Bu çal›flma, s›cakl›¤›n S. gregaria’ da geliflme, efleysel olgunlaflma süresi, besin tüketimi ve vücut a¤›rl›¤›na etkisini belirlemek amac›yla 25 ve 30°C s›cakl›klarda yap›lm›flt›r. Böcekler taze bu¤day çimi ve kepekle beslenmifltir. S›cakl›k artt›r›ld›¤›nda hem geliflme süresi hem de efleysel olgunlaflma süresi k›sald›. 25 ve 30°C de toplam nimfal geliflme süresi s›ras›yla 32 ve 22 gün oldu. Benzer flekilde ortalama efleysel olgunlu¤a ulaflma süresi 30°C de 33 gün olurken 25ºC de 52 gün oldu. Böceklerin besin tüketimi ergin hayat›n ilk haftas›n›n sonuna kadar s›cakl›k art›fl›yla birlikte artt›, daha sonra azald›. Birinci nimf evresinden ergin hayat›n ilk haftas›n›n sonuna kadar her hayvan 25°C de 23,82 g bu¤day çimi ve 4,27 g kepek tüketirken 30°C de 25,41 g bu¤day çimi ve 4,27 g kepek tüketti. Bununla birlikte ergin hayat›n ilk haftas›ndan efleysel olgunlu¤a kadar 25°C de yetifltirilen her böce¤in besin tüketimi 10,81 g bu¤day çimi ve 1,01 g kepek olurken, 30°C de s›ras›yla 6, 97 ve 0,84 g oldu. Deneysel sürenin sonunda 25 ve 30°C de yetifltirilen böceklerin vücut a¤›rl›klar› yaklafl›k olarak ayn›yd›.

This study was carried out to determine the effect of temperature on the development, sexual maturation time, food consumption and body weight of S. gregaria, Forsk., at 25 and 30ºC. The insects were fed on fresh wheat sprouts (FWS) and bran (B). When the temperature was increased, both developmental time and attainment time to sexual maturation were shortened. Total nymphal developmental time at 25 and 30ºC was 32 and 22 days, respectively. Similarly, the average attainment time to sexual maturity was 33 days at 30ºC, whereas it was 52 days at 25ºC. The food consumption of the insects increased at higher temperatures until the end of the first week of adult life and decreased thereafter. From the first nymphal stages to the end of the first week of adult life, each animal consumed 23.82 g FWS and 4.27 g B at 25ºC, and 25.41 g FWS and 4.27 g B at 30ºC. However, from the second week of adult life to sexual maturation, the food consumed by each insect reared at 25ºC was 10.81 g FWS and 1.01 g B, whereas at 30ºC it was 6.97 and 0.84 g, respectively. At the end of experimental period, the final weight of the insects reared at 25 and 30ºC was about the same.