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一九八一年冬季,我们调查黑带二尾舟蛾蛹消失量的同时,发现了二尾舟蛾金小蜂(暂名),自然寄生率在2％左右。该蜂以蛹在寄主蛹内越冬。每个寄主出蜂170～300头左右。成蜂呈靛兰色,具金属光泽;蜂体长约2.0～4.0毫米,体宽0.9～1.0毫米。有强趋光性和趋上性。该蜂有以下几个特点: 1.寄主广。目前初步试验,寄主蛹有黑带二尾,杨二尾,兰目天蛾落叶松松毛虫等,更值得重视的是柞蚕蛹的寄生率较高,可做为育蜂寄主。
In the winter of 1981, when we surveyed the disappearance of pupae of two-tailed mollusks in the black belt, we found the golden-beetle (tentative name), which possessed a natural parasitic rate of about 2%. The bee pupae wintering in host pupae. Each host bees about 170 ~ 300 head. Bees were indigo blue, with metallic luster; bees about 2.0 to 4.0 mm long, body width of 0.9 to 1.0 mm. Have strong phototropism and tendencies. The bees have the following characteristics: 1. The host is wide. At present, preliminary experiments, the host pupae with black belt two, Yang two tail, Limen moth dendrolimus, etc., more worthy of attention is higher tussah pupa parasitic rate, can be used as the bee host.