Review of the family Coccidae (Hemiptera