BY R. J. TiLLYARb. 223 



picions as these determined me to undertake a study of the 

 puj)al wing-ti-acheation at the earUest fa\ ourable moment. The 

 chance occurred chn-ing my recent visit to South Queensland. 

 Chrysopido' were quite connnon, and it was easy to obtain, not 

 only larvie from citrus trees and various conifers, but also eggs 

 in great al)undance from mature females confined in i)ill-l)()xes. 

 On my return to Sydney at the end of October last, T brought 

 with me a number of eggs and larv;e. T also arranged with 

 various correspondents to keep up the supply by post. In this 

 connection, I desire to thank Miss C Jensen, of Caboolture, 

 Queensland, and Mr. Luke Gallard, of Epping, near Sydney, for 

 maintaining a plentiful supply of larv;e throughout an excep- 

 tionally dry period of the year, during which the scarcity of 

 aphides made the rearing of these little creatures a very difficult 

 matter. 



Most of the Australian species of Chrysopidcf are not named. 

 I had four species to work on, three belonging to the geiuis 

 (Jhri/Sdpa, and one to Xofhochri/.s(i. This last was of lai'ge size, 

 and promised fine results. Unfortunately, of all the ])upie ob- 

 tained (mostly from Mr. Oallard), not a single one was suitable 

 for the work. About sixty per cent, of them were ichneumoned; 

 the remainder were far too ath anced towards the imaginal instar 

 to be of any value. The next most promising was a moderately 

 large species of (Jhrysopa, not unconunon both in Brisbane and 

 Sydney, which T shall designate (Jhrysopn \, for the purposes i>f 

 this paper. Two broods of this species were reared from eggs 

 laid in Brisbane. But owing to the extreme drought, I failed 

 to find enough aphis to keep them ali\e, and only three pupatetl. 

 From one of these, the photomicrograph in Plate xi., fig. -5, was 

 obtained. 



An exceedingly small species, (Jhrysopn B, pupated in numbers. 

 But the cocoons were so small (diameter 1'4 nun.), and the pupje 

 so delicate, that onlv moderate results were obtained with them. 

 These results helped materially in the successful solution of the 

 problem in hand, but none of the j^hotographs taken were good 

 enough to publish. 



