GUESTS AND PARASITES OF HALICTUS. 



2/ 



In conclusion we may present the following diagram showing 

 the interrelationships of the most important of the insects we 

 have observed. For Halictns it is indeed a "whirlpool of life" 

 with only too many vortices centered upon its unfortunate self. 



Mutilla 



Myodites 

 Philanthus s 

 Metopia 



/ 

 n 



Hi 

 Mutilla 



Phora 



HALICTUS -*-*s. Stethopathus 

 A K ^~% Ceratopogon 



* f 



Baeocera Solenopsis j|| 



Proctotrypidse 



A f 



y 



Pompilus 

 Sphex 



Spiders 



Chrysis 



Polyxenes < zz Smilia 



Aleyrodes 

 Thysanura 



Sciara 



