DIPTERA— Continued. 



60 



CHEYSOTOXUM CHRYSOTOXUM 



fasciolatuin flavifrons 



Deg. Macq. 



Psarus. 



PSARTJS 



quadrifasciatus 

 Say. 



Kmn.ni- EUMEBUS BUMEBUS 



porcus 

 Walk. 



privernus 

 Walk. 



Syrian SYRITTA SYRITTA 



pipiens proxima 



Macq. Say. 



Xylota. XYLOTA XYLOTA 

 badia Baton 



Walk. Walk. 



XYLOTA XYLOTA 



communis flavifrons 



Walk. Walk. 



XYLOTA XYLOTA Ulilesia. MILESIA MILESIA 



haematodes Libo excentrica iscbiaca 



Fabr. Walk. Harris. Harris. 



Sphserophoria. SPHiEEO PHOBIA 

 cybndrica 

 Say. 



Chrysogaster. 



CHRYSOGASTER 

 pectipennis 

 Lin. 



Syrphus. 



SYRPHUS 



adolescens 

 Walk. 



SYRPHUS 



Aesvctes 

 Walk. 



SYRPHUS 

 Agnon 

 Walk. 



SYRPHUS 

 Alcidice 

 Walk. 



SYRPHUS 



americanus 



Wied. 



IVIcsojgrapta. 



MESOGRAPTA 

 sp 



MESOGRAPTA 

 sp 



MESOGRAPTA 

 arcucinctus 

 Walk. 



MESOGRAPTA 

 cylindricus 

 Say. 



MESOGRAPTA MESOGRAPTA 

 diversipes emarginatus 



Macq. Say. 



MESOGRAPTA MESOGRAPTA MESOGRAPTA MESOGRAPTA 

 geniculates granditarsa guttatus hieroglypbicus 



Macq. Forster. Meig. Meig. 



MESOGBAPTA MESOGBAPTA MESOGBAPTA MESOGEAPTA MESOGBAPTA MESOGEAPTA 

 lapponicus latrans mentbastri Naso obliquus oestriformis 



Zett. Walk. Lin. Walk. Say. Walk. 



MESOGBAPTA MESOGEAPTA MESOGBAPTA MESOGBAPTA MESOGEAPTA MESOGEAPTA 

 ribesii sexquadratus strigatus topiarius umbellatarum vittatifrons 



Fab. Walk. Stager. Meig. Fab. Harris. 



Sericomyia. 



SEEICOMYIA 



Alia 



Walk. 



SEEICOMYIA 

 lappona 

 Lin. 



SEEICOMYIA 

 limbipennis 

 Macq. 



SEEICOMYIA 

 militaris 

 Walk. 



SEEICOMYIA 



sexfasciata 

 Walk. 



SEEICOMYIA 

 tuberculata 

 Harris. 



Tropidia. 



TROPIDIA 

 quadrata 

 Say. 



Polydoiita. 



POLYDONTA 

 bicolor 

 Macq. 



MEEODON 



Bardus 

 Say. 



MEEODON 

 curvipes 

 Wied. 



MEEODON 

 rnorosus 

 Walk. 



MEEODON 

 tudicornis 

 Harris. 



Spiloniyia. 



SPILOMYIA 

 quadrifasciatus 

 Say. 



SPILOMYIA 

 fusca 



Serv. 



Helophilus. 



HELOPHILUS 

 albiceps 

 Macq. 



HELOPHILUS 

 Anausis 

 Walk. 



HELOPHILUS 

 bilineatus. 

 Curtis. 



HELOPHILUS 

 borealis 

 Stager. 



HELOPHILUS 



fasciatus 

 Walk. 



HELOPHILUS 

 glacialis 

 Lcew. 



HELOPHILUS 

 Greenlandicus 

 O. Fabr. 



HELOPHILUS 



latro 



Walk. 



HELOPHILUS 

 Novae Scotise 

 Macq. 



HELOPHILUS 



similis 

 \Macq. 



HELOPHILUS 



Canadensis 

 Brodie. 



HELOPHILUS 



Yorkii 



Brodie. 



HELOPHILUS 

 posticata 

 Wied. 



HELOPHILUS 

 cimbiciformiB 

 Fall. 



JSristalis. 



EEISTALIS 

 Androclus 

 Walk. 



EEISTALIS 

 Bastardi 

 Macq. 



EEISTALIS 

 cbalepus 

 Walk. 



EEISTALIS 

 compactus 

 Walk. 



EEISTALIS 

 dimidiatus 

 Wied. 



EEISTALIS EEISTALIS EEISTALIS EEISTALIS EEISTALIS 

 diminutus flavipes frater inflexus nebulosus 



Walk. Walk. Walk. Walk. Walk. 



EEISTALIS 

 per vagus 

 Harr. 



EEISTALIS 

 poeticatus 

 Fab. 



EEISTALIS 

 Bronsi 

 West. 



EEISTALIS 

 tenax 

 Linn. 



EEISTALIS 

 semimetallicus 

 Macq. 



EEISTALIS 

 sincerus 

 Harris. 



EEISTALIS 

 transversus 

 Wied. 



Volucella. 



VOLUCELLA 



basalis 



Harris. 



VOLUCELLA 



evecta 

 Walk. 



VOLUCELLA 

 plumata 

 Fab. 



BOUdlOI'ODID!:. 



Psilopus. 



PSILOPUS 

 albicoxa 

 Walk. 



PSILOPUS 

 amatus ; 

 Walk. 



PSILOPUS 

 sipbo 

 Say. 



PSILOPUS 

 nigrifernoratus 

 Walk. 



PSILOPUS Porphyrops. 



scutellatus 

 Harris. 



POEPHYBOPS 



pilosicornis 

 Walk. 



Medctems. 



MEDETEEUS 

 albofloren8 



Walk. 



MEDETEEUS 

 cnrysologus 

 Walk. 



MEDETEEUS 

 glaber 

 Walk. 



Dolichoput*. 



DOLICHOPUS 



adjacens 

 Walk. 



DOLICHOPUS 

 affinis 

 Walk. 



DOLICHOPUS 



ciliatus 

 Walk. 



DOLICHOPUS 



confinis 

 Walk. 



DOLICHOPUS 



discessus 

 Walk. 



DOLICHOPUS 



exclusus 

 Walk. 



DOLICHOPUS 

 lamellipes 

 Walk. 



DOLICHOPUS 

 separatus 

 Walk. 



DOLICHOPUS 

 sequax 

 Walk. 



DOLICHOPUS 

 soccatus 

 Walk. 



DOLICHOPUS 



terminatus 

 Walk. 



COIVOPID^E. 



4Jonopa. 



