Key to species of Platycranus

1. Labium not reaching or slightly surpassing fore coxa (subgenus Platycranus)...................................... 2

- Labium surpassing or at least reaching middle coxa (subgenus Genistocapsus)..................................... 5

2. Head strongly flattened, dark brown to black (Figs. 34–36); genital capsule without field of spinules ventroapically (Fig. 74); right paramere without extension at base (Figs. 104–109). Northern Mediterranean, from Spain to Syria and Israel ... P. erberi

- Head uniformly pale (Figs. 37–45); genital capsule with field of spinules ventroapically (Figs. 70–71, 75–79); right paramere with extension at base (Figs. 110–121)..................................................................... 3

3. Body length 5.8–7.0 mm; second antennal segment 2.1–2.4 mm. Sicilia................................... P. hartigi

- Body length 4.8–5.6 mm; second antennal segment 1.4–1.9 mm ................................................. 4

4. Head 1.6 × as wide as length of first antennal segment in male, 1.4 × in female. Canary Islands............... P. lindbergi

- Head 1.8–2.4 × as wide as length of first antennal segment in male, 1.7–2.2 × in female. South Mediterranean, from Morocco to Israel and Jordan ............................................................................. P. pu ton i

5. Head, pronotum (sometimes except lateral margins), scutellum, and inner margin of hemelytron in both sexes or at least in male brown to black, membrane dark brown (Figs. 13, 16–19, 24–25, 26, 30, 46, 48, 51–52, 57)....................... 6

- Dorsum uniformly pale greenish yellow in both sexes or at least hemelytron pale (Figs. 12, 14–15, 20–23, 27–29, 30–31, 47, 49, 53–56).......................................................................................... 11

6. First and second antennal segments pale (Fig. 13)........................................................... 7

- At least first antennal segment brown to black (Figs. 16–19, 24–25, 26, 30, 46, 48, 51–52, 57)....................... 8

7. First antennal segment 0.25–0.3 mm; female always uniformly pale. Western Europe.................... P. bicolor (part)

- First antennal segment 0.4–0.5 mm; both sexes with clear dark pattern on dorsum. Spain ....................... P. jordii

8. Both first and second antennal segments dark brown (Figs. 26, 30, 48). Northwestern Mediterranean...................................................................................................... P. metriorrhynchus (part)

- First antennal segment dark brown to black, second segment contrastingly yellow (Figs. 16–19, 24–25, 46, 51–52, 57)..... 9

9. First antennal segment thick, with long, intensively black stiff setae (Fig. 46). Cyprus ........................ P. genistae

- First antennal segment of normal width, with brown or black simple setae and silvery scale-like setae (Figs. 51–52, 57)... 10

10. Body length 2.8–3.5. Greece ..................................................................... P. wagneri

- Body length 3.7–4.4. Islands of Tyrrhenian Sea, Tunisia ................................................. P. pictus

11. Head 1.5–2.2 × as wide as length of first antennal segment in male, 1.9–2.4 × in female............................ 12

- Head 2.4–3.3 × as wide as length of first antennal segment in male, 2.6–3.7 × in female............................. 13

12. Head 1.5 × as wide as length of first antennal segment. Greece ........................................... P. a l k e s ti s

- Head 1.9–2.4 × as wide as length of first antennal segment. Northwestern Mediterranean...................................................................................................... P. metriorrhynchus (part), P. c o n c i i

13. Simple setae on head and pronotum black; pulvillus relatively short, not reaching midpoint of claw (Fig. 196). Western Europe. P. bic olor (part)

- Simple setae on head and pronotum silvery to pale brown; pulvillus relatively long and reaching midpoint of claw (Figs. 199– 200). South Europe, Turkey ...................................................................... P. remanei