Collemboerythraeus vosoughae Noei, Saboori and Hakimitabar gen. et sp. nov. (Acari: Erythraeidae) is described and illustrated from larvae ectoparasitic on unidentified springtails (Hexapoda: Collembola: Sminthuridae) from Jahrom city, Fars province, and also from soil samples (off host) from Khorramabad city, Lorestan province, Iran. A key to the genera of larval Erythraeinae is presented.
Neotrombidium hajizadehi Noei & Saboori sp. nov. and Neotrombidium khanjanii Noei & Saboori sp. nov. (Acari: Neotrombidiidae), collected from unidentified beetles (Coleoptera: Carabidae) in Khorramabad, Aleshtar and Dore Chegeni cities, Lorestan Province, Iran, are described. A key to larval species of Neotrombidium of the world is provided and the generic diagnosis is amended.
The effects of six ambient temperatures (15, 20, 25, 30, 35 and 37.5ºC) on life table parameters of Tetranychus kanzawai Kishida (Tetranychidae) were studied under laboratory conditions on soybean (Glycine max (L.) Merrill). Total immature developmental time of females at the above-mentioned temperatures was 28.55, 16.34, 9.01, 6.96, 5.56 and 5.65 days, respectively. A linear and two nonlinear models of Lactin and SSI were fitted to developmental rate of immature stages of T. kanzawai to predict the developmental rate as a function of temperature, as well as to estimate the thermal constant (k) and critical temperatures. The estimated k for total immature developmental time of females and males was 134.58 and 126.74 DD, respectively. The estimated Topt and Tmax by Lactin model for overall immature stages were 36.20 and 40.70ºC, respectively. Intrinsic optimum temperature (TФ) and T1 (Topt) by SSI model for total immature stages was estimated to be 23.23 and 35.71ºC, respectively. Also the estimated TL and Th of SSI model for overall immature stage were 09.21 and 38.46ºC, respectively. The longest and shortest adult longevity was observed at 15°C (60.63 days), and 37.5°C (7.34 days), respectively. Mated females laid highest and lowest eggs at 25°C (237.96 eggs) and 37.5°C (30.54 eggs), respectively. The rm values ranged from 0.356 day-1 at 30°C to 0.089 day-1at 15°C. The highest value of R0 was 163.55 offspring female-1 at 25°C. The presented information in this study provided new perspective to better management of T. kanzawai on apple trees in Iran.
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