288 notes on the life-history of certain saw-flies. 



6, Perga Foersteri. 



Perga Fcersteri, West P. Z. S. 1880, p. 368, pi. xxxvi. fig. 1. 



LarvcB : uniform black without any yellow on the legs or abdo- 

 men. Length 1^ inches. 



I took a cluster of the larvse of this species feeding on Uuca 

 lyptus corymbosa, at Rose Bay, on October 14th. They went 

 into the sand three days after, making isolated cocoons at the 

 bottom of the jar. The first one did not emerge until May 3rd, 

 and during the week six more came out ; of these two were 

 males and five females. As only the male has been described 

 and the female difiers considerably, I give a brief description. 

 Female difiers from male in having the hind portion of head and 

 the V-shaped middle lobe of the mesonotum reddish-brown ; the 

 three posterior segments of the abdomen reddish-brown ; the 

 white markings on the sides of the abdomen much smaller ; and 

 the wings only slightly clouded at the tips. 



