Parasaissetia Takahashi, 1955a

Choi, Jinyeong, Soysouvanh, Pheophanh, Lee, Seunghwan & Hong, Ki-Jeong, 2018, Review of the family Coccidae (Hemiptera: Coccomorpha) in Laos, Zootaxa 4460 (1), pp. 1-62 : 50

Genus Parasaissetia Takahashi, 1955a

Type species: Lecanium nigrum Nietner, 1861 , by original designation.

Diagnosis. Dorsum with derm with many polygonal reticulations ( Fig. 45C ); setae cylindrical ( Fig. 46C ); and duct tubercles ( Fig. 46A ) and pocket-like sclerotisations present. Marginal setae mostly with fimbriate apices ( Fig. 46K ). Venter with tubular ducts present in submarginal areas ( Fig. 46G ); legs without tibio-tarsal articulatory scleroses ( Fig. 46H ) ( Hodgson 1994; Choi & Lee 2017b).

Remarks. Parasiassetia comprises 5 described species which are restricted to Côte d’Ivoire, Comoros, Kenya, Madagascar, Rénuion, South Africa, Tanzania and Uganda except for one cosmopolitan species, P. nigra . The adult females are easily distinguished from other species in Laos by having dorsal polygonal reticulations and dorsal setae with blunt apices ( Hodgson 1994; García Morales et al. 2016).

Figures

FIGURE 45. Parasaissetia nigra (Nietner, 1861). A, population of females in life; B, slide-mounted adult female; C, polygonal reticulations; D, anal plates. Scale lines for B = 0.5 mm; C = 50 µm; D = 100 µm.

FIGURE 46. Parasaissetia nigra (Nietner, 1861), adult female, from Williams & Watson (1990). A, dorsal tubercle; B, dorsal microduct; C, dorsal seta; D, preopercular pore; E, anal plates; F, multilocular disc-pore; G, ventral tubular duct; H, leg; I, ventral microduct; J, spiracular disc-pore; K, stigmatic spines and marginal setae.