Pulvinaria polygonata Cockerell, 1905

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: 46-48

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Pulvinaria polygonata Cockerell, 1905


Pulvinaria polygonata Cockerell, 1905  

( Figs 41 View FIGURE 41 , 42 View FIGURE 42 )

Pulvinaria polygonata Cockerell 1905: 131   .

Diagnosis. Dorsal derm with polygonal reticulations; tubular ducts present, but small ( Fig. 42E View FIGURE 42 ); duct tubercles present ( Fig. 42D View FIGURE 42 ). Marginal setae bluntly spinose, mostly with fimbriate apices ( Fig. 42A View FIGURE 42 ). Stigmatic clefts distinct, each containing 4 or 5 stigmatic spines ( Figs 41C View FIGURE 41 , 42C View FIGURE 42 ). Venter with multilocular disc-pores usually each with 8 loculi, abundant around vulvar area, a few pores also present laterad of meta- and mesocoxa ( Fig. 42I View FIGURE 42 ); tubular ducts of 3 types: type I each with a broad inner ductule, present on medial area of head, thorax and anterior abdomen; type II each with a narrow inner ductule, present on medial and inner submarginal area of head, thorax and abdomen; and type III each with a filamentous inner ductule, present in submarginal areas ( Figs 41D View FIGURE 41 , 42J View FIGURE 42 ); antenna 8 segmented (partially adopted from Williams & Watson, 1990).

Material examined. 10 ♀♀, LAOS, Kham Dist. , Xiangkhoang Prov., 2.v.2015, coll. J.Y. Choi, on Citrus sp. ( Rutaceae   ).  

Hosts. Polyphagous. According to García Morales et al. (2016), P. polygonata   has been recorded from plants belonging to 10 genera in 7 families. In Laos, it has been found on Ficus   sp. ( Moraceae   ) ( Suh & Bombay 2015).

Distribution. Mainly known from Australian, Oriental ( Bangladesh, India, Laos, Philippines, Sri Lanka, Taiwan and Vietnam) and Palearctic Regions ( Suh & Bombay 2015; García Morales et al. 2016).

Economic importance. Mani & Krishnamoorthy (1998) considered P. polygonata   to be a serious pest of mango ( Mangifera indica   ) in India. In addition, Williams & Watson (1990) noted that P. polygonata   could be a potential pest of citrus because of its host preferences. The species is frequently intercepted at U.S. ports ( Miller & Miller 2003).

Remarks. Pulvinaria polygonata   closely resembles P. aurantii Cockerell   , but is easily separated by the number of stigmatic spines in each spiracular cleft: P. polygonata   has 4–5, whereas P. aurantii   has only 3 ( Takahashi 1955b).














Pulvinaria polygonata Cockerell, 1905

Choi, Jinyeong, Soysouvanh, Pheophanh, Lee, Seunghwan & Hong, Ki-Jeong 2018

Pulvinaria polygonata Cockerell 1905 : 131

Cockerell 1905 : 131