Alloxysta fracticornis ( 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 : 354-355

* Alloxysta fracticornis ( Thomson, 1862)

Material examined (15 JJ 31 ♀♀). SERBIA: Aphidius funebris Mackauer, 1961 – Uroleucon sp. on Crepis sp. , Jakovački Ključ, 7.v.2007: 1 ♀; unknown aphid and primary parasitoid on Medicago sativa, Dunavac , 31.v.2011: 2 ♀♀; Praon exsoletum (Nees, 1811) – Therioaphis trifolii (Monell, 1882) on Medicago sativa, Besni fok , 13.vi.2011: 2 JJ; unknown aphid and primary parasitoid on Medicago sativa, Kovilovo , 15.ix.2011: 1 J; unknown aphid and primary parasitoid on Medicago sativa, Padinska Skela , 26.v.2011, 9.vi.2010: 2 ♀♀; Aphidius sp. – Sitobion avenae on Triticum aestivum, Mihajlovac , 16.vi.2012: 1 ♀; Umčari-Donji Kraj, 10.vi.2012: 3 JJ 1 ♀; 12.vi.2012: 2 JJ 6 ♀♀; Umčari-Parloge, 10.vi.2012: 1♀; Umčari-Kotlova, 12.vi.2012: 2JJ 2♀♀; 15.vi.2012:2JJ 1♀; Živkovac- Site 1, 14.vi.2012: 1 J 2 ♀♀; 16.vi.2012: 1 ♀; Vodanj-Ralja, 18.vi.2012: 1 ♀; Živkovac-Site 1, 7.vi.2012: 1 ♀. SLOVENIA: Aphidius ervi Haliday, 1834 , Aphidius rhopalosiphi de Stefani-Perez, 1902 and Ephedrus plagiator – Sitobion avenae on Triticum aestivum , Ljubljana, 20.v.2009: 1 ♀; Aphidius funebris – Uroleucon cichorii (Koch, 1855) on Cichorium intybus , Koper, 17.vi.2009: 2 ♀♀; Aphidius sp. – Sitobion avenae on Avena sativa , Koper, 17.vi.2009: 1♀; unknown primary parasitoid – Phorodon humuli (Schrank, 1801) on Prunus domestica , Nova Gorica, Kromberk, 8.v.2008:1J 4♀♀; unknown aphid and primary parasitoid on Leontodon hispidus, Šempeter , 17.vi.2009: 1 J; unknown plant, aphid and primary parasitoid, Ljubljana, 3.vi.2011: 1 ♀. [13JJ and 24 ♀♀ deposited in UB, 2 JJ and 7 ♀♀ deposited in IZFBUB].

Diagnosis. Alloxysta fracticornis has closed radial cell, propodeal plate and no pronotal carinae. It is similar to A. mullensis , but they can be easily differentiated by the proportions of the lengths of flagellomeres: F1 longer than pedicel and F1–F3 subequal in length in A. fracticornis ( Fig. 20 ), while F1 subequal to pedicel, F1 longer than F2, and F2 subequal to F 3 in A. mullensis ( Fig. 17 ).

Short redescription. Head, mesosoma and metasoma brown; antennae yellow, darkening towards the end; legs yellow; veins nearly transparent. Female antennae 13-segmented; F1–F2 smooth and thinner than remaining ones, F3–F11 club-shaped, with rhinaria; F1 longer than pedicel. F1–F3 subequal in length, F3 shorter than F4 ( Fig. 20 ). Male antennae 14-segmented; F1–F2 smooth and thinner than remaining ones, F3–F12 club-shaped, with rhinaria; F1 longer than pedicel. F1–F3 subequal in length, F3 longer than F4. Pronotum covered with abundant setae without visible carinae. Propodeum covered with abundant setae with two straight carinae joining at the base. Forewing longer than body; radial cell closed, 2.2 times as long as wide ( Fig. 10 ).

Distribution. Palaearctic Region. New records from 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 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.