Order XU.—DlPTEKA—(conlmuec/.). 

 Odontorayia, 347 

 Ephippium, J'47 

 Oxycera, 348 

 Nemotelus, 348 

 Chrysochlora, 348 

 Sargus, 348 

 Vappo, 34y 



Fam.5. — Athericera, 349 

 Tribe 1. — SyrphidcB, 350 

 Syrphus, 350 



Volucella, 35 I 

 Sericomyia, 351 

 Eristalis, 351 

 Mallota, 352 

 Helophilus, 352 

 Syrphus proper, 35 2 

 Chrysogaster, 353 

 Baccha, 353 

 Paragus, 353 

 Sphecomyia, 353 

 Psarus, 353 

 Chrysotoxum, 354 

 Ceria, 354 

 Callicera, 354 

 Ceratophyta, 354 

 Apliritis, 354 

 Merodon, 355 

 Ascia, 355 

 Sphegina, 355 

 Eumerus, 355 

 Milesia, 355 

 Pipiza, 356 

 Brachyopa, 356 

 Rhingia, 356 

 Pelecocera, 356 



Tribe •2.— CEstrides,356 

 CEstrus, 357 



Cuterebra, 358 

 Cepbenemyia. 358 

 OEdemagena, 358 

 Hypoderma,358 

 Cephaleinyia, 358 

 CEstrus proper, 358 

 Gastrus, 358 



Tribe Z.— Conopsarice, 359 

 Conops, 359 



Systropus, 360 



