Aphidius matricariae Haliday, 1834 Material examined: 10♀, GIza (on T. aestivum / S. avenae), 8.iii.2008 (leg. Samar); 5♀, Giza (on A. sativa / R. padi), 26.iii.2012 (leg. Samar); 32♀, 3♂, Giza (on A. sativa / R. padi), 18–27.ii. 2013 (leg. Samar); 1♀, Giza (on T. aestivum / S. avenae), 18.iii.2013 (leg. Samar); 4♀, Giza (on A. sativa / R. padi), 19.ii. 2014 (leg. Samar); 35♀, Giza (on T. aestivum / S. avenae), 19.ii.2014 (leg. Samar); 3♀, 1♂, Giza (on T. aestivum / S. avenae), 6–20.III.2014 (leg. Samar); 5♀, Giza (on A. sativa / R. padi), 20.iii.2014 (leg. Samar); 2♀, 1♂, Qalubia (on A. sativa / S. avenae), 28.iii.2015 (leg. Samar); 1♀, Giza (on T. aestivum / S. avenae), 5.Iv.2015 (leg. Samar). Previous records from cereal fields in Egypt: GIza (T. aestivum / R. maidis) (IbrahIm 1990a, b; IbrahIm & AfIfI 1991), Upper Egypt, MIddle Egypt, Delta, New Valley (T. aestivum / R. maidis, R. padi, S. graminum and S. avenae) (El-HeneIdy et al. 1994, 2001, 2002, 2003), BenI-Suef, and Kafr El-SheIkh (T. aestivum / R. maidis, R. maidis and S. graminum) (El-HeneIdy & Abdel-Samad 2001), GIza (H. vulgare) (El-FatIh 2006), Mansoura- DakahlIa (T. aestivum / R. maidis, R. padi, S. graminum, and S. avenae), ZagazIg (no further data are provIded) (Megahed 2000), Upper Egypt-AssIut (T. aestivum / R. maidis, R. padi, and S. graminum) (Abdel-Rahman 2005), Upper Egypt-Sohag (T. aestivum / R. maidis, R. padi, S. avenae, S. graminum) (Slman 2006).

Published as part of Kavallieratos, Nickolas G., 2017, Identification key, diversity and host associations of parasitoids (Hymenoptera: Braconidae: Aphidiinae) of aphids attacking cereal crops in Egypt, pp. 143-154 in Zootaxa 4312 (1) on pages 145-146, DOI: 10.11646/zootaxa.4312.1.6, http://zenodo.org/record/852136