We report the solitary parasitism by Colastomion formosanum (Watanabe) (Hymenoptera, Braconidae, Rogadinae) on the larva of Nevrina procopia (Stoll) (Lepidoptera, Crambidae) feeding on Turpinia ternata Nakai (Staphyleaceae) in Amami Ôshima Is., Japan. This is the first host record for the genus Colastomion Baker outside of Papua New Guinea. We have also inferred the phylogenetic relationships of Colastomion species using Bayesian and maximum likelihood approaches, based on the mitochondrial cytochrome oxidase 1 gene. The results indicate two major clades–solitary and gregarious parasitoids–within Colastomion. Colastomion formosanum belongs to the clade of solitary parasitoids that specifically parasitize the crambid subfamily Spilomelinae. Plant-host-parasitoid associations and the evolutionary scenario of the host use of Colastomion are discussed.

中文翻译：

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再次探讨来自日本的新的寄主记录，即Colastomion Baker（膜翅目，Bra科，Rogadinae）的寄主使用和系统发育

我们报告了在日本天河Na岛（AmamiÔshimaIs）上食用Turpinia ternata Nakai（Staphyleaceae）的Nevrina procopia（Stoll）（Lepidoptera，Crambidae）的幼虫上的Colastomion formosanum（Watanabe）（膜翅目，Braconidae，Rogadinae）的孤寄生。这是巴布亚新几内亚以外的Colastomion Baker属的第一个寄主记录。我们还基于线粒体细胞色素氧化酶1基因，使用贝叶斯和最大似然方法推论了天蚕物种的系统发育关系。结果表明，在结肠弹内有两个主要进化枝-孤寄生和寄生寄生。福尔摩沙弹属于一个单独寄生的类寄生物，它专门寄生了斜齿亚科螺旋藻。讨论了植物-寄主-拟寄生物的联系以及拟粘菌的寄主使用的进化情况。