Neogreenia osmanthus

Zheng, Xinyi & Wu, San’An, 2023, Morphology of all the developmental stages of Neogreenia osmanthus (Yang & Hu) (Hemiptera: Coccomorpha), and transfer of the genera Neogreenia MacGillivray and Jansenus Foldi to the family Qinococcidae, Zootaxa 5244 (2), pp. 101-122 : 117-118

Key to all developmental stages of Neogreenia osmanthus

1(0) Legs present; antennae long and segmented................................................................ 2

- Legs absent or represented only by elongate seta; antennae much reduced, plate-like............................... 6

2(1) Antenna 7 segmented; abdominal spiracles numbering only 1 pair................................ first-instar nymph

- Antenna 9 or 10 segmented; abdominal spiracles numbering 8 pairs............................................. 3

3(2) Antenna 9 segmented; posteriormost 2 pairs of abdominal spiracles each with pores in atrium..... third-instar male nymph

- Antenna 10 segmented; posteriormost 2 pairs of abdominal spiracles each without pores in atrium, or abdominal spiracles absent.............................................................................................. 4

4(3) With wings or wing buds; vulva and mouthparts absent....................................................... 5

- Without wings or wing buds; vulva and mouthparts present.......................................... adult female

5(4) Wings fully developed; legs each with a claw....................................................... adult male

- Wings in bud state; legs each without a claw............................................................. pupa

6(1) Anteriormost 5 pairs of abdominal spiracles each with pores in atrium; each body segment with only 3–5 multilocular disc pores near each margin................................................................ second-instar nymph

- Anteriormost 6 pairs of abdominal spiracles each with pores in atrium; each body segment with more than 20 multilocular disc pores near each margin............................................................ third-instar female nymph