Eurytoma (Lotfalizadeh et al., 2007) Illiger, 1807

Delvare, G., Escolà, A. Ribes, Stojanova, A. M., Benoit, L., Lecomte, J. & Askew, R. R., 2019, Exploring insect biodiversity: the parasitic Hymenoptera, chiefly Chalcidoidea, associated with seeds of asphodels (Xanthorrhoeaceae), with the description of nine new species belonging to Eurytomidae and Torymidae, Zootaxa 4597 (1), pp. 1-90 : 49

Eurytoma belonging to the robusta species group

The group, here considered in its restricted sense ( Lotfalizadeh et al. 2007), can be diagnosed as follows: gena margined posteriorly by raised carina ( Figs 22C , 25D ); back of head with raised postgenal lamina visible even in lateral view and with ventral postgenal depression ( Fig. 22C ); lower face with radiating carinae reaching up to the antennal toruli, interantennal space not projecting ( Figs 22A , 25A ), ventral belt of prepectus with sharp median tooth ( Figs 22D , 24 ); mesepisternum with completely delimited epicnemium and ventral shelf ( Fig. 24 ); propodeum with wide mesal depression with irregular sculpture ( Fig. 22E ); procoxa with oblique depression on anterior side not delimited laterally by carina ( Fig. 22F ); metacoxa basidorsally bare ( Fig. 24 ); gaster subpetiolate with petiole bearing two small anterolateral teeth and a mediodorsal tooth ( Fig. 24 ).

The pair of Eurytoma species associated with asphodels may be separated from the remaining species belonging to the robusta group especially by the aspect of the notauli. The group may be split in two sets, also according to the habitus of the notauli. In the first set, to which belongs E. strigifrons Thomson, 1876 , the notauli are narrow but distinctly impressed with a smooth bottom and step-like margins; in the second set, which especially includes E. robusta Mayr, 1878 and E. inulae Domenichini, 2002 , the notauli are conversely shallow, obliterated by the sculpture of the mesonotum, and with poorly defined lateral margins. In the two Eurytoma associated with asphodels, the notauli show another state: they are also well impressed but partly obliterated by the sculpture of the mesonotum and with blunt lateral margins ( Fig. 25D ).

Figures

FIGURES 22A–G. Eurytoma asphodeli. A–F, ♀. G, ♂. A, head in frontal view. B, same in posterior view. C, same in anterolateral view. D, mesopleuron in anterolateral view. E, propodeum. F, procoxa in anterior view. G, antenna. Abbreviations. epm, epicnemium; epmc, epicnemial carina; epst2-vf, ventral shelf of mesepisternum; pgl, postgenal lamina; ppt-mvt, medioventral tooth of prepectal belt. A, B & C, ex Asphodelus sp., Şirinköy village, Gökçe Ada Island, Aegean Sea, Turkey. D, on collected on spike of A. cerasiferus, Lapanouse-de-Cernon, Aveyron, France. E & G, ex A. albus delphinensis from Vielha, Lleida, Spain. F, ex A. cerasiferus, Aitona, Lleida, Spain.

FIGURE 24. Eurytoma genale Askew & Stojanova sp. n., ♀ ex Asphodeline lutea, Vizzini, Monte Iblei, Sicilia, Italy.

FIGURES 25A–G. A–E, Eurytoma genale. A–D, ♀; E, ♂. A, head in frontal view. B, same in lateral view. C, antenna. D, pro- and mesonotum. E, antenna. F–G. Eurytoma pistaciae Rondani, ♀. F, antenna. G, hind leg and metasoma. All specimens from Vizzini, Monte Iblei, Sicilia, Italy; E. genale ex A. lutea, E. pistaciae from A. ramosus.