198 CETONIIK.1-. 



rather sharp, and bears at its base a strong conical, rather com- 

 pressed, elevation. The front tibia is armed with three stout 

 and sharp teeth. 



I have only seen a single female specimen which is in the 

 British Museum. 



Length 32 mm. ; breadth 15'5 mm. 



EuBMA ; Pen-axg and Sumatka {teste Dr. Heller). 



Type in Dresden Museum. 



Division I.— Section 2. CEEMASTOCHILIIS'A. 



This group is very closely related to the previous division of 

 the Cetoniini, but in response to a different manner of life its 

 members have to a great extent lost the characteristic aspect of 

 the Subfamily. They are very various in form but generally 

 sombre-coloured and possessing well-marked pecuharities in their 

 mouth structure. They are not, like the great majority of the 

 insects previously dealt with, flower frequenters and suctorial, but 

 in general are nocturnal and occur under stones and in similar 

 situations, many of them being inmates of the nests of Ants or 

 Termites. The actual nature of their food is unknown but it is 

 evidently of a solid nature, the organs of the mouth being adapted 

 for biting and without brushes of soft hairs. 



The mandibles are no longer thin and blunt externally but 

 strongly chitiuised, with the extremities strong, sharp and directed 

 towards each other, and the internal membranes are much reduced. 

 The maxiilie end in two or three strong sharp teeth and are clothed 

 only with stiff bristles : the palpi have the basal joints very small 

 and the terminal one rather large. The mentum is broad and 

 rather smooth, not at all or but little emarginate at the front 

 margin and generally tumid beneath, its palpus having the basal 

 joints minute and the terminal one rather large. The basal joint 

 of the antenna is generally enlarged. The mesosternal epimera 

 are enlarged and reach the dorsal surface : and the scutellum is 

 extremely sharp at the apex with its sides concave. The outer 

 margins of the elytra are generally strongly sinuated behind the 

 shoulders. The last pair of spiracles is frequently situated upon 

 tubercular prominences, and sometimes the preceding one or two 

 pairs also. The mesosternal process is absent or rudimentary. 

 The front tibia) are usually bidentate, and the front tarsi in the 

 most characteristic genera are inserted so far back as to appear 

 when seen from above to consist of only three or four joints. 



The male is furnished with long branched antlers in O'oliathopsis 

 and with pads of hair upon the hind tibiae in certain species of 

 Coenochilus. In most, the abdomen is arched or excavated beneath 

 in this sex. 



In spite of tlieir typically dull colouring, bright coloured species 

 are found in the genus Macro7na,and ISjiUopJiori's has white patches 



