Subfamily diagnostics
(HYMENOPTERA: SPHECIDAE)

CRABRONINAE		Fore-wing with single submarginal cell
	Scutellum with  scales
Tribe Oxybelini
	Square-faced
Tribe Crabronini
		Eyes notched
LARRINAE Tribe Trypoxylonini

 
 
 

SPHECINAE		Middle tibiae with two spurs; abdomen elongate petiolate
	Antennae inserted above middle of face
Tribe Sphecini
	Recurrent veins to  2nd and 3rd submarginal  cells
Tribe Sceliphronini
	Both recurrent veins to 2nd submarginal  cell
Tribe Ammophilini

 
 

	Middle tibiae with two spurs, eyes converging dorsally
ASTATINAE

 
 

NYSSONINAE		With the exception of the first two Tribes, The Nyssoninae have the mesonotum extending over the tegula, and middle tibiae have two spurs
	Labrum large  and triangular, middle tibiae with  single spur
Tribe Bembicini
	Hind femur with an apical tooth, middle tibiae with  single spur
Tribe Alyssonini
	Abdominal petiole  with enlarged node, recurrent veins  to first and third submarginal cells
Tribe Mellinini
	Second submarginal  cell quadrate, both recurrent veins to  2nd submarginal cell
Tribe Gorytini
	Second submarginal  cell triangular;  Propodeum spined.
Tribe Nyssonini

 
 

		Middle tibiae with single spur, abdomen apetiolate, gradually expanded
LARRINAE
	Lateral ocelli deformed, tear-shaped
Tribe Tachytini
	Third submarginal cell boot shaped
Tribe Larrini
	Ocelli normal
Tribe Miscophini

 
 

PHILANTHINAE		second abdominal segment constricted
	Eyes notched; second submarginal cell quadrate
Tribe Philanthini
	Inner eye margin  simple; second submarginal cell  triangular
Tribe Cercerini

 
 

PEMPHREDONINAE		Middle tibiae with single spur, abdomen petiolate
	Antennae arise from middle  of face; 3 submarginal  cells.
Tribe Pemphredonini
	Antennae arise low on face; only 1-2 submarginal  cells.
Tribe Psenini

 

(Further information on this family) (Photo Album)