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    Effects of cold exposure on Tenebrio molitor (Coleoptera: Tenebrionidae) pupal period, proportion of adult emergence, weight and deformation percentage
    (Entomologica Fennica, 2019) Sonmez, Evrim; Koc, Yesim
    Low temperatures affect many life history traits of insects. The purpose of this study was to assess the effects of duration of cold exposure on the length of Tenebrio molitor's pupal period, proportion of adult emergence, adult weight and proportion of deformed adults. The trials were conducted in a laboratory in constant conditions with wheat flour and whole-wheat flour meal were used as food. Cold-exposed groups were achieved by exposing pupae taken on the first day after pupation for 1, 3, 5, 10 and 15 days at +4 degrees C. The results showed that as the period of cold increased, pupal period extended and proportion of deformed adults increased whereas there were no or less straightforward effects on adult weights and proportion of emerged adults, respectively.
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    Impact of maternal age on performance of the progeny in Galleria mellonella (L., 1758) (Lepidoptera: Pyralidae)
    (Entomological Soc Turkey, Ege Univ, 2021) Koc, Yesim; Sonmez, Evrim
    Maternal age is the age of an insect at the time of depositing an egg and is an important factor impacting on the properties of the progeny. This study determined the influence of maternal age on the preadult total development time, larval development time, pupal development time, pupal weight and adult longevity of Galleria mellonella (L., 1758) (Lepidoptera: Pyralidae). This study was conducted in 2018 in the Biology Laboratory of Science Teaching, Sinop University. The insects were grouped into four groups (1, 5, 10 and 15 d-old) and they were kept under laboratory conditions (28 +/- 2 degrees C and 65 +/- 5% RH and continuous darkness). Larval development time, total preadult development time and longevity decreased with maternal age whereas pupal development time increased. Although the development time of the progeny of younger females lasted longer, total longevity increased. Although, the progeny of younger females had increased longevity, progeny of older females was advantaged in terms of development time.