갈색날개매미충 알 기생봉인 날개매미충알벌 (Phanuromyia ricaniae)의 생물 특성

This study was conducted to investigate the biological characteristics of Phanuromyia ricaniae (Hemiptera: Platygastroidea), an egg parasitoid of Ricania sp. (Hemiptera: Ricaniidae) as a biological control agent to control Ricania sublimata. The developmental period of P. ricaniae was 3.8 days for eggs, 11.1 days for larvae, and 16.3 days for pupae at 25°C, and 3.4 days for eggs, 7.8 days for larvae, and 15.3 days for pupae at 30°C. Except for the larval stage, the developmental periods were not significantly different, but the egg-to-pupa period at 30°C was significantly shorter than that at 25°C. P. ricaniae emerged at the photophase in 24 hours, but not at the scotophase. A higher emergence rate (34.5%) was seen from 10:00 to 12:00 after the lights were turned. The female-to-male ratio of P. ricaniae was 3 : 1. The longevity of P. ricaniae adults was 49.0 days for females and 44.0 days for males at 20°C, 27.6 days for females and 28.4 days for males at 25°C, and 18 days for females and 14.0 days for males at 30°C. Its longevity at a low temperature (20°C) was longer than that at higher temperatures (25 and 30°C). Adult females laid eggs during all days except from 00:00- 02:00 (scotophase time). The ovipositional distribution rate was 26.1% from 20:00 to 22:00, which was the peak, and the next peak was 15.7% at 10:00 to 12:00. P. ricaniae showed arrhenotokous parthenogenesis in which unfertilized eggs develop into males. Therefore, the results suggest that P. ricaniae may be a biological control agent for R. sublimata.