Chaitophorus horii Takahashi 1939

Chaitophorus horii Takahashi, 1939 Materials Type status: Other material. Occurrence: recordedBy: J. Havelka; individualCount: 3; sex: female; lifeStage: adult; occurrenceStatus: present; disposition: in collection; associatedOccurrences: host: Salix herbacea; occurrenceID: 19819F5C-4912-5340-A02F-DFD62934B644; Taxon: taxonID: 2074388; namePublishedInID: http://hdl.handle.net/2115/9419; scientificName: Chaitophorus horii Takahashi, 1939; namePublishedIn: Takahashi, R. (1939) Some Aphididae from Hokkaido (Hemiptera). Insecta Matsumurana, 13 (4), 114–128.; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Aphididae; genus: Chaitophorus; specificEpithet: horii; nomenclaturalCode: ICZN; taxonomicStatus: accepted; Location: continent: Asia; country: North Korea; countryCode: KP; stateProvince: Ryanggang Province; municipality: Samjiyeon; locality: Mt. Baekdu; decimalLatitude: 41.899; decimalLongitude: 128.394; geodeticDatum: WGS 84; coordinateUncertaintyInMeters: 100; Identification: identifiedBy: Yeyeun Kim; dateIdentified: 2025-02-18; Event: samplingProtocol: hand collected; eventDate: 1988-06-24; year: 1988; month: 6; day: 24; Record Level: type: specimen; modified: 2025-03-28; language: en; rights: Seoul National University; rightsHolder: Content licensed under Seoul National University; accessRights: not for profit use only; institutionID: NPRI; collectionID: SNU; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: J. Havelka; individualCount: 2; sex: female; lifeStage: adult; occurrenceStatus: present; disposition: in collection; associatedOccurrences: host: Salix herbacea; occurrenceID: F12B8F44-2F65-551B-8C05-8C7EE953F41E; Taxon: taxonID: 2074388; namePublishedInID: http://hdl.handle.net/2115/9419; scientificName: Chaitophorus horii Takahashi, 1939; namePublishedIn: Takahashi, R. (1939) Some Aphididae from Hokkaido (Hemiptera). Insecta Matsumurana, 13 (4), 114–128.; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family: Aphididae; genus: Chaitophorus; specificEpithet: horii; nomenclaturalCode: ICZN; taxonomicStatus: accepted; Location: continent: Asia; country: North Korea; countryCode: KP; stateProvince: Ryanggang Province; municipality: Samjiyeon; locality: Mt. Baekdu; decimalLatitude: 41.899; decimalLongitude: 128.394; geodeticDatum: WGS 84; coordinateUncertaintyInMeters: 100; Identification: identifiedBy: Yeyeun Kim; dateIdentified: 2025-02-18; Event: samplingProtocol: hand collected; eventDate: 1988-06-17; year: 1988; month: 6; day: 17; Record Level: type: specimen; modified: 2025-03-28; language: en; rights: Seoul National University; rightsHolder: Content licensed under Seoul National University; accessRights: not for profit use only; institutionID: NPRI; collectionID: SNU; basisOfRecord: PreservedSpecimen Description Apterous viviparous female (Fig. 1, Table 1). Colour (macerated specimens). Body and appendages wholly pale. Morphology. Body elongated and oval-shaped; its length twice as long as width, about 1.36 mm. Head: length of antenna slightly over 0.5 times of the body length; PT almost 2 times longer than Ant. VIb.; longest seta on Ant. III same as long as basal width of segment. URS beak-shaped, with 6-7 setae; nearly 1.1 times as long as 2 HT. Thorax: Legs comparatively shorter than other Chaitophorus spp., hind femur and tibia about 0.29 and 0.45 mm long, respectively. Abdomen: abdominal segments fused from I to VII; most setae on tergite relatively long, stunted or furcate; nearly 10 setae each on tergite VI and VIII. SIPH slightly long and stump-shaped. Cauda knobbed with 5-6 setae. Host plants Salix caprea, S. herbacea, S. rorida, S. viminalis, Salix spp. (Blackman and Eastop 2024). Diagnosis Chaitophorus horii morphologically resembles C. purpureae. However, it is distinguished by its beak-shaped URS and long dorsal setae. Distribution Korea (new record), South Europe, Japan, Thailand (Blackman and Eastop 2024).