106 Dr. T. A. Chapman on 



moth and demolishing it when caught, yet except this 1 

 found no larva suffered any attack whatever at Hyeres. 

 At Taormina, however, X. comius was not met with as 

 attacking If. hyerana, though it was not absent from the 

 locality, being found living on the larvae of Acroelita conse- 

 quana in precisely the same way as it does at Hyeres on 

 that of H. hyerana. 



This immunity from one attack, however, was well 

 compensated by the attack of two Tachinid flies and of 

 four Hymenopterous parasites. Mr. Wainwright tells me 

 the commonest Dipteron is Gymnopareia crassicornis, ap- 

 parently a widely-spread and common species. Wiiy does 

 this fly not attack it at Hyeres, since no doubt it occurs 

 there as over the rest of Europe, attacking as it does 

 a great variety of the smaller Lepidoptera ? A solitary 

 specimen was also bred of a comparatively large Tachinid 

 named as a var. of G. crassicornis, so large that one can only 

 just suppose its host to afford it food enough, if it be one 

 of the largest and fattest specimens. 



The commonest Hymenopteron was a Microgaster near 

 suhconip)lchis, Nees., which spun a small white cocoon, each 

 larva affording one parasite. This is very similar to (identical 

 with ?) one TrMru- unicolorana at Cannes and Hyeres, 

 where, however, it never touches lii/crana. A number of 

 Bracon varieyatus were also bred, a species of Ayathis and 

 a Pterwncdns (names kindly supplied by Claude Morley, 



We must, I think, explain this remarkable difference in 

 the parasites by the differences in the habits of the larva of 

 H. hyerana at the two localities, and not by the presence 

 or absence of the parasites or by any differences in their 

 habits. 



The moths selected for figuring (figs. 1 and 2) are a pair 

 of the very pale form from Capri (var. pallens), to which the 

 specimen from Paestum is very close, and to which a few 

 odd specimens from Hyeres make some approach. Figs. 

 3 and 4 are a pair selected from the Taormina specimens as 

 fairly representing the mass of that race. It may also be 

 taken as practically indistinguishable from the typical pale 

 race at Hyeres. Figs. 5 and 6 are a pair of the dark 

 (melanic) form from Hyeres (maryinata,'W i&m.') (bred 1904). 

 Figs. 7 and 8 are two forms of a variety occurring 

 amongst the Taormina specimens. Whilst they are the 

 nearest approach to a dark form that that race afforded, it 



