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首页> 外文期刊>Polar biology >The distribution and biology of Pararctia subnebulosa (Dyar, 1899) (Lepidoptera: Erebidae: Arctiinae), the largest tiger moth species in the High Arctic
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The distribution and biology of Pararctia subnebulosa (Dyar, 1899) (Lepidoptera: Erebidae: Arctiinae), the largest tiger moth species in the High Arctic

机译：高北极地区最大的虎蛾物种天堂甲亚纲（Dar，1899）（鳞翅目：孔雀科：Arctiinae）的分布和生物学

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摘要

The polar tiger moth Pararctia subnebulosa (Dyar 1899) (Erebidae: Arctiinae) is one of the few conspicuous and largest Lepidoptera species in the High Arctic. However, the biology and distribution patterns of this remarkable species have not been sufficiently studied. In the present note, we summarize known data for the species localities, provide DNA barcode data and describe the immature stages and a gregarious parasitoid. The species was collected from Kolguev Island, Arctic European Russia, for the first time. This locality is situated 500 km westward from a previously known species recording in the Yugor Peninsula, which substantiates that P. subnebulosa is also a member of the European fauna. DNA barcode data revealed that the Kolguev specimen shares a close haplotype with those from Chukotka at distance ca. 5,000 km. However, a specimen from Canada has a highly divergent haplotype that indicates that the Russian populations are a separate cryptic species, P. tundrana Tshistjakov 1990. We provide the first data for an assessment of the role of Meteorus parasitoid pressure on the imago abundance of P. subnebulosa. Among 87 moth larvae collected from the Yugor Peninsula, only eight larvae (9.2 %) developed into imagoes, and all of the others (79 ind., 90.8 %) were lost due to parasitoid invasion. DNA barcode data show that this parasitoid is a sister to Meteorus acerbiavorus (Braconidae, Euphorinae). Our findings highlight the existence of multiple cryptic refugia in Beringia and an important role of parasitoids in the suppression of Arctic Lepidoptera populations.
机译：极地老虎蛾Pararctia subnebulosa（Dyar 1899）（Erebidae：Arctiinae）是高北极地区为数不多且最大的鳞翅目物种之一。但是，尚未对该物种的生物学和分布模式进行充分的研究。在本说明中，我们总结了物种位置的已知数据，提供了DNA条码数据，并描述了未成熟阶段和群居的寄生蜂。该物种是首次从俄罗斯北极欧洲的科尔盖夫岛采集的。该地区位于尤戈尔半岛以前已知的物种向西500公里处，该物种证实黑松对虾也是欧洲动物区系的一员。 DNA条码数据显示，Kolguev标本与楚科奇（Chukotka）的单倍型具有大约距离。 5,000公里但是，来自加拿大的标本具有高度不同的单倍型，这表明俄罗斯种群是一个单独的隐性物种，P。tundrana Tshistjakov1990。我们提供了第一个数据来评估流星寄生寄生压力对P的意象丰度的作用。 ne从尤戈尔半岛收集到的87个蛾类幼虫中，只有8个（9.2％）幼虫发育成伊马目虫，其他所有（79个，90.8％）因寄生虫入侵而丧失。 DNA条码数据表明，这种寄生虫是美头藻（Meteorus acerbiavorus）（Braconidae，Euphorinae）的姐妹。我们的研究结果突出了白灵菌中存在多种隐匿性避难所，并且寄生物在抑制北极鳞翅目种群中起着重要作用。

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