Saissetia oleae ( Olivier, 1791 )

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 : 54-57

Saissetia oleae ( Olivier, 1791)

( Figs 51 , 52 )

Coccus oleae Olivier 1791: 95 .

Diagnosis. Marginal setae tending towards 2 sizes present, mostly with pointed or slightly fimbriate apices ( Fig. 52L ); with 5–13 present between anterior and posterior stigmatic clefts on each side ( Fig. 51E ). Venter with multilocular disc-pores abundant around vulvar area, plus a few pores present laterad of metacoxa ( Fig. 52G ); tubular ducts each with a narrow inner ductule, present in submarginal areas ( Figs 51C , 52H ) (partially adopted from Hodgson 2000).

Material examined. 10 ♀♀, LAOS, Phou Khao Khuay National Bio-Diversity Conservation Area,

Thaphabath Dist., Bolikhamsai Prov., 1.v.2015, coll. J.Y. Choi, on Alstonia sp. ( Apocynaceae ).

Hosts. Polyphagous. According to García Morales et al. (2016), S. oleae has been recorded from plants belonging to 212 genera in 75 families.

Distribution. All zoogeographical regions; Oriental Region ( India, Indonesia, Malaysia, Philippines, Sri Lanka, Taiwan, Thailand, and Vietnam) ( García Morales et al. 2016); Laos (new country record).

Economic importance. Saissetia oleae has been described as an important pest of olive ( Olea europaea ) in California ( Smith 1921), Brazil ( Prado et al. 2015), Greece ( Paraskakis et al. 1980), Italy ( Cozzi et al. 2000), Israel ( Argov & Rössler 1993) and Morocco ( Ouguas & Chemseddine 2011); it was also considered as a pest of citrus in California ( Lampson & Morse 1992) and Israel (Blumberg & Swirski 1997).

Remarks. Saissetia oleae appears closely related to S. miranda (Cockerell & Parrott) . For a comparison, see the remarks section for S. miranda above. Saissetia oleae also resembles S. neglecta (De Lotto) , but differs by having marginal setae with pointed or slightly fimbriate apices and legs with tibio-tarsal articulatory scleroses, whereas S. neglecta has expanded and strongly fimbirate marginal setae, and legs without tibio-tarsal articulatory scleroses ( Hamon & Williams 1984; Hodgson 2000).

Figures

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.