甘肃白水江自然保护区灯蛾科昆虫区系研究

本文叙述了白水江自然保护区５个主要森林类型中灯蛾科昆虫的种类和数量组成，成虫动态，区系成份和寄主植物等，本地区灯蛾科有５亚科２６属５４种，占全国属种的２５．１％，其中Ｓｐｉｌａｒｃｔｉａ为优势属，金污灯蛾和八点灰灯蛾为优势种，虫种数以中山常绿落叶阔叶混交林为最多，而虫口数则以落叶阔叶林带最多。

The Arctiidae insect Fauna Research of the Baishuijiang Nature Preserve in Gansu Province

The specimens of the insect fauna were captured all with moth-killing lamps. At Baishuijiang nature preserve there are 5 subfamilies (Lep Arctiidae) 26 genera, 54 species on the hillsides which account for 25. 1% of the genera or species respectively in China. It has been proved that the Arctiidae is abundant in the Baishuijinag natrue preserve, especially the species of spilarctia which are the most numerous spilarctia flavalis and creatonotus transiens are the dominant species. In the five forest types, the Arctiidae has been found the most in variety at the half mountain which is covered with evergreen defoliation broad-leaved mixed forest, but the defoliation hardwood forest has the greatest population density. The ecological distribution of the Arctiidae is more extensive and its density is aiso high. The species emerges most from June to July. Taking up to 50. 0% of the species is theoriental Fauna and the palaearctic Fauna take up to 11. 1% Oriental and Palaearctic faunae commensal of the species takes up to 38. 9%.