BY THE INTRODUCTION OF PARASITES. 369 
skin, which may be moulted intact; (3) moulting of the eggs with the skin ; 
(4) failure of the larva to penetrate. 
A full account is given of the methods adopted for importing and handling the 
enormous numbers of eggs and caterpillars of the two moths which were needed 
in order to rear a good stock of parasites. Hach species of parasite is then dis- 
cussed in detail, and this section contains a mass of interesting and useful 
information respecting the individual species studied, 
The following tabulated statement will give some idea as to the measure of 
success which has attended these attempts at colonisation. 
PARASITES OF THE Gipsy Moru. 
Egg Parasites (Hymenoptera). 
Anastatus bifusciatus, Fonuse. Apparently well established. 
. f Kstablishment very doubtful on account 
Schedius kuvanae, How. 1 Ansan iit; 
of climatic conditions. 
Larval Parasites (Hymenoptera). | 
Pipdneelew puteipesy Elal, f Establishment doubtful on account of 
: LU lack of proper alternate hosts. 
Larval Parasites (Tachinidae). 
Compsilura concinnata, Meig. Apparently established. 
Blepharipa scutellata, R. D. Establishment confidently expected. 
Carcelia gnava, Meig. 
Zyyobothria gilva, Hartig. 2 y 
Tricholyga Yrandis, Tee Establishment hoped for. 
Parasetigena segregata, Rond. 
Tachina larvarum, L. 
» japonica, Towns. Establishment doubtful. 
Crossocosmia spp. 
Pupal Parasites (Hymenoptera). 
Morhdentoiers daveus Walle { Firmly established and dispersing at a 
\ very rapid rate. 
Pimpla examinator, F. } 
» instigator, F. ; 
Chalets ohacurata, Wall: Establishment doubtful. 
» flavipes, Panz. 
Predaceous Beetles. 
Calusoma sycophanta, L. f Firmly established ; increasing and 
U— dispersing rapidly. 
PARASITES OF THE Brown-TAIL Mora. 
Egg Parasites (Hymenoptera). 
Trichogramma. spp. Establishment probable ; not 
Telenomus phulaenarum, Nees. important. 
