Neogreenia MacGillivray

Zheng, Xinyi, Watson, Gillian W., Zhang, Jiangtao, Tan, Zhixiang & Wu, San’An, 2024, A review of the genus Neogreenia MacGillivray (Hemiptera: Coccomorpha: Qinococcidae) with descriptions of two new species, Zootaxa 5418 (5), pp. 401-441 : 438-439

Key to all developmental stages of Neogreenia MacGillivray

1(0) Wings or wing buds present............................................................................. 2

- Wings or wing buds absent.............................................................................. 3

2(1) Wings fully developed; claws present; antenna with numerous long and hair-like setae on all segments.......... adult male

- Wings in bud state; claws absent; proximal 2 segments of antenna with a few short and hair-like setae, more distal segments all without setae.................................................................................. male pupa

3(1) Legs present; antenna long and segmented................................................................. 4

- Legs absent; antenna much reduced, plate-like.............................................................. 6

4(3) Antenna 7 segmented; abdominal spiracles numbering only 1 pair.................................. first-instar nymph

- Antenna 9 or 10 segmented; abdominal spiracles numbering 8 pairs............................................. 5

5(4) Antenna 10 segmented; anterior 6 pairs of abdominal spiracles each having pores in atrium; vulva and mouthparts present............................................................................................. adult female

- Antenna 9 segmented; anterior 5 pairs of abdominal spiracles each lacking pores in atrium; vulva and mouthparts absent............................................................................ third-instar male nymph (pre-pupa)

6(3) Anterior 5 pairs of abdominal spiracles each with pores in atrium............................... second-instar nymph

- Anterior 6 pairs of abdominal spiracles each with pores in atrium........................... third-instar female nymph