Idiotypa

Chemyreva, Vasilisa G., Notton, David G. & Zaldívar-Riverón, Alejandro, 2021, Revision of Palaearctic Idiotypa (Hymenoptera, Diapriidae, Diapriinae, Spilomicrini), Zootaxa 4966 (2), pp. 127-144 : 130

Key to described Palaearctic species of Idiotypa , except Japan

1. Females and males wingless, tegula absent ( Figs 18 , 26 ). Malar sulcus absent ( Figs 19 , 25 ). Ocelli absent ( Figs 16 , 28 ). Notauli absent ( Figs 16 , 28 ). Scutellum reduced, visible as narrow transverse sclerite with only scutoscutellar sulcus between it and mesoscutum ( Figs 16 , 28 )................................................................... I. nitens (Szabó)

- Females and males alate, tegula developed ( Figs 1–4 ). Malar sulcus complete and deep. Ocelli present. Notauli complete ( Fig. 11 ). Scutellum fully developed with three or more anterior scutellar pits and transscutal articulation between scutellum and mesoscutum ( Fig. 11 ).................................................................................. 2

2. Mesosoma and head dark brown ( Fig.1 ). Mesepimeral sulcus represented by a row of small deep pits, always present medially ( Fig. 2 , see arrow). Clava of female black, abrupt, five-segmented ( Fig. 5 ). A9 wide and equal to A10. Ventrally A8 flattened, with extensive MGS brush ( Fig. 5 ). Male A4 with keel reaching base of segment; A3 shorter than A4 ( Figs 7, 9 )............................................................................................. I. maritima (Haliday)

- Mesosoma reddish orange to yellow, head much darker, almost black ( Fig. 3 ). Mesepimeral sulcus represented by a row of shallow pits, these are usually missing or at least weak medially ( Fig. 4 , see arrow). Clava of female brown, non-abrupt ( Fig. 6 ). A9 narrowed proximally, narrower than A10. Ventrally A8 not flattened, with small MGS brush to without it ( Fig. 6 ). Male A4 with keel not reaching base of segment; A3 longer than A4 or A3=A4 ( Figs 8, 10 ).................. I. mariae Gregor

Figures

FIGURES 16‒21. Idiotypa nitens (Szabó, 1961), female: 16) head, mesosoma and base of metasoma in dorsal view (scale bar = 0.2 mm); 17) head, mesosoma and base of metasoma in lateral view; 18) S2 (scale bar = 0.2 mm); 19) face (scale bar = 0.2 mm); 20) whole insect in lateral view (scale bar = 0.5 mm); 21) antenna, ventral view (scale bar = 0.2 mm).

FIGURES 24‒28. Idiotypa nitens (Szabó, 1961), male (holotype): 24) whole insect in lateral view (scale bar = 0.5 mm); 25) face (scale bar = 0.2 mm); 26) body in lateral view (scale bar = 0.2 mm); 27) antenna (scale bar = 0.2 mm); 28) body in dorsal view (scale bar = 0.2 mm).

FIGURES 1‒4. Idiotypa maritima (Haliday, 1833) (1, 2) and I. mariae Gregor, 1939 (3, 4). 1, 3) lateral habitus (scale bar = 0.5 mm); 2, 4) mesosoma in lateral view (scale bar = 0.2 mm).

FIGURE 11–15. Idiotypa maritima (Haliday, 1833) (11–13) and I. nitens (Szabó, 1961) (14–15), females: 11, 14) whole insect, in dorsal view (scale bar = 0.5 mm); 12) petiole and base of S2 in ventral view; 13, 15) petiole and base of T2 in dorsal view.

FIGURES 5‒10. Idiotypa maritima (Haliday, 1833) (5, 7, 9) and I. mariae Gregor, 1939 (6, 8, 10). 5, 6) antenna of female in ventral view (scale bar = 0.5 mm); 7, 8) A2‒A6 of male in dorsal view (scale bar = 0.2 mm); 9, 10) A2‒A6 of male in lateral view (scale bar = 0.2 mm).