Key. The following modifications to the key of Hernández-Ortiz (1999) are provided to include H. cundiboyacensis:

1. Abdominal tergites entirely yellow or at most with lateral blackish spots on tergite 5 in male or 6 in female; oviscape yellow or dark brown.......................................................................................... 2

- At least abdominal tergites 3–5 entirely dark brown; oviscape dark brown;...................................... 1A

1A. All tergites, including syntergite 1+2, entirely brownish black; proximal hyaline mark in cell r 1 reaching vein R4+5; costal cell with dark marking occupying nearly of anterior mid length (Figure 1. E page 634); aculeus tip as in (Figure 2. E–F page 636) Venezuela .................................................................. H. nigriventris Hernández-Ortiz

- Syntergite 1+2 yellow with two brownish spots laterally, other tergites entirely dark brown (Figs. 9–10); proximal hyaline mark in cell r 1 projecting beyond vein R4+5 into br cell; costal cell entirely pale yellow except a narrow brown area on anterior margin (Fig. 7); aculeus tip as in (Fig. 15) Colombia ....................... H. cundiboyacensis Rodriguez, new species