APPENDIX. 



THE EARLY STAGES OK ICHNEUMON PAUA.^ITES. (ianin has 

 shown that certain Pmctotrypidw (Plat>/</<ixt< j r. Poli/Hema, 

 Teleas and Ophioneurus) , the larvae of which live in the eggs 

 us well as the larvae of other insects, pass through a series of 

 remarkable changes, heretofore unsuspected, before assuming 

 the final and more normal larval state. lie compares these 



Fig. i ;.>_>. 



Development of 1'latygaster. 



changes to the hyper-metamorphosis of Meloe and Sitaris (; 

 p. 478). The ovary of Platyyaster differs from that of other 

 insects in that it is a closed tube or sac. Hence it follows 



(703) 



