PLATE X. 

 PARASITIC HYMENOPTERA. 



1. Pezoinacbus zonatus and nests of Spider. 



2. Pezoniaclius fasciatus. 



3. Trogus atropos. 



4. Rhyssa peisuasoria. 



5. Pkhyssa depositing eggs. 



6. Chelonus oculator (rather magnified). 

 Caterpillar of Death's Head Moth. In Middle. 



Plants : — 



Willow. Above. 



Dog-grass ( Cynosurus). In Middle, with mud-nests of Spider. 



Wood Sorrel {Oxalis acetosella). Below. 



