Chaitophorus leucomelas Koch 1854

Chaitophorus leucomelas Koch, 1854 Materials Type status: Other material. Occurrence: catalogNumber: 87 HA 1644; recordedBy: J. Havelka; individualCount: 24; sex: females; lifeStage: adult; occurrenceStatus: present; disposition: in collection; associatedOccurrences: host: Populus alba; occurrenceID: 71388D05-EB1D-5BF5-A4D7-514768BE84CB; Taxon: taxonID: 2074434; namePublishedInID: https://doi.org/10.5281/zenodo.14387414; scientificName: Chaitophorus leucomelas Koch, 1854; namePublishedIn: Koch, C. L. (1854) In Die Pflanzenläuse Aphiden getreu nach dem Leben abgebildet und beschrieben. J. L. Lotzbeck, Nürnberg. Vol. 1, 1–36 pp.; higherClassification: Animalia; kingdom: Animalia; phylum: Arthropod; class: Insects; order: Hemiptera; family: Aphididae; genus: Chaitophorus; specificEpithet: leucomelas; taxonRank: species; scientificNameAuthorship: Koch, 1854; nomenclaturalCode: ICZN; taxonomicStatus: accepted; Location: continent: Asia; country: North Korea; countryCode: KP; stateProvince: South Hwanghae; municipality: Kaesong; locality: Gongmin Wang Tomb; decimalLatitude: 37.982; decimalLongitude: 126.473; geodeticDatum: WGS 84; coordinateUncertaintyInMeters: 100; Identification: identifiedBy: Yeyeun Kim; dateIdentified: 2025-03-28; Event: samplingProtocol: hand collected; eventDate: 1987-06-01; year: 1987; month: 06; day: 01; Record Level: type: specimen; modified: 2025-03-28; language: en; rights: Seoul National University; rightsHolder: Seoul National University; accessRights: not for profit use only; institutionID: NPRI; collectionID: SNU Type status: Other material. Occurrence: catalogNumber: # 5783; recordedBy: J. Havelka; individualCount: 4; sex: females; lifeStage: adult; occurrenceStatus: present; disposition: in collection; associatedOccurrences: host: Populus sp.; occurrenceID: D29D7CDD-DF15-5196-87CE-EEE7A14FDD6F; Taxon: taxonID: 2074434; namePublishedInID: https://doi.org/10.5281/zenodo.14387414; scientificName: Chaitophorus leucomelas Koch, 1854; namePublishedIn: Koch, C. L. (1854) In Die Pflanzenläuse Aphiden getreu nach dem Leben abgebildet und beschrieben. J. L. Lotzbeck, Nürnberg. Vol. 1, 1–36 pp.; higherClassification: Animalia; kingdom: Animalia; phylum: Arthropod; class: Insects; order: Hemiptera; family: Aphididae; genus: Chaitophorus; specificEpithet: leucomelas; taxonRank: species; scientificNameAuthorship: Koch, 1854; nomenclaturalCode: ICZN; taxonomicStatus: accepted; Location: continent: Asia; country: South Korea; countryCode: KR; stateProvince: North Jeolla Province; municipality: Muju; decimalLatitude: 36.019; decimalLongitude: 127.658; geodeticDatum: WGS 84; coordinateUncertaintyInMeters: 100; Identification: identifiedBy: Yeyeun Kim; dateIdentified: 1989-07-10; Event: samplingProtocol: direct collection; eventDate: 1969-10-29; year: 1969; month: 10; day: 29; Record Level: type: specimen; modified: 1969-10-29; language: en; rights: Seoul National University; rightsHolder: Seoul National University; accessRights: not for profit use only; institutionID: NPRI; collectionID: # 5783; basisOfRecord: PreservedSpecimen Description Apterous viviparous female (Fig. 2, Table 2). Colour (macerated specimens). Body pale, leg, cauda and antenna faintly grey. Head, mandibular lamina, whole Ant. except Ant. III through apical half of Ant. V and SIPH more deeply pigmented. URS dark in peak. Morphology. Body ovoid, about 1.98 mm long. Head: flat with stout seta on frons; mandibular lamina with eight or more setae. Antennal length almost 0.6 times as long as body length; PT almost 3 times longer than Ant. VIb. URS short with eight or more setae. Thorax: pronotum smooth. Hind femur and tibia length about 0.51 mm and 0.69 mm, respectively; hind tibia entirely with long and fine setae. Abdomen: abdominal segments fused from II to VII; dorsal cuticles with nodules and faintly pigmented, with fine, long and pointed setae. SIPH 0.02 times the body length. Cauda knobbed with eight setae. Host plants Populus alba, P. deltoides, P. nigra, P. simonii, Populus spp. (Blackman and Eastop 2024). Diagnosis This species typically has pigmentation on the dorsum, frons and SIPH, but the pigmentation on the dorsum varies depending on the specimen, whereas the pigmentation on the frons and SIPH is always present. Korean Chaitophorus leucomelas has faintly pigmented dorsum, but the frons and SIPH distinctly have pigmentation. Additionally, the pigmentation of antennae and their ratio and dorsal cuticles with nodules follow the referred description (Pintera 1987). Distribution Korea (new record), China, Kazakhstan, Mongolia, Siberia, Europe, Canada, USA, Chile, Africa (Blackman and Eastop 2024).