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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.62 No.4 pp.295-298

The New Record of Pleotrichophorus pseudoglandulosus (Palmer, 1952) (Hemiptera: Aphididae) in South Korea

Hyobin Lee1, Deog-Kee Park2, Ki-Jeong Hong2, Wonhoon Lee1,3*
1Department of Plant Medicine, Gyeongsang National University, Jinju 52828, Korea
2Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Korea
3Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 52828, Korea
October 10, 2023 November 8, 2023 November 11, 2023


Pleotrichophorus pseudoglandulosus (Palmer, 1952) collected on Artemisia princeps Pamp. is reported for the first time in South Korea. Species description, measurement, diagnosis, distributions, host plants, illustrations, and identification key of apterous viviparous females in the genus Pleotrichophorus from South Korea are provided.

한국의 미기록종 Pleotrichophorus pseudoglandulosus (Palmer, 1952)(노린재목: 진딧물과)에 대한 보고

이효빈1, 박덕기2, 홍기정2, 이원훈1,3*
1경상대학교 식물의학과
2순천대학교 농생명과학과
3경상국립대학교 농업생명과학연구원


본 연구에서는 쑥에서 서식하는 Pleotrichophorus pseudoglandulosus (Palmer, 1952) 를 처음으로 보고한다. 무시성충에 대한 형태학적 정보, 기주식물, 분포지역, 한국에 분포하는 Pleotrichophorus 속 종들에 대한 분류키를 제공한다.

    The genus PleotrichophorusBörner, 1930 comprise 62 species in the world (Blackman and Eastop, 2023). Most of species are distributed in America and Europe, and three species, Pleotrichophorus chrysanthemi (Theobald, 1926), Pleotrichophorus glandulosus (Kaltenbach, 1846), and Pleotrichophorus narzikulovi (Narzikulov and Umarov, 1969), have been recorded in Asia (Blackman and Eastop, 2023). Most of species in this genus are pale green to yellow bearing numerous short capitate hairs (Corpuz-Raros and Cook, 1974) and are holocyclic on Compositae (Hille, 1953).

    Until now, two species have been recorded in South Korea: P. chrysanthemi was recorded by Theobald (1926) and P. glandulosus was recorded by Paik (1965). From 2019 to 2020, Pleotrichophorus pseudoglandulosus (Palmer, 1952) has been newly collected on Artemisia princeps Pamp. (Asteraceae) in South Korea. So, in this study, we report apterous viviparous females of P. pseudoglandulosus for the first time in South Korea.

    Materials and Methods

    Colonies of P. pseudoglandulosus had been collected on A. princeps from 2019 to 2020. The aphid samples were preserved in 95% alcohol and slide glass specimens were mounted on Canada balsam, following the method of Blackman and Eastop (2000) methods. Images and measurements were taken by LEICA (DM3000 LED) and LEICA (CTR6 LED). All specimens were deposited Institute of Agriculture & Life Science, Gyeongsang National University. The following abbreviations are used in morphological features: BL - body length from the head to the end of cauda; We - Width across eyes; Ant.I-VI - antennal segments, respectively; Ant.VIb - antennal segment base of VI; PT - processus terminalis; URS - Ultimate rostrum segment; 1HT - first tarsal segment of hind leg; 2HT - second tarsal segment of hind leg; HTB - hind tibia; AP - Anal plate; SIPH - Sipuncula.

    Taxonomic Accounts

    Pleotrichophorus pseudoglandulosus (Palmer, 1952) 가는 쑥못털진딧물(신칭)(Table 1; Figs. 1-2)

    Capitophorus pseudoglandulosusPalmer, 1952: 250.

    Pleotrichophorus pseudoglandulosusHille, 1953: 114.

    Capitophorus frigidaeKnowlton, 1954: 8.

