This study was conducted to investigate the relationship between the climbing up event of Luciola lateralis larvae and water temperature. In the laboratory condition, the larvae did not come out of water at constant temperature condition of 19.3 ± 0.3℃ and tried to climb up at varying temperature condition of 20~22℃ (mean temperature 20.9 ± 0.9℃) without success. However, they climbed up at constant temperature condition of 20.8 ± 0.6℃. The frequency of the larval climbing up was highest as 63.6% at 20~21℃. The most larvae climbed up at approximately 21℃ of average daily water temperature, In the natural condition, the larvae climbed up at 19.8~21.7℃ and the frequency of the larval climbing up was high as 80.4% at 20~21℃. The larval climbing up was also little observed at 19~20℃ at which no larval climbing up was found in the laboratory experiment. No larvae attempted to climb up when water temperature was below 19℃ and above 22℃. It took 18 days from climbing up of larvae to appearance of adults. In its habitat, the range of water temperature required for larvae to climb up is assumed to be 19.6~21.8℃ and the most suitable water temperature may be 20.4 ± 2.3℃. Therefore, the range of water temperature required for larvae to climb up is assumed to be 19.8~21.7℃, and the suitable water temperature range for larvae may be 20~21℃, and the most suitable temperature is thought to be 21℃.

The Luciola lateralis larva took 5.3 days from climbing on the land to the pupal cocoon formation. It took 6.6 days for a larva to eventually transform to a pupa after building a pupal cocoon. The size of pupal cocoon was 10.1 ㎜ in length, 4.7 ㎜ in width and its wall thickness was 1.3 ㎜. The mean pupal period was 10.5 days. The adult stayed 6.8 days in the pupal cocoon before escaping the cocoon. The peak adult emergence appeared around 9 p.m., and decreased after 10 p.m. The optimal soil temperature for emergence was 23.4℃. The female adult of the natural population (Nat-type) lived shorter, laid fewer eggs, and the oviposition frequency was fewer than that of the Lab-type individuals. However, a few individuals from the natural population laid 200-400 eggs. The less number of oviposition in the natural population may be due to the fact that the female adults might lay eggs before the collection for the experiment.