Key to the adult males of Kermesidae species in Israel

1. Body 0.8–1.1 mm long; 0.2–0.3 mm wide at metathorax.................................... N. balachowskii (Fig.45)

- Body 1.5–2.0 mm long, 0.4–0.5 mm wide at metathorax.......................................................2

2. Metasternal setae present............................................................................... 3

- Metasternal setae absent................................................................................ 5

3. Metasternum with more than 25 setae; with two dorsopleural setae on abdominal segments II–VII..... K. nahalali (Fig. 29)

- Metasternum with 20–25 setae; with more than two dorsopleural setae on abdominal segments II– VII.................. 4

4. Eight dorsopleural setae present on abdominal segment I..................................... K. spatulatus (Fig. 37)

- Four dorsopleural setae present on abdominal segment I......................................... K. greeni (Fig. 13)

5. Dorsum of metathorax with a group of three setae on each side.............................. K. hermonensis (Fig. 21)

- Dorsum of metathorax without a group of three setae on each side............................... K. echinatus (Fig. 5)