18 



ME. F. WALKEE ON THE DIPTEEA 



Syritta 



illucida 



Volucella 



trifasciata . . . 



decorata 



Axona 



volucelloides . 

 Baryterocera 



inclusa 



gibbula 



Citibaena 



aurata 



Syrphus 



ericetoriim . . . 



segrotus 



consequens . . . 



duplex 



triligatus 



alternans 



divertens 



cyathifer 



Azpeytia 



scutellaris . . . 

 Couops 



rufifrons 



metaxantha . . . 

 Echinomyia 



brevipennis . . . 



sarcopliagoides 

 Tachina 



Ophirica 



analis 



discifera 



Nemorsea 



amplificans . . . 



tenebrosa 



postulans 



Saralba 



ocypteroides . 

 Hamaxia , 



incongrua . . . 

 Masicera 



vicaria .,.,., 

 tomentosa . , 



Moi'io , 



hoFrens ,,..., 

 sarcophagata 

 dotata .,.,.. 

 immersa . . . . 

 Mysolana , , . , 

 manifesta . . . , 

 notabilis . , . . 

 prominens . . 

 tentata 



W OQ 





cs;m 



oto 



