Saissetia Déplanche, 1859

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 : 52

Genus Saissetia Déplanche, 1859

Type species: Lecanium coffeae Walker, 1852 , proposed by Ben-Dov (1989) and ruled by Opinion 1627 (1991).

Diagnosis. In life, dorsum of young females with distinct H-shaped ridge ( Figs 49A , 51A ) but in mature, convex specimens this ridge is lost. On microscope slide, dorsum with anal plates each with a discal seta and 3 apical setae ( Figs 47D , 48G , 49D , 50G , 51D , 52F ); dorsal setae spinose ( Figs 48D , 50D , 52A ); and dorsal tubercles present ( Figs 48B , 50B , 52B ). Marginal setae mostly with bifid or fimbriate apices ( Figs 48F , 50F ). Venter with tubular ducts present in submarginal areas ( Figs 47C , 48L , 49C , 50L , 51C , 52H ); legs each with a tibio-tarsal articulatory sclerosis ( Figs 48J , 50J , 52I ) (except in S. neglecta ) ( Hodgson 1994; Choi & Lee 2017b).

Remarks. Saissetia consists of 44 described species which are known from all zoogeographical regions ( García Morales et al. 2016). Adult females of the genus are easily recognized by each anal plate having a discal seta and ventral tubular ducts present in a submarginal band ( Hodgson 1994).

Figures

FIGURE 47. Saissetia coffeae (Walker, 1852). A, population of females in life; B, slide-mounted adult female; C, ventral tubular ducts on submarginal area of abdomen; D, anal plates. Scale lines for B = 0.5 mm; C = 10 µm; D = 100 µm.

FIGURE 48. Saissetia coffeae (Walker, 1852), adult female, from Choi & Lee (2017b). A, dorsal microduct; B, dorsal tubercle; C, dermal areolations; D, dorsal seta; E, stigmatic spines; F1-4, marginal setae; G, anal plates; H, preopercular pore; I, multilocular disc-pores; J, leg; K, ventral seta; L1-3, ventral tubular ducts; M, spiracular disc-pores; N, ventral microduct; O, antenna.

FIGURE 49. Saissetia miranda (Cockerell & Parrott in Cockerell, 1899). A, female in life; B, slide-mounted adult female; C, ventral tubular ducts on submarginal area of abdomen; D, anal plates; E, marginal setae between stigmatic spines. Scale lines for B = 0.5 mm; C = 10 µm; D = 100 µm; E = 50 µm.

FIGURE 50. Saissetia miranda (Cockerell & Parrott in Cockerell, 1899), adult female, from Choi & Lee (2017b). A, dorsal microduct; B, dorsal tubercle; C, dermal areolations; D, dorsal seta; E, stigmatic spines; F1-4, marginal setae; G, anal plates; H, preopercular pore; I, multilocular disc-pores; J, leg; K, ventral seta; L, ventral tubular duct; M, spiracular disc-pore; N, ventral microduct; O, antenna.

FIGURE 51. Saissetia oleae (Olivier, 1791). A, population of females in life; B, slide-mounted adult female; C, ventral tubular ducts on submarginal area of abdomen; D, anal plates; E, marginal setae between stigmatic spines. Scale lines for B = 0.5 mm; C = 10 µm; D = 100 µm; E = 50 µm.

FIGURE 52. Saissetia oleae (Olivier, 1791), adult female, from Williams & Watson (1990). A, dorsal seta; B, dorsal tubercle; C, dorsal microduct; D, simple pore; E, preopercular pore; F, anal plates; G, multilocular disc-pore; H, ventral tubular duct; I, leg; J, ventral microduct; K, spiracular disc-pore; L, stigmatic spines and marginal setae.