Iceryini

Unruh, Corinne M. & Gullan, Penny J., 2008, Identification guide to species in the scale insect tribe Iceryini (Coccoidea: Monophlebidae), Zootaxa 1803 (1), pp. 1-106 : 22

Key to the adult females of the genera of Iceryini

1 Abdominal spiracles in 4 pairs .................................................................................................... Gueriniella

- Abdominal spiracles in 2 or 3 pairs ............................................................................................................ 2

2 Derm densely covered with spiniform setae; flagellate and hair-like setae present but scattered, scant. With more than 30 ventral cicatrices forming 2 semicircles on abdomen .................................. Echinicerya

- Derm lacking spiniform setae; with only flagellate and hair-like setae present. Ventral cicatrices numbering 1–13 in a single transverse row or semicircle ....................................................................................... 3

3 Compound multilocular pores present.................................................................................. Gigantococcus

- Compound multilocular pores absent .......................................................................................................... 4

4 Open-centre pores present. Abdominal spiracles in 2 or 3 pairs ................................................................. 5

- Open-centre pores absent. Abdominal spiracles in 3 pairs only.................................................................. 6

5 Abdominal spiracles in 3 pairs .................................................................................................. Icerya (part)

- Abdominal spiracles in 2 pairs ..........................................................................“ Pericerya ” group of Icerya

6 Ovisac band, if present, with or without dense mass of setae. If lacking setae in ovisac band, head and thorax with dorsal submedial and ventral marginal clusters of small pores, each with a cruciform or starshaped centre. Marsupial band, if present, made of pores each with a bilocular or trilocular centre, together forming a completely sclerotized circle. If ovisac or marsupium not formed, pores on dorsum each with mostly a bilocular or trilocular centre that lacks a tongue-like projection. Simple multilocular pores on dorsal surface without a very thickened outer rim. Pores with a quinquelocular centre absent. Tubercles present or absent. Cicatrices numbering 1 to 13 ........................................................ Crypticerya

- Ovisac band, if present, without a dense mass of setae. Head and thorax without clusters of small pores each with a star-shaped centre. Marsupial band, if present, made of pores each with a bilocular centre only, not forming a completely sclerotized circle. If ovisac or marsupium not formed, each pore on dorsum with a bilocular or trilocular centre, or with a trilocular centre with a tongue-like projection. Simple multilocular pores on dorsal surface with or without a very thickened outer rim. Pores with a quinquelocular centre absent or present. Tubercles absent. Cicatrices numbering 1 or 3 only ................... Icerya (part)