INSECTA 



501 



or elbowed. Though most of these small wasps are parasites, e.g. of 

 lepidopterous and dipterous larvae, and of homopterous nymphs, a 



Fig, 346. Types of Hymenoptera. A, Cryptus ohscuriis (Ichneumonoidea) ; 

 B, Bruchophagus funebris (Chalcididae), after Howard. C, Polistes aurifer 

 (Vespidae), after Essig. D, Pamphilus sp. (Tenthredinidae), original. 

 E, Monomorium minimum (Formicidae), after Essig. 



few feed as larvae on plant tissues such as Harmolita which produces 

 galls on grasses. 



