LIST OF TEXT ILLUSTRATIONS 



3- 

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 6. 



7- 



Fig. 

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Fig. 

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Fig- 

 Fig. 20. 

 Fig. 21. 



Fig. 22. 



Fig. 2^. 

 Fig. 24. 

 Fig. 25. 

 Fig. 26. 

 Fig. 27. 

 Fig. 28. 

 Fig. 29. 

 Fig. 30. 

 Fig. 32. 

 Fig- 33- 



Head and tongue of worker bee 



Heads of queen and drone 



Queen cells and worker brood of honey bee 



Queen of the common honey bee 



Legs of different bees 



Legs of different bees 



Sphecius speciosus carrying Cicada to its burrow 



Adult Cicada bearing eggs of Sphecius 



Larva of digger wasp in Cicada burrow 



Same, spinning its cocoon 



Immature stages of the digger wasp 



Cocoon of same 



Polistes pallipes 



Polistes rubiginosus . 



Odynerus flavipes and its nest in a spool 



Tiphia inomata 



Chrysis sp. 



Laelius trogodermatis 



Goniozus sp. parasitic on larvae of codling moth 



Solenopsis xyloni 



Crematogaster lineolata 



Monomorium minutum 



Tetramorium caespitum 



Ants at play 



Pelecinus polyturator 



Baeus americanus 



Cynips spongifica 



Diastrophus nebulosus 



Pachyneuron micans 



Chalcis ovata . 



Larvae of Euplectrus comstockii 



Pupae of same 



PACK 



4 



5 



7 



7 

 8 



9 



23 

 23 

 24 

 24 

 24 



25 

 25 

 26 



3« 

 31 

 3' 

 55 

 3(> 



n 

 38 

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 46 

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 53 

 ^4 

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 58 

 58 



