A new species and two new records of Indomasonaphis Verma, 1971 (Hemiptera, Aphididae) from China Author Nazarov, Shokhruz 0000-0002-9256-7885 State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China & Institute of Zoology, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan & College of Life Science, University of Chinese Academy of Sciences, Beijing, China Author Xu, Ying 0000-0002-8950-7718 State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China & College of Life Science, Ludong University, Yantai, Shandong, China Author Jiang, Li-Yun 0000-0002-2527-9613 State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China Author Qiao, Ge-Xia 0000-0002-7300-6812 State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China & College of Life Science, University of Chinese Academy of Sciences, Beijing, China text ZooKeys 2025 2025-09-29 1253 343 362 journal article 312448 10.3897/zookeys.1253.157130 212f0a35-23b5-4c70-ba24-5d645777a829 PMC12501634 41064596 8527B22E-F0CF-4A06-826F-4BE27EB05EEA

Table 1. Morphometric data on species of Indomasonaphis in China based on examined specimens. All measurements are in mm.

Parts		Indomasonaphis anaphalidis	Indomasonaphis polygoni Qiao & Xu, sp. nov.	Indomasonaphis rumicis
		Apterous viviparous females (n = 2)	Apterous viviparous females (n = 10)	Apterous viviparous females (n = 2)
Length (mm)	Body length	4.419–4.450	5.147–6.367	3.375–3.956
	Body width	1.847–1.966	1.931–2.66	1.708–2.068
	Antennae	6.125 – 6.677	3.899–5.891	4.764
	Ant. I	0.311–0.324	0.257–0.328	0.256–0.282
	Ant. II	0.152–0.153	0.150–0.182	0.138–0.145
	Ant. III	1.393–1.567	1.099–1.469	1.104–1.127
	Ant. IV	1.144–1.343	0.891–1.143	0.851–0.896
	Ant. V	1.004–1.107	0.718–0.927	0.652–0.704
	Ant. VIb	0.331–0.345	0.315–0.376	0.193–0.200
	PT	1.776 – 1.852	1.483–1.519	1.436
	URS	0.218–0.241	0.185–0.209	0.153–0.178
	Hind femur	1.914–2.132	1.970–2.247	1.257–1.514
	Hind tibia	3.689–3.962	3.375–3.812	2.671–2.853
	2 HT	0.191–0.192	0.195–0.224	0.173–0.173
	SIPH	1.095 – 1.252	0.642–0.793	0.605–0.672
	BW SIPH	0.124–0.127	0.102–0.166	0.078–0.086
	SW SIPH	0.176–0.216	0.099–0.127	0.125–0.157
	DW SIPH	0.080–0.086	0.085–0.100	0.065–0.077
	Cauda	0.557 – 0.628	0.474–0.583	0.331–0.343
	BW cauda	0.178–0.217	0.209–0.314	0.191–0.198
	Ant. III BD	0.052–0.055	0.051–0.063	0.044–0.045
	MW hind tibia	0.062–0.067	0.075–0.098	0.061–0.072
	Cephalic setae	0.083–0.105	0.090–0.121	0.054–0.072
	Setae on tergite I	0.082–0.114	0.089–0.127	0.034–0.035
	Setae on tergite VIII	0.142–0.143	0.092–0.143	0.060–0.064
	Setae on Ant. III	0.042–0.043	0.048–0.071	0.019–0.029
	Setae on hind tibia	0.074–0.077	0.088–0.134	0.057–0.076
Ratio	Body length / Body width	2.25–2.41	2.26–2.67	1.91–1.98
	Whole antennae / Body	1.39–1.50	0.66–0.99	1.20
	Hind femur / Ant. III	1.36–1.37	1.34–1.84	1.12–1.37
	Hind tibia / Body	0.84–0.89	0.60–0.69	0.68–0.85
	Ant. I / Ant. III	0.20–0.23	0.20–0.26	0.23–0.26
	Ant. II / Ant. III	0.10–0.11	0.11–0.15	0.12–0.13
	Ant. IV / Ant. III	0.82–0.86	0.73–0.85	0.77–0.80
	Ant. V / Ant. III	0.71–0.72	0.56–0.69	0.59–0.63
	Ant. VIb / Ant. III	0.22–0.24	0.22–0.32	0.17–0.18
	PT / Ant. III	1.18–1.28	1.04–1.38	1.27
	PT / Ant. VIb	5.36–5.37	3.96–4.71	7.18
	URS / BW URS	3.25–3.49	2.03–2.55	1.61–2.78
	URS / 2 HT	1.14–1.26	0.89–1.04	0.88
	Cauda / BW cauda	2.89–3.13	1.57–2.29	1.67–1.80
	Cephalic setae / Ant. III BD	1.51–2.02	1.48–2.04	1.20–1.64
	Setae on tergite I / Ant. III BD	1.10–1.16	1.56–2.19	0.77–0.78
	Setae on tergite VIII / Ant. III BD	2.60–2.73	1.70–2.47	1.33–1.45
	Setae on ANT. III / ANT. III BD	0.76–0.83	0.80–1.32	0.42–0.66
	Setae on hind tibia / MW hind tibia	1.10–1.24	0.98–1.55	0.93–1.06
	SIPH / Body	0.25–0.28	0.12–0.14	0.17–0.18
	SIPH / Cauda	1.97–1.99	1.22–1.48	1.83–1.96
	SIPH / Ant. III	0.79–0.80	0.47–0.58	0.55–0.60
	SIPH / BW SIPH	8.62–10.10	4.64–6.29	7.04–8.62
	SIPH / SW SIPH	5.80–6.22	5.54–6.55	4.28–4.84
	SIPH / DW SIPH	13.69–14.56	6.77–8.55	8.73–9.31