86 ON THE GLAPHYRID^ OF NEW HOLLAND, 



The male has the elytra rather smooth and sericeous, while in 

 the female, they are always more or less striated and testaceous : 

 the difference, however, is only in degree. The thorax in the 

 male is always black, while in the female it is sometimes black, 

 as in the P. velutinus of Boheman, and sometimes testaceous at the 

 sides, as in his marginicollis. 



These are all the Phyllotoci with which I am acquainted ; 

 that named P. pusilhis by Blanchard, belongs to the next genus, 

 while the P. loecioralls of Burmeister from West Australia, is, as I 

 suspect, from its emarginate clypeus and other peculiarities, not 

 even a species of the family. 



Genus Cheieagka. (nov. gen.) 



Antennce articulis octo, primo magno, 2''°- subgloboso, 3° — 5° 



parvis, 6° — 8° lamellatis. 

 Lahrum inconspicuum. 



MandibulcB membranaceoe sub clypeo latentes. 

 Maxillce. lobo externo coriaceo globuliformi penicillato, interno 



dentiformi. 

 Palpi MaxiUares articulo basilari brevi, 2° et 3° longioribus, 



ultimo longiori. 

 Palpi Lahiales articulo ultimo majori. 

 Labium membranaceum bilobatum hirsutum. 

 Mentutn subelongatum subobconicum apice subrotundatum. 

 Caput parvum antice rotundatum hand angustatum. 

 Corpus subconvexum ovatum pygidio triangulari. 

 Pedes spinosi femoribus posticis crassis, tarsis unguibusque 

 anticis in mare incrassatis. 

 The insects of this genus are smaller and more depressed than 

 those of the last ; there is, however, a strong resemblance between 

 them. The main point of difference is in the clypeus, which, in 

 the last genus was produced almost to a point with a subapi- 

 cal suture, while in this it is round and without suture. The 

 fore tarsi and anterior fore ungues of the male are also enlarged 

 in a remarkable degree. 



These insects are found on the flowers of Leptospermum in 

 the early part of summer. 



