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. 2025 May 7:13:e150852.
doi: 10.3897/BDJ.13.e150852. eCollection 2025.

Unveiling hidden diversity: new records of Chaitophorus (Hemiptera, Aphididae) in Korea from historical specimens

Hwalran Choi  1 , Yeyeun Kim  1 , Seunghwan Lee  1
Affiliations

Unveiling hidden diversity: new records of Chaitophorus (Hemiptera, Aphididae) in Korea from historical specimens

Hwalran Choi et al. Biodivers Data J. .

Abstract

Background: The aphid genus Chaitophorus Koch, 1854 (Hemiptera, Aphididae, Chaitophorinae) has been studied in Korea from historical specimens.

New information: Korean Chaitophorus aphids have been confirmed, including four new records: C.horii Takahashi, 1939; C.leucomelas Koch, 1854; C.salijaponicus Essig and Kuwana, 1918; and C.tremulae Koch, 1854. These four newly-recorded species are described with biometric measurements and illustrations. A modified taxonomic key for Korean Chaitophorus spp. is presented.

Keywords: East Asia; Salicaceae; aphids.

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Figures

Figure 1.
Figure 1.
Apterous viviparous female of Chaitophorushorii Takahashi, 1939. A whole body; B hind tibia and tarsus; C antenna; D head; E cauda; F siphunculus; G ultimate rostral segments. Scale bar: A, 0.5 mm; B,C, 0.1 mm; D, 0.1 mm; E,F,G, 0.05 mm.
Figure 2.
Figure 2.
Apterous viviparous female of Chaitophorusleucomelas Koch, 1854. A whole body; B hind tibia and tarsus; C antenna; D head; E cauda; F siphunculus; G ultimate rostral segments. Scale bar: A, 0.5 mm; B,C, 0.1 mm; D, 0.1 mm; E,F,G, 0.05 mm.
Figure 3.
Figure 3.
Apterous viviparous female of Chaitophorussalijaponicus Essig and Kuwana, 1918. A whole body; B hind tibia and tarsus; C antenna; D head; E cauda; F siphunculus; G ultimate rostral segments. Scale bar: A, 0.5 mm; B,C, 0.1 mm; D, 0.1 mm; E,F,G, 0.05 mm.
Figure 4.
Figure 4.
Apterous viviparous female of Chaitophorustremulae Koch, 1854. A whole body; B hind tibia and tarsus; C antenna; D head; E cauda; F siphunculus; G ultimate rostral segments. Scale bar: A, 0.5 mm; B,C, 0.1 mm; D, 0.1 mm; E,F,G, 0.05 mm.
Figure 5.
Figure 5.
Apterous viviparous females of Korean Chaitophorus spp. from this study. 1. C.populeti 2. C.saliniger 3. C.horii 4. C.purpureae 5. C.leucomelas 6. C.populialbae 7. C.saliapterus 8. C.salijaponicus 9. C.tremulae 10. C.hokkaidensis
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