Alloxysta brevis ( Thomson, 1862 )

Ferrer-Suay, Mar, Selfa, Jesús, Tomanović, Željko, Janković, Marina, Kos, Katarina, Rakhshani, Ehsan & Pujade-Villar, Juli, 2013, Revision of Alloxysta from the north-western Balkan Peninsula with description of two new species (Hymenoptera: Figitidae: Charipinae), Acta Entomologica Musei Nationalis Pragae 53 (1), pp. 347-368 : 351

* Alloxysta brevis ( Thomson, 1862)

Material examined (22 JJ 36♀♀). SERBIA: Aphidius matricariae – Semiaphis dauci (Fabricius, 1775) on Daucus carota, Slanci-Brdo , 8.v.2007: 5 ♀♀; Lysiphlebus sp. – Aphis craccivora on Medicago sativa, Baranda , 7.ix.2011: 1 ♀; Lysiphlebus sp. – Aphis fabae cirsiiacanthoidis Scopoli, 1763 on Cirsium arvense, Padinska Skela , 14.v.2007: 2 ♀♀; Praon necans Makacuer, 1959 – Rhopalosiphum nymphaeae (Linnaeus, 1761) on Typha latifolia, Padinska Skela , 14.v.2007: 13 JJ 6 ♀♀; unknown primary parasitoid – Aphis nasturtii Kaltenbach, 1843 on Rumex crispus, Padinska skela , 8.vi.2007: 1 ♀; unknown primary parasitoid – Aphis fabae cirsiiacanthoidis on Cirsium arvense, Umčari-Donji Kraj , 8.vi.2012: 2 JJ 4 ♀♀; Živkovac-Site 1, 8.vi.2012: 5 JJ 11 ♀♀. SLOVENIA: Aphidius rosae Haliday,1834 – Macrosiphum rosae (Linnaeus, 1758) on Rosa cannina , Nova Gorica, 8.v.2008: 1JJ 4♀♀; Aphidius spp. – Sitobion avenae (Fabricius, 1775) and Rhopalosiphum padi on Zea mays, Slap ob Idrijci, 16.vi.2009: 1 ♀; Praon abjectum (Haliday, 1833) – Rhopalosiphum padi on Zea mays , Koper, 17.vi.2009: 1 J; unknown primary parasitoid – Uroleucon sp. on Cichorium endivia, Brnik , 7.x.2008: 1 ♀. [14 JJ and 26 ♀♀ deposited in UB, 8 JJ and 10 ♀♀ deposited in IZFBUB].

Diagnosis. Alloxysta brevis is easily distinguishable from the other Charipinae species present in the Balkans because it is the only species with closed radial cell that lacks pronotal carinae, F1 shorter than pedicel, and F1–F3 subequal in length.

Short redescription. Head yellowish brown, mesosoma and metasoma dark brown; scape, pedicel, F1–F3 yellow, F4–F11 brown; legs yellowish; veins yellowish brown. Female antennae 13-segmented; F1–F3 smooth and thinner than remaining ones, F4–F11 with rhinaria, club-shaped; F1 shorter than pedicel, F1–F3 subequal in width and length, F3 shorter than F4 ( Fig. 21 ). Male antennae 14-segmented; as in female without any curved flagellomere. Pronotum covered with sparse setae, without carinae ( Fig. 28 ). Propodeum covered with abundant pubescence with two carinae, separated by few setae and forming a plate in the lower two-thirds, sides slightly curved. Forewing longer than body; radial cell closed, 2.1 times as long as wide ( Fig. 12 ).

Distribution. Palaearctic and Neotropical Region. New record for Serbia and Slovenia.

Figures

Figs 15–24. Antenna of Alloxysta species. 15 – A. castanea (Hartig, 1841); 16 – A. macrophadna (Hartig, 1841); 17 – A. mullensis (Cameron, 1883); 18 – A. victrix (Westwood, 1833); 19 – A. arcuata (Kieffer, 1902); 20 – A. fracticornis (Thomson, 1862); 21 – A. brevis (Thomson, 1862); 22 – A. fuscicornis (Hartig, 1841); 23 – A. pleuralis (Cameron, 1879); 24 – A. salicicola Belizin, 1973.

Figs 25–28. Types of propodeum and pronotum in Alloxysta species. 25 – propodeum of A. arcuata (Kieffer, 1902); 26 – propodeum of A. victrix (Westwood, 1833); 27 – pronotum of A. arcuata; 28 – pronotum of A. brevis (Thomson, 1862).

Figs 5–14. Types of radial cell in forewing of Alloxysta species. 5 – A. castanea (Hartig, 1841); 6 – A. macrophadna (Hartig, 1841); 7 – A. pleuralis (Cameron, 1879); 8 – A. mullensis (Cameron, 1883); 9 – A. victrix (Westwood, 1833); 10 – A. fracticornis (Thomson, 1862); 11 – A. arcuata (Kieffer, 1902); 12 – A. brevis (Thomson, 1862); 13 – A. fuscicornis (Hartig, 1841); 14 – A. salicicola Belizin, 1973.