|
1 Frons just below midocellus with a transverse swelling extending eye to eye (interrupted medially) and joining a linear swelling along inner orbit to form an M or inverted U; midocellus in a broad depression
2
1’ Frons variable but without swellings as above; midocellus not in a broad depression
3
2 Female: last tarsomere evenly arcuate in lateral view, sides diverging most of way to apex (dorsal view), ventral surface without hairmat; claw not prehensile and without an inner tooth; outer surface of foretibia with a row of three or more stout bristles
Male: propodeal side densely punctate, shiny; apical half of outer surface of foretibia usually with one or more erect bristles; mandible without inner teeth
Larra
2’ Female: last tarsomere angled in lateral view, sides parallel on apical half; ventral surface usually with dense hairmat; claw prehensile (often folded against last tarsomere); outer surface of foretibia at most with one preapical bristle
Male: propodeal side dull and impunctate; outer surface of foretibia without bristles; mandible often with one or two inner teeth Liris
3 Ocellar scars very long, golf club or comma shaped, long axes of scars subparallel, not exceeding an angle of 70 degrees; pygidial plate present in both sexes and usually clothed with dense setae
3’ Ocellar scars oval or oblong, or if elongate then long axes of scars forming and angle of 80 degrees or more; pygidial plate usually present in females but bare or sparsely setose, male usually without a pygidial plate
4
4 Female foretarsomere II with three or more rake spines which are long and fine; male sternum VIII emarginated apically (bispinose)
Tachysphex
4’ Female foretarsomere II with no more than two rake spines which are usually bladelike or thornlike; male sternum VIII rounded apically
5
5 Subalar fossa bordered below by a sharp longitudinal carina; least interocular distance greater than combined length of pedicel and flagellomere I
Larropsis
5’ Subalar fossa not bordered below by a sharp carina; least interocular distance usually equal to or less than combined length of pedicel and flagellomere I
Subgenus Ancistromma of Larropsis Species L. distincta
|
