اولین گزارش گونه Plutothrix bicolorata (Spinola, 1808) (Hymenoptera: Pteromalidae: Trigonoderinae) از ایران

Trigonoderinae Bouček, 1964 (Hymenoptera: Pteromalidae) is one of the derived subfamilies in the new classification of Pteromalidae, which includes one tribe and 10 genera. During survey carried out in Guilan (Roodsar, Rahim abad, Ziaz, 36°52′27.18″ N, 50°13′24.78″ E, 490 m) and Mazandaran (Noor, Tangehvaz, 36°21′55.68″ N, 52°06′10.32″ E, 702 m) provinces, from 2010 to 2011, one genus and one species of this subfamily was collected. The specimens are deposited in the Department of Entomology, Tarbiat Modares University, Tehran (TMUC) insect collection. They were identified as Plutothrix bicolorata (Spinola, 1808). It is the second record of the genus Plutothrix Foerster, 1856 from the Middle East. This species was previously reported from the Palaearctic region and Belgium, Croatia, Czech Republic, Finland, Germany, Italy, Netherlands, Romania, Serbia, Spain, Sweden, England. The genus Pluthothrix is characterized by having: antenna with 12 flagellomeres, the distance between the posterior ocelli shorter than the distance between posterior ocellus and the eye, pronotum narrower than mesoscutum, notauli complete. and axillula large and not convex. Pluthothrix bicolorata differs from other species of this genus by having the following characters: length of pedicel and flagellomeres about 1.4 times as long as width of head, the third clavomeres with sensory receptors (micropilocity), fore wing with two dark spots. Based on the literature, P. bicolorata is parasitoid of Anobium punctatum De Geer, 1774 and Ernobius abietis (Fabricius, 1792) (Coleoptera: Anobiidae). Further studies on the biology and diversity of this insect in different parts of the country are needed to explore its potential for biological control of pests.