﻿XXVlll 



Parasite 



micromorpha 



dyscrita 



stcnomor])lia 



Aganiopsyche 

 thrcMiodes 



Palaeoi)syche 

 melanias 



Host 



Thanatodictya hebc. 

 Aphanophantia cuscuticida. 

 See remarks under H. mclanochronia 

 above. 



Stenocranus, Perkinsiella. and other 

 Delphacid genera, long and short- 

 winged ackdts. 



On a commonplace Agalliine ( ?) fomid 

 on terminal shoots of a Terminalia. 

 Xo examples of t'his hopper seem to 

 have been kept apart. 



SUMMARY OF CONTEXTS OF THIS BL'LLETLX. 



In Parts I and X of this IJulletin the Dryinidae are discussed, 

 their habits and structures being detailed, it is specially shown 

 that those forms which attack Jassids, while often superficially 

 lesembling others parasitic on Delphacids. always differ essen- 

 tially in the structure of the chelae from the latter. Conse- 

 (|uently the same species or rather the same genus does not at- 

 tack both of these indiscriminately. The natiu'e of the larval 

 sac is explained, and a similar sac is shown to exist outside the 

 group in an anomalous insect (j^ossiblv allied to Hinbolcnnis) 

 parasitic on Orthoptera. It may be added that this is also the 

 case with some European P)elytidae. which also form larval sacs 

 on small Jassids. The economic value of Dryinidae is discuss- 

 ed, and the efTect of hyperparasites on their utility. Some si)e- 

 cies reproduce ])arthenogeneticall\-, though males occur. Si.xty- 

 two new species and fifteen new genera are described ; the ma- 

 jority being bred specimens. 



Part II deals with the parasitic Lepido])tera of the l'\imily 

 Epipyropidae. Their habits are given and "the remarkable form 

 of the young larva is described. One species is parthenogenetic. 

 and no male of this is known. Six new s])ecies are described in 

 three new genera, all having been bred from larvae. 



In Part III the Stylopidae are discussed, their haliits, the 

 effect of their attack on their hosts, the frequent occurrence of 

 a parasitic fungus in connection wdth their attack, the structure 



