First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding

Schoutedenia Rübsaamen, 1905 (Hemiptera, Aphididae, Greenideinae) is a small aphid genus associated with woody Euphorbiaceae and Phyllanthaceae. Of its two recognised species, Schoutedenia ralumensis Rübsaamen, 1905 is widely distributed across Southeast Asia, India, Africa and along the eastern coa...

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Main Authors: Hwalran Choi, Colin Favret, Seunghwan Lee
Format: Article
Language:English
Published: Pensoft Publishers 2025-08-01
Series:Biodiversity Data Journal
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Online Access:https://bdj.pensoft.net/article/159374/download/pdf/
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author Hwalran Choi
Colin Favret
Seunghwan Lee
author_facet Hwalran Choi
Colin Favret
Seunghwan Lee
author_sort Hwalran Choi
collection DOAJ
description Schoutedenia Rübsaamen, 1905 (Hemiptera, Aphididae, Greenideinae) is a small aphid genus associated with woody Euphorbiaceae and Phyllanthaceae. Of its two recognised species, Schoutedenia ralumensis Rübsaamen, 1905 is widely distributed across Southeast Asia, India, Africa and along the eastern coast of Australia. Taxonomic difficulties arise from subtle morphological differences and an unusual life cycle in which all morphs may occur simultaneously. Moreover, the oviparous female remains inadequately described, limiting reliable identification and comparative analyses.Schoutedenia ralumensis is newly recorded from Cambodia on Phyllanthus sp. (Phyllanthaceae). The poorly-known morphology of oviparous females is re-described with live photographs, biometric measurements and photomicrographic illustrations. Additionally, DNA barcoding, based on mitochondrial cytochrome c oxidase (COI) sequences, was performed on the Cambodian specimen and compared with available sequences, including one of S. emblica. Additionally, we propose the synonymisation of S. emblica under S. ralumensis as a conspecific variant. These findings expand the known distribution of S. ralumensis and contribute to a better understanding of aphid diversity in Cambodia.
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spelling doaj-art-53fc8d0bf264400785e3ee7245143fe22025-08-20T02:56:32ZengPensoft PublishersBiodiversity Data Journal1314-28282025-08-011311310.3897/BDJ.13.e159374159374First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcodingHwalran Choi0Colin Favret1Seunghwan Lee2Seoul National UniversityUniversity of MontrealSeoul National UniversitySchoutedenia Rübsaamen, 1905 (Hemiptera, Aphididae, Greenideinae) is a small aphid genus associated with woody Euphorbiaceae and Phyllanthaceae. Of its two recognised species, Schoutedenia ralumensis Rübsaamen, 1905 is widely distributed across Southeast Asia, India, Africa and along the eastern coast of Australia. Taxonomic difficulties arise from subtle morphological differences and an unusual life cycle in which all morphs may occur simultaneously. Moreover, the oviparous female remains inadequately described, limiting reliable identification and comparative analyses.Schoutedenia ralumensis is newly recorded from Cambodia on Phyllanthus sp. (Phyllanthaceae). The poorly-known morphology of oviparous females is re-described with live photographs, biometric measurements and photomicrographic illustrations. Additionally, DNA barcoding, based on mitochondrial cytochrome c oxidase (COI) sequences, was performed on the Cambodian specimen and compared with available sequences, including one of S. emblica. Additionally, we propose the synonymisation of S. emblica under S. ralumensis as a conspecific variant. These findings expand the known distribution of S. ralumensis and contribute to a better understanding of aphid diversity in Cambodia.https://bdj.pensoft.net/article/159374/download/pdf/aphidCOICambodia<i>Phyllanthus</i><i>Schou
spellingShingle Hwalran Choi
Colin Favret
Seunghwan Lee
First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
Biodiversity Data Journal
aphid
COI
Cambodia
<i>Phyllanthus</i>
<i>Schou
title First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
title_full First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
title_fullStr First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
title_full_unstemmed First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
title_short First record of the tropical aphid Schoutedenia ralumensis (Hemiptera, Aphididae) from Cambodia, with a re-description of the oviparous females and DNA barcoding
title_sort first record of the tropical aphid schoutedenia ralumensis hemiptera aphididae from cambodia with a re description of the oviparous females and dna barcoding
topic aphid
COI
Cambodia
<i>Phyllanthus</i>
<i>Schou
url https://bdj.pensoft.net/article/159374/download/pdf/
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