A review of the Margarodidae sensu stricto (Hemiptera: Coccomorpha) in China, with descriptions of three new species Author Zheng, Xinyi 0000-0002-7396-7488 The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China. Author Wu, San’An 0000-0002-9671-9401 The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China. sananwu@bjfu.edu.cn text Zootaxa 2024 2024-09-10 5506 4 451 500 http://dx.doi.org/10.11646/zootaxa.5506.4.1 journal article 10.11646/zootaxa.5506.4.1 1175-5326 13747303 B1D3C8F1-DA52-477A-93B9-A0B7F054866D Key to genera and species of adult female Margarodidae from China 1(0) Abdominal spiracles numbering 8 pairs (genus Neomargarodes )................................................ 2 - Abdominal spiracles numbering fewer than 8 pairs.......................................................... 5 2(1) Antenna with segments II and III fused together................................................ N. niger (Green) - Antenna with segments II and III separate................................................................. 3 3(2) Foreleg claw with basal prominent heel angular.............................. N. chenopodium Zheng & Wu , sp. nov. - Foreleg claw with basal prominent heel swollen and rounded ................................................... 4 4(3) Multilocular disc-pores each with a bright central loculus; disc-pores on abdominal sternites I–IV few, forming transverse segmental bands only 1 or 2 pores wide. Feeding mainly on Fabaceae ............................. .. N. gossypii Yang - Multilocular disc-pores each without a bright central loculus; disc-pores on abdominal sternites I–IV numerous, forming transverse segmental bands 3–6 pores wide. Feeding on Cucurbitaceae and Amaranthaceae ...... N. cucurbitae Tang & Hao 5(1) Abdominal spiracles numbering 6 or 7 pairs (genus Margarodes ). Body with many spines on thorax and abdomen. Foreleg claw sometimes bifurcate.................................................................. M. sinensis (Silvestri) - Abdominal spiracles numbering 2 pairs or absent. Body without spines. Foreleg claw acute, never bifurcate (genus Porphyrophora )...................................................................................... 6 6(5) Long hair-like setae few and relatively short (each less than 100 μm long); each abdominal tergite with transverse segmental band of setae only 1 or 2 setae wide..................................... P. neimonggolensis Zheng & Wu , sp. nov. - Long hair-like setae numerous and long (each more than 200 μm long); each abdominal tergite with transverse segmental band of setae 2–9 setae wide................................................................................ 7 7(6) Antenna with 10 segments. Multilocular disc-pores each without a bright central loculus... P. violaceae Matesova & Jashenko - Antenna with 9 segments or fewer. Multilocular disc-pores each with a bright central loculus......................... 8 8(7) Abdominal tergites each with transverse segmental band of setae about 6–9 setae wide. Thoracic spiracle with 7–22 spiracular disc-pores.................................................................... P. ningxiana Yang , stat. rest. - Abdominal tergites each with transverse segmental band of setae about 2–6 setae wide. Thoracic spiracle with 4–6 spiracular disc-pores........................................................................................... 9 9(8) Abdominal sternites each with transverse band of setae only 2 or 3 setae wide.Antenna with 7–9 (mostly 7) segments. Sclerotized plate around eyespot with a reticulated texture............................................ P. polonica (Linnaeus) - Abdominal sternites each with transverse band of setae about 4–6 setae wide. Antenna with 9 segments. Sclerotized plate around eyespot smooth...................................................... P. ejinensis Zheng & Wu , sp. nov.