Icerya aegyptiaca (Douglas)

Moghaddam, Masumeh & Watson, Gillian W., 2024, The Scale Insects Of Iran (Hemiptera: Coccomorpha) Part 3 The Soft Scales (Coccidae) And Other Families, Zootaxa 5542 (1), pp. 1-202 : 167

Icerya aegyptiaca (Douglas)

( Fig. 81 , Plate 5 A-1 and A-2, distribution map Fig. 90K )

Crossotosoma aegyptiacum Douglas, 1890a: 79 . Icerya aegyptiacum (Douglas) ; Riley & Howard 1890: 256. Icerya aegyptiaca (Douglas) ; Maskell 1893: 247.

Field characteristics: Live adult female orange-red, antennae and legs black, covered in sculpted white wax; margin with a fringe of elongate wax processes, these processes broader and shorter on head and thorax, those on abdomen narrower and more elongate, covering ovisac, giving it a fluted appearance.

Microscopic diagnosis (based on Unruh & Gullan 2008b): Slide-mounted adult female oval, covered in hair-like and flagellate setae that take up red stain. Antennae each with 10 or 11 segments. Derm near atrial opening of thoracic spiracles with simple multilocular disc-pores, each with bilocular center and 6–8 outer loculi (not shown in Fig. 80 ). Abdominal spiracles numbering 3 pairs. Cicatrice single, conspicuous, situated posterior to vulva. Anal opening surrounded by a group of long setae and oval pores, each with a bilocular center and 8–12 outer loculi. Vulva surrounded by multilocular disc-pores, each with 13–24 outer loculi; these pores forming medial to submedial band across 1 or 2 abdominal segments anterior to vulvar opening (abdominal segment VI and sometimes V). Ovisac band of simple multilocular disc-pores, 2–4 pores wide, each pore with bilocular / trilocular (sometimes quadrilocular) center and 6–8 outer loculi. Simple multilocular disc-pores, similar to pores in ovisac band, each with a bilocular or trilocular center and 6–8 outer loculi, forming marginal clusters and covering derm on dorsal surface around other dorsal pores. Open center pores absent.

Distribution: Icerya aegyptiaca is quite cosmopolitan, being known from 29 countries in the Afrotropical, Oriental and Palaearctic regions ( García Morales et al. 2016); in Iran, it has been recorded from Sistan & Balouchestan province (Moghaddam et al. 2015).

Host-plants: The species is highly polyphagous, having been recorded on host-plants belonging to 65 families ( García Morales et al. 2016). In Iran, it has been found on Mangifera indica ( Anacardiaceae ) (Moghaddam et al. 2015).

Economic importance: Currently, the damage caused by I. aegyptiaca in Iran is limited and no other infested localities have been reported so far.

Natural enemies: None recorded in Iran.

Figures

PLATE 5. Monophlebidae continued: A-1 and A-2, Icerya aegyptiaca (Douglas); B-1 and B-2, Icerya purchasi Maskell. Ortheziidae: C, Orthezia urticae (Linnaeus). Phoenicococcidae: D, Phoenicococcus marlatti Cockerell.

FIGURE 80. Adult female of Gueriniella serratulae Fabricius, based on Unruh & Gullan (2008), page 31, fig. 11.

FIGURE 81. Adult female of Icerya aegyptiaca (Douglas), based on Williams & Watson (1990), page 20, fig. 3.

FIGURE 90. Distribution maps of scale insect species in Iran covered in this work. A, Drosicha turkestanica Archangelskaya; B, Ericerus farsicus Moghaddam & Faghih; C, Eriopeltis festucae (Boyer de Fonscolombe); D, Eulecanium ficiphilum Borchsenius; E, Eulecanium rugulosum (Archangelskaya); F, Eulecanium tiliae (Linnaeus); G, Exaeretopus tritici Williams; H, Gossyparia spuria (Modeer); I, Gueriniella serratulae (Fabricius); J, Hadzibejliaspis stipae (Hadzibejli); K, Icerya aegyptiaca (Douglas); L, Icerya purchasi Maskell.