--First description of the male of Dendrothrips karnyi (Thysanoptera, Thripidae).

Dendrothrips is one of 12 genera currently recognised in subfamily Dendrothripinae (ThripsWiki 2020). The species of Dendrothrips have the fore wing anteromarginal cilia arising ventrally behind the margin, but in contrast to species in other genera with this character state the wing apex is recurved without a terminal seta (Mound Tree 2016). Species of Dendrothrips breed on leaves, and many have been recorded from species of plant family Oleaceae (Marullo 2003). The species of Dendrothrips are recorded from Europe to Australia, including Africa and Asia. In Iran so far, six species are known in the genus, including: D. aspersus Bhatti, D. degeeri Uzel, D. jasminum Ramakrishna Margabandhu, D. karnyi Priesner, D. phyllireae (Bagnall) and D. saltator Uzel (Alavi et al. 2014, Minaei 2015, Mirab-balou Dosty 2015). Recently the male of D. aspersus was described from Fars province, Iran (Minaei 2017), and the aim here is to describe the previously unknown male of D. karnyi, based on specimens collected in Ilam province, western Iran. Females of D. karnyi are recorded from Poland and northern Italy to Croatia and Turkey, but the male has remained unknown (zur Strassen 2003). Females have previously been recorded from Iran (Bagheri Alavi 2007), but we recently collected one male with a series of females from Vitex agnus-castus, the host plant indicated by zur Strassen (2003).

Functional and numerical responses of Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae) parasitizing cotton whitefly, Bemisia tabaci Gennadius (Homoptera: Aleyrodidae).

Laboratory experiments were conducted to measure the functional and numerical responses of Eretmocerus mundus Mercet parasitizing cotton whitefly, Bemisia tabaci Gennadius. Parasitoids were isolated singly for 24 h in 5 cm petri dishes with either 5, 10, 20, 40, 60 or 100 second nymphal stages of B. tabaci. Results showed a typical type II functional response, with up to 43.2 hosts attacked when 100 hosts were provided. The rate of attack and handling time were 0.0465 and 0.3341 days, respectively. At above mentioned densities, the parasitoids lived an average of approximately 4 days. At host densities of < or =20 host/day, the total number of eggs laid was limited by the number of hosts available. Total fecundity was highest with an average of 196 eggs/female at density 100.