Key to species of tribe Adelungiini of Iran

[ Achrus prodigiosus (Melichar, 1902) and Platyproctus impressus (Melichar, 1902) are not included due to the lack of information on their male genitalia structure]

1. Aedeagal shaft more or less flattened (Figs 15 a–c, 16 a–b, 17b). Ovipositor with round apex. Subtribe Achrina .......... 2

-. Aedeagal shaft tubular-shaped (Figs 18a, b, 19a, b, 20a, b, 21a, b, 22a, b, 23a, b, 24a, b) Ovipositor with sharp apex. Subtribe Adelungiina ......................................................................................... 4

2. Frontoclypeus parallel-sided (Fig. 4b).Aedeagal shaft strongly flattened laterally (Fig. 17b). Style with inner and outer processes equal in length (Fig. 17d)............................................ Zubara lycii Al-ne’ami et Linnavuori, 1982

-. Frontoclypeus with diverging lateral margins (Figs 1e, 2b, 3b). Aedeagal shaft slightly flattened laterally (Figs 15c, 16b). Style with inner process distinctly longer than outer one (Figs 15e, 16c)............................................... 3

3. Aedeagal shaft serrated laterally, with an apex turned down (Figs 15a–c). Smaller species measuring shorter than 6 mm in length................................................................... Achrus albicosta (Kusnezov, 1929)

-. Aedeagal shaft smooth laterally, with an apex turned up (Figs 16a, b). Larger species measuring 6–9 mm in length................................................................................... Dalus leopardinus (Haupt, 1917)

4. Head with an apical lamellate projection (Figs 5a,b, 6a,b, 7)................................................... 5

-. Head without apical lamellate projection (Figs 8–14)......................................................... 7

5. Apical projection of head distinctly exceeding dorsal curvature of pronotum in lateral view (Figs 5b,7)................. 6

-. Apical projection of head not or slightly exceeding dorsal curvature of pronotum in lateral view (Fig. 6b)....................................................................................... Adelungia primigena Dlabola, 1984

6. Aedeagal shaft with serrated dorsal surface and with a pair of long processes in its proximal half (Fig. 38 in Dlabola, 1984)........................................................................ Adelungia tridigitata Dlabola, 1984

-. Aedeagal shaft with smooth dorsal surface and without processes proximally, but with pair of short lateral projections apically (Figs 18a,b).............................................................. Adelungia elegans Melichar, 1902

7. Forewing basal fourth brown (Fig. 9a). Inner process of style with two subapical teeth one below the other (Fig. 45 in Dlabola, 1960b); Aedeagus with long narrow subapical process (Fig. 46 in Dlabola, 1960b)..... Melicharella basalis Dlabola, 1960

-. Forewing, style and aedeagus not as above................................................................. 8

8. Style with an inner process bifid apically (Fig. 20c). Aedeagal shaft serrated ventrally (Fig. 20b)........................................................................................ Emelyanogramma proxima (Dlabola, 1960)

-. Style with an inner process not bifid. Aedeagal shaft smooth or serrated laterally................................... 9

9. Aedeagal shaft serrated laterally (Figs 21a, 23a)............................................................ 10

-. Aedeagal shaft smooth (Figs 22a, 24a)................................................................... 11

10. Aedeagal shaft of uniform width in ventral view, with row of denticles in its distal ¾ (Fig. 23a).......................................................................... Platyproctus omani (Kameswara Rao et Ramakrishnan, 1983)

-. Aedeagal shaft slightly narrowed distally in ventral view, with denticles laterally in its distral third (Fig. 21a).............................................................................. Platyproctus agraphopteron Bergevin, 1932

11. Face without brown marks (Figs 11b, 13b)................................................................ 12

-. Face richly marked with brown (Fig. 14b)................................... Platyproctus schaeuffelei Dlabola, 1960

12. Aedeagal shaft narrowing gradually from its base towards apex in ventral view (Fig. 24a)................................................................................................ Platyproctus roseovittatus Dlabola, 1960

-. Aedeagal shaft narrowed abruptly after its base in ventral view (Fig. 22a)......... Platyproctus melichari (Kusnezov, 1929)