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Tribe Pemphredonini |
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1 Forewing with two recurrent veins and three discoidal cells; stigma small or moderate in size 2
1’ Forewing with one recurrent vein and two discoidal cells, rarely one; stigma large
3
2 Episternal sulcus well developed, extending from subalar fossa to hypersternaulus and beyond; hypersternaulus horizontal; hindtibia without spine series on posterior margin
Passaloecus
2’ Episternal sulcus incomplete, not evident between subalar fossa and hypersternaulus; hypersternaulus rising obliquely posterad; hinditibia with a series of spines posteriorly
Pemphredon
Cemonus
3 Gaster in dorsal view with petiole much longer than wide Stigmus
3’ Gaster in dorsal view with petiole indistinct or no longer than wide 4
4 With no more than one submarginal cell Xysma 4’ With two closed submarginal cells Spilomena
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