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Macrotoma (Bander) fischeri, male: A dorsal aspect B ventral aspect C lateral aspect D label data. Scale bars: 10 mm.
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Locations of investigation sites (red symbol: Gwangneung forest, Korea; blue symbol Ussurisky nature reserve, Russia).
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Investigation methods: A visual survey (naked eye) B light trap C heli-cam D ladder truck E bait trap F pheromone trap.
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Adults of Callipogon relictus discovered in Gwangneung forest: A male in 2014 B female in 2015 C male in 2016 D female in 2017 E female in 2017 F male in 2017.
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Emergence hole of Callipogon relictus in Gwangneung forest, Korea: A–B emergence hole on Carpinus laxiflora C emergence hole on Quercus sp. D emergence hole on Quercus aliena.
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Emergence hole of Callipogon relictus in Ussurisky nature reserve, Russia: A–B emergence hole on Ulmus davidiana var. japonica.
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Emergence hole and fungus on host plant (red circle, emergence hole; blue arrow, fungus): AUlmus davidiana var. japonicaB Carpinus cordata.
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Larval excreta of Callipogon relictus in gallery: A–B larval excreta in Carpinus laxiflora C–D larval extra in Quercus aliena.
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Larvae of Callipogon relictus discovered in Gwangneung forest: A larva in 2010 B–D larva in 2016.
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Pupal exuvium of Callipogon relictus in Gwangneung forest: A exuvium in Carpinus laxiflora in 2012 B exuvium in Quercus aliena in 2016.
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Pupal chambers of Callipogon relictus in Gwangneung forest: A pupal chamber in Carpinus laxiflora B pupal chamber in Quercus aliena.
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Host plants and habitat of Callipogon relictus: A Quercus aliena in Gwangneung forest BUlmus davidiana var. japonica in Ussurisky nature reserve C forest in Ussurisky nature reserve.
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Distribution map of Callipogon relictus in the Korean Peninsula (
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Adult male of Callipogon relictus in Yangyang-gun of Gangwon province (photograph taken by Jeong-Ok Kim)