Three new species of the genus Picrostigeus Förster, 1869 (Hymenoptera: Ichneumonidae, Orthocentrinae) from Iran.

In this paper, three new species of the genus Picrostigeus Förster, 1869 (Hymenoptera: Ichneumonidae, Orthocentrinae) are described from central north of Iran, collected by Malaise traps during 2010 and 2011: Picrostigeus furcatus Mohammadi-Khoramabadi & Talebi, sp. nov., P.

Effect of temperature on life history of Aphidius colemani and Aphidius matricariae (Hymenoptera: Braconidae), two parasitoids of Aphis gossypii and Myzus persicae (Homoptera: Aphididae).

The performance of two aphid parasitoids, Aphidius colemani Viereck and Aphidius matricariae (Haliday), against Aphis gossypii Glover on greenhouse cucumber (Cucumis sativus L.) and Myzus persicae (Sulzer) on sweet pepper (Capsicum annuum L.) were evaluated at various constant temperatures.