    Description. Apterous viviparous female. Morphology. Head and thorax light green and yellow (Fig. 2); Body elongated oval, 2.269-2.614 mm long (Fig. 1A); Head weakly sclerotized, moderately produced laterofrontal tubercle small of each antenna near the base, Head with funnel-shaped 26-36 setae (Fig. 1E); We 0.461-0.524 mm long (Fig. 1B); Ant. brown, 6-segmented, Whole Ant., 2.922-3.241 mm long; Ant.III longer than Ant.IV; Ant.I, Ant.II with 6 setae, Ant.III with 19 setae, Ant.IV with 13 setae, Ant.V with 8 setae, Ant.VIb with 3-5 setae, PT with 3-6 setae; Ant.III bearing 1-3 secondary rhinarium; Ant.V bearing one primary rhinaria; Ant.VIb bearing one primary rhinaria with well developed PT (Fig. 1I); Dorsal abdomen integument, densely cover of funnel- to coneshaped setae; Rostrum reaching the middle Furmorotrochanter, URS cylindrical needle-shaped, both edges are straight or curved inward, with 10 accessory setae, 0.107-0.123 mm long (Fig. 1F); Legs with 3,3,3 hairs on 1st tarsal joints; HTB 1.070-1.435 mm long (Fig. 1C), 2HT 0.114-0.147 mm long, 0.98-1.29 times as long as URS (Fig. 1H); Siphuncula cylindrical- shaped, 0.556-0.687 mm long, 2.33-2.89 times as long as Cauda (Fig. 1B); Anal Plate sclerotized with a total of 10-11 setae; Cauda 0.233-0.275 mm long, weakly sclerotized with 5 setae (Fig. 1G).

    Materials examined. 10 apterous viviparous females, Daejeon-si, South Korea, 09.v.2019, on Artemisia princeps, D.-K. Park, GNU; 2 apterous viviparous females, Imsil-gun, Jeollabuk-do, South Korea, 11.iv.2020, on Artemisia princeps, D.-K. Park, GNU.

    Host plants.Artemisia douglasiana Besser, Artemisia frigida Willd, Artemisia ludoviciana Nutt., Artemisia vulgaris L., Artemisia ludoviciana Nutt. spp mexicana, Artemisia tridentata Nutt. (Palmer), Artemisia princeps Pamp. (new record) (Asteraceae).

    Distributions. Korea (new record), USA, Canada.

    Remark. According to Corpuz-Raros and Cook (1974), P. pseudoglandulosus is similar to P. glandulosus. However, P. pseudoglandulosus has much shorter and funnel-shaped posterior body setae than those of P. glandulosus. In addition, SIPH/Cauda ratio (2.98 times) of P. pseudoglandulosus is higher than that (2.01 times) of P. glandulosus.

    Key to species of the genus Pleotrichophorus in Korea

    • 1. Ant.V longer than 0.57 mm ··········································· ······································ Pleotrichophorus glandulosus

    • - Ant.V shorter than 0.57 mm ·········································· 2

    • 2. SIPH neither noticeably long (less than 0.58 mm) not short (more than 0.49 mm) and their ratio to cauda between 0.66 to 2.3 times ·· Pleotrichophorus chrysanthemi

    • - Siphuncula either long (at least 0.58 mm) and at least 2.3 times as long as cauda ···················································· ···························· Pleotrichophorus pseudoglandulosus


    This work was carried out through “Survey and identification of insect pests of small area-cultivated crops in southern areas of Korean peninsula” (Project Code PJ01450704) supported by Rural Development Administration, South Korea.

    Statements for Authorship Position & Contribution

    • Lee, H.: Gyeongsang National University, Student in Ph.D; Designed the research, wrote the manuscript and examined specimens

    • Park, D.-K.: Sunchon National University, Researcher; Collected and examined specimens

    • Hong, K.-J.: Sunchon National University, Professor, Ph.D; Collected and examined specimens

    • Lee, W.: Gyeongsang National University, Professor, Ph.D; Examined specimens and designed the research

    All authors read and approved the manuscript.


    Apterous viviparous female of Pleotrichophorus pseudoglandulosus (A, Whole body; B, SIPH; C, HTB; D, Head; E, Head setae; F, URS; G, Cauda; H, 2HT; I, Whole Antenna).


    Apterous viviparous female of Pleotrichophorus pseudoglandulosus on Artemisia princeps.

    The biometric data of apterous viviparous females of Pleotrichophorus pseudoglandulosus


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    9. Paik, W.H., 1965. Aphid of Korea. Seoul National University, Seoul, Korea.
    10. Palmer, M.A., 1952. Aphids of the Rocky Mountain region. Entomol. Soc. Am. for Thomas Say Foundation 5, 250-452.
    11. Theobald, F.V., 1926. The Plant Lice or Aphididae of Great Britain, Headley Brothers, Ashford, Kent. 1, 372.

    Vol. 40 No. 4 (2022.12)

    Journal Abbreviation Korean J. Appl. Entomol.
    Frequency Quarterly
    Doi Prefix 10.5656/KSAE
    Year of Launching 1962
    Publisher Korean Society of Applied Entomology
    Indexed/Tracked/Covered By