Key to the third-instar females of Kermesidae species of Israel

1. Venter with a submarginal band of tubular ducts 1–2 ducts wide............................. N. balachowskii (Fig. 42)

- Venter with a submarginal band of tubular ducts 5–10 ducts wide............................................... 2

2. Antennae 6 segmented; legs fully-developed; sclerotized anal lobes present....................................... 3

- Antennae less than 6 segmented; legs reduced to 3 or fewer segments; sclerotized anal lobes absent.................. 5

3. Dorsum without seta-pore clusters; each anal lobe with more than 3 setae........................... K. greeni (Fig. 10)

- Dorsum with seta-pore clusters; each anal lobe with fewer than 3 setae........................................... 4

4. Spatulate ventral setae present anterior to tentorium; dorsum with hair-like setae................... K. spatulatus (Fig. 33)

- Spatulate ventral setae absent anterior to tentorium; dorsum without hair-like setae.................. K. nahalali (Fig. 26)

5. Legs 1 segmented without claw.......................................................... K. echinatus (Fig. 2)

- Legs 3 segmented with distinct claw.................................................... K. hermonensis (Fig. 18)