Couplet 1.
History
Key to species of New World Stilbops (modified from Townes, 1989) (at the start)
Key to species of New World Stilbops (modified from Townes, 1989) (at the start)
Notes: Useful links for key: general ichneumonid morphology
1. Underside of flagellum yellowish-brown or light brown. T5-9 dark brown to fuscous in both sexes. T2-3 of female mostly to entirely brownish-red, black in male. Female with propodeal carinae complete and strong. Distribution: northeastern North America.
1’. Flagellum uniformly dark brown. T6-9 brownish-red in female, black in male. T2-3 black in both sexes. Female with propodeal carina weak; posterior transverse carina absent and longitudinal carinae apically absent. Distribution: southern Mexico (Oaxaca).
