Polybiomyia

Polybiomyia
	Polybiomyia engelhardti missing antennae
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Family:	Syrphidae
Tribe:	Cerioidini
Genus:	Polybiomyia; Shannon, 1925

Polybiomyia is a genus of hoverfly.^[1]

Genus	frontal prominence	abdominal segment 1	abdominal segment two constriction	abdominal segment 2 length	paraface	other
Ceriana	as long as scape	same size as segment 2	not constricted	wider than long	very short paraface	looping in third vein R4+5 with spur branch projecting into cell r4+5
Monoceromyia	as long as scape	wider than segment 2	strongly constricted	longer than wide		loop of vein R4+5 without Spur branch
Polybiomyia	absent or very short	shorter than segment 2	strongly constricted	longer than wide		vein R4+5 not looping
Primocerioides	shorter than scape		not constricted	wider than long	long paraface and large anterior tentorial pit	eyes and face pilose, vein R4+5 straight
Sphiximorpha	shorter than scape	wider than 2	slightly constricted anteriomedially	longer than wide	long paraface and large or deep anterior tentorial pit.	Facial tubercle weak to nearly absent. vein R4+5 not looping.

References

Polybiomyia

Polybiomyia engelhardti missing antennae
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Family:	Syrphidae
Tribe:	Cerioidini
Genus:	Polybiomyia Shannon, 1925