Emblethis, Fieber, 1860

Lis, Barbara, 2011, Description of the unknown fifth instar of Emblethis duplicatus Seidenstücker, 1963 (Hemiptera: Heteroptera: Rhyparochromidae), with a key to 5 instar nymphs of Emblethis Fieber, 1860, Zootaxa 2771 (1), pp. 62-64 : 64

Key to known fifth nymphs of Emblethis (modified from Putshkov [1969] and Péricart [1999])

1. First abdominal scent gland opening (between terga IV–V) slightly shorter than second (between terga V–VI) ..... 2.

-. First abdominal scent gland opening (between terga IV–V) twice as short than second (between terga V–VI) ........... ................................................................................................................................................... E. minutus Kiritshenko

2. Lateral margins of pronotum with clearly visible setae slightly longer than the half diameter of antennal segments .. .......................................................................................................................................................... E. ciliatus Horváth

-. Setae on lateral margins of pronotum absent or very short, hardly visible ................................................................. 3.

3. First segment of metatarsus at most 1.5 times longer than second segment .............................................................. 4.

-. First segment of metatarsus almost 2 (or more than 2) times longer than second segment ....................................... 5.

4. Head and pronotum yellowish brown with darker bands ........................................................... E. denticollis Horváth

-. Posterior part of head and middle part of pronotum entirely black .................................................. E. griseus (Wolff)

5. First segment of metatarsus almost 2 times longer than second segment ................................. E. verbasci (Fabricius)

- First segment of metatarsus more than 2.5 times longer than second segment ................. E. duplicatus Seidenstücker