Key to species of Platygaster from Iran

1. Mesoscutum with notauli .................................................................................................................. 2

– Mesoscutum without notauli ............................................................................................................. 9

2. Notauli complete or almost complete ............................................................................................... 3

– Notauli incomplete ............................................................................................................................ 7

3. T2 hardly striate ................................................................................................................................ 4

– T2 striate ........................................................................................................................................... 5

4. Occiput with oblique striation, medially almost longitudinal ............................................................ ................................................................................. Platygaster lotfalizadehi Buhl & Asadi sp. nov.

– Occiput without oblique striation ................................................ Platygaster breviscapa Buhl, 2009

5. Sternite 2 with a hump between hind coxae .................... Platygaster cf. gladiator Zetterstedt, 1838

– Sternite 2 without a hump between hind coxae ................................................................................ 6

6. Frons smooth; sternite 1 and base of sternite 2 without dense greyish pubescence ........................... .................................................................................................... Platygaster cf. dryope Walker, 1836

– Frons except upper lateral parts strongly transversely striate; first sternite and base of second sternite with dense greyish pubescence ............................................... Platygaster cf. rugosiceps Buhl, 1994

7. Notauli very short; T2 without striae ................................................ Platygaster nisus Walker, 1836

– Notauli indicated in about posterior half; T2 with striation .............................................................. 8

8. T1 with about ten rather uniform, fine longitudinal carinae, with a transverse depression around midlength. T2 striate to 0.5 of length, medially slightly shorter ............................................................... ............................................................................... Platygaster azarbaijanica Buhl & Asadi sp. nov.

– T1 with about six somewhat uneven, rather weak longitudinal carinae and a few even weaker additional ones. T2 weakly striate from basal foveae to 0.65 length of tergite, medially with four short striae to 0.15 of length ..................................... Platygaster karimpouri Asadi & Buhl sp. nov.

9. Base of T2 covered with dense, silvery setae ................................... Platygaster harteni Buhl, 2007

– Base of T2 without dense setae ....................................................................................................... 10

10. T2 striate in basal fovea to hardly one-third of length ...................... Platygaster arabica Buhl, 2007

– T2 very faintly striate in basal foveae to 0.4–0.5 of length ............ Platygaster cf. papei Buhl, 2007