BY H. RAWES WHITTELL, ESQ. 33 



therein, and these cells were sub-divided as I had witnessed in the 

 first instance. 



There is no possibility of mistaking the ova, that of Larrada 

 Australis, being only about half the size of that of Pelopoeus 

 Icetus. The Larrada does not go to the river for the material 

 used in subdividing the cell, but takes it from any convenient part 

 of the nest it has attacked, moistening it with a secretion of its 

 own, it also, when at work, emits the same sound as Pelopoeus 

 kttus, but so faintly as to be only distinguished at very close 

 quarters. 



I could not discover what was done with the ovum of Pelopoeus 

 but I believe it is devoured by the Larrada before it deposits 

 its own. If it were thrown out of the cell I should have seen 

 it done I think, and it was certainly not in any of the cells I 

 then examined, so that the only way it could be disposed of is as 

 I have suggested. If it is eaten by Larrada Australis, what pur- 

 pose does this serve, it is surely not the natural food of this 

 insect 1 



The locality from which these specimens came, and where my 

 observations were made, is situated in about 31° 30 ' south latitude, 

 and longitude about 143° 30 ; east, and about six miles from the 

 town of Wilcannia on the Darling Eiver. 



On the Voracity of a species of Heterostoma. 



By H. Rawes Whittell, Esq. 



On the 18th September, 1879, while insect hunting, 1 turned 

 over a dead log, and beheld to my surprise a lizard ( Diplodac 

 tyhts), held fast by a centipede of the genus Heterostoma, which 

 was eating it alive. Neither seemed in any way disturbed by my 

 intrusion. I sat down to watch results, and occasionally stirred 

 up the Diplodactylus with a stick, which caused it to make feeble 

 and futile efforts to release itself. 

 c 



