Indomasonaphis anaphalidis ( Basu, 1964 )

Indomasonaphis anaphalidis ( Basu, 1964) View in CoL

Figs 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3 , 12 View Figure 12 , Table 1 View Table 1

Specimens examined.

China: Xizang. • One apterous viviparous female, Cuona County, 19.VIII.2019, No. 46078-1-1, on Senecio sp. , coll. T. T. Xu ; • one apterous viviparous female, 13.VII.2021, No. 51872-1-1, on Senecio sp. , coll. Y. Xu ; • one apterous viviparous female, Yadong County, 9.VII.2022, No. 52804-1-1, on Anaphalis sp. , coll. Z. X. Li ; • one apterous viviparous female (COI GenBank accession: PV 567756 ), with the same collection information as No. 52804 ; • one apterous viviparous female, 7.VII.2022, No. 52782-1-1, on Polygonum sp. , coll. Z. X. Li ; • one apterous viviparous female (COI GenBank accession: PV 567755 ), with the same collection information as No. 52782 .

Diagnosis.

URS long wide-shaped, 3.25–3.49 × of basal width, 1.14–1.26 × of 2 HT, with 12–15 accessory setae (Figs 2 D View Figure 2 , 3 D View Figure 3 ); Ant. III – IV in alatae with 125–130, 9–12 round, protuberant secondary rhinaria, respectively; SIPH long clavate (Figs 2 F View Figure 2 , 3 F View Figure 3 ), thin and cylindrical at basal 1 / 3, then distinctly expanded at distal 2 / 3, and then gradually attenuated to apex, apical part of SIPH with 5–8 rows reticulations, 0.25–0.28 × of body length; the SW SIPH 1.39–1.74 × of BW SIPH; cauda long conical (Figs 2 E View Figure 2 , 3 G View Figure 3 ), 2.89–3.13 × of BW cauda, with 41–43 setae; first tarsal chaetotaxy: 5, 5, 5.

Biology.

The species alternates between Rhododendron (primary hosts) and Asteraceae (secondary hosts, including Anaphalis , Artemisia , Gerbera , Inula , and Senecio ), but it has also been recorded on some atypical host plants ( Eurya japonica , Morus alba , Oxalis corniculata ) ( Verma 1971; Chakrabarti et al. 1983; Favert and Aphid Taxon Community 2025). The aphid feeds on the underside of leaves of Senecio sp. and Anaphalis sp. without causing noticeable damage (Fig. 12 View Figure 12 ), and has additionally been observed infesting Polygonum sp. in China.

Distribution.

India: Himachal Pradesh ( Verma 1971; Chakrabarti et al. 1983), Uttarakhand ( Chakrabarti et al. 1983), Uttar Pradesh ( Chakrabarti et al. 1983), West Bengal ( Basu 1964); Pakistan: Murree ( Muhammad et al. 2024). This species is recorded here for the first time from China, in Xizang Autonomous Region.