segment bright crimson ; below, whitish at the base, crimson 

 beyond the middle. 



Exp. alar. 2 un. 9 lin. 



Hab. New Holland. 



Genus Synemon, Doubleday. 



Head round, eyes large, forehead broad. 



Maxillas rather long. 



Labial palpi short, clothed with dense long scales, first joint 

 short, second more than double the length of the first, tapering 

 towards its extremity, third joint about equal in length to the 

 second, subcylindric, tapering towards the apex. Antennae 

 with a stout, short club, more or less mucronate at the apex, 

 the mucro mostly if not always with a tuft of scales at the 

 point, the club sometimes appearing compressed (perhaps from 

 desiccation.) 



Thorax stout, anterior wings triangular, the costal nervure 

 terminating about the middle of the costa, the sub-costal ter- 

 minating: in five nervules of which the first and second one are 

 thrown off" before the disco-cellular nervule, the third almost 

 immediately beyond it, the fourth rather further from the 

 third than this is from the second ; discoidal nervules almost 

 atrophied at their origin, the first connected with thy sub- 

 costal nervure, the latter with the third median nervule by 

 a very short discocellular ; the discoidal nervule itself almost 



