Megapulvinaria Yang, 1982

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 : 40

Genus Megapulvinaria Yang, 1982

Type species: Pulvinaria maxima Green, 1904a , by original designation.

Diagnosis. Dorsum with anal plates each with 1 spinose discal seta, and 2 spinose and/or truncate setae on inner margin and apex ( Figs 35D , 36G ); tubular ducts present or absent ( Fig. 36F ); duct tubercles absent. Marginal setae stout and truncate, with 2 types (one long and slender; the other shorter or same length and thicker) ( Figs 35C , 36B ). Stigmatic clefts shallow to deep, each containing 3–12 stigmatic spines ( Fig. 36C ). Venter with 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 abdomen; type III: each with a filamentous inner ductule, present in submarginal areas) ( Fig. 36J ); antenna 7 to 9 segmented ( Fig. 36M ); legs each with tibio-tarsal articulatory scleroses ( Fig. 36I ) ( Hodgson 1994; Wang & Feng 2012b).

Remarks. Megapulvinaria contains 5 described species that are mainly distributed in the Oriental and Australian regions ( García Morales et al. 2016). The genus is related to Pulvinarisca , but is easily differentiated from the latter by possessing 2 types of marginal setae, and each anal plate having 1 discal seta and 2 spinose and/ or truncate setae ( Hodgson 1994); in contrast, Pulvinarisca has only 1 type of marginal seta and each anal plate has 3 spinose setae only ( Hodgson 1994; Wang & Feng 2012b).

Figures

FIGURE 35. Megapulvinaria maxima (Green, 1904). A, population of females in life; B, slide-mounted adult female; C, marginal setae; D, anal plates. Scale lines for B = 0.5 mm; C = 50 µm; D = 100 µm.

FIGURE 36. Megapulvinaria maxima (Green, 1904), adult female, from Wang & Feng (2012). A, dorsal seta; B1-2, marginal setae; C, stigmatic spine; D, dorsal microduct; E, simple pore; F, dorsal tubular duct; G, anal plates; H, multilocular disc-pore; I, leg; J1-3, ventral tubular ducts; K, spiracular disc-pore; L, ventral microduct; M, antenna.