BY W. MACLEAY, .TUN., ESQ. 187 



I have myself caught a specimen of G. distlnctum on tlie Plains 

 of the Lower Murrumbidgee. 



I may here state that I have seen specimens of C r'pencii and 

 G. carinatum taken last spring at Wingelo, by W. J . Stephens, 

 Esq. 



I now come to the description of some insects chiefly from 

 the northern interior, which, though they are almost identical in 

 many respects with the genus Garenmn, yet are so remarkable 

 for their size and width, as to induce me to place them in another 



Genus EuRYSCAPHUs. 



Antennce subfiliformes, articulo primo sabcrasso. 



Palpi labiales subsecuriformes. 



Gaput subplanum latum front-, bisulcata sulcis brevibus paral- 



lelis. 

 Thorax transversus, angulis posticis subrectis vel subrotundatis. 



Gorpiis apterum convexum subcirculare. 

 Pedes validi tibiis anticis extus bidentatis. 



The points of resemblance to Garenum in this genus are many. 

 The parts of the mouth are almost identical, and although the 

 labial palpi are less securiform than in the typical species of 

 Garenum, still there are several species included in this genus, in 

 which the palpi are still less securiform. 



The points of difference are in the longer and more filiform 

 antenna, and in the great width and circular shape of the 

 abdomen. The thorax, too, though sometimes square, and some- 

 times rounded at the posterior angles, seems to be generally lobed 

 behind as in Garenum tuberculatum, differing in this from most 

 species of Garemmi, and from all the species of Scara/phites, in 

 which the base of the thorax is rather emarginate. 



The difference in the form of the body betwixt the present 

 genus and Scaraphites, is very marked. In the first, the abdomen 

 is nearly cu'cular with a piece, as it were, scooped out at the base. 

 In the latter, the abdomen is longer than broad, and is broadest 

 near the apex. 







