J. Ent. Res. Soc., 11(3): 65-73, 2009 ISSN:1302-0250 Leiophron (Euphorus) defciens Ruthe (Hymenoptera, Braconidae, Euphorinae), A Parasitoid of Campylomma diversicornis (Reuter) (Heteroptera, Miridae) in Turkey Levent EFİL 1 Coşkun GÜÇLÜ 2 Sergey A. BELOKOBYLSKIJ 3 1 Plant Protection Research Institute, 21100, Diyarbakir, TURKEY, e-mail: efl46@hotmail.com 2 Atatürk University, Faculty of Agricultural, Department of Plant Protection, 25240 Erzurum, TURKEY, e-mail: cguclu@atauni.edu.tr (Corresponding author) 3 Zoological Institute Russian Academy of Sciences, St. Petersburg, 199034, Russia; Museum and Institute of Zoology Polish Academy of Sciences, Wilcza 64, Warsaw 00-679, POLAND, e-mail: sb@zin.ru ABSTRACT Leiophron (Euphorus) defciens Ruthe, 1856 (Hymenoptera, Braconidae) was frstly reared from the nymphs of Campylomma diversicornis (Reuter,1878) (Heteroptera, Miridae). This bug is a predator of nymphs and adults of Tetranychus utricae (Koch, 1836) (Acarina, Tetranychidae), as well as eggs and larvae of Helicoverpa armigera Hübner, 1805 (Noctuidae, Lepidoptera), pests causing important damage on the cotton plants in the plains of Bismil (Diyarbakır) and Kizıltepe (Mardin) district. Leiophron (Euphorus) frst recorded for the Turkish fauna is redescribed, and some remarks on its biology and ecology are given. Key Words: Parasitoid, predator, Leiophron defciens, Campylomma diversicornis frst record, Turkey. INTRODUCTION Euphorinae is a morphologically and biologically peculiar subfamily of Braconidae (Hymenoptera), including about 40 genera from 12 tribes worldwide (Shaw, 1985; Belokobylskij, 2000, van Achterberg, 2004). Most species are koinobiont endoparasitoids of insects from the orders Coleoptera, Heteroptera, Psocoptera, Hymenoptera, Neuroptera and Orthoptera (Shaw, 1985; 1988). The euphorins are usually solitary parasitoids except for the some gregarious species of Perilitus Nees Microctonus (Wesmael) and Syntretus Förster (McColloch, 1918; Wade & St George, 1923; Luff, 1976; Loan, 1967; Loan & Holiday, 1979; Doyen, 1984). Among the other genera, Leiophron Nees species attack primarily nymph and adult bugs (Heteroptera) (Leston, 1961; Waloff, 1967; New, 1970). The bug Campylomma diversicornis (Reuter, 1878) plays an important role for biological control of pests of cotton (Göven & Efl, 1994; Liu et al. 2000). This bug feeds on nymphs and adults of Tetranychus urticae (Koch, 1836) (Acarina, Tetranychidae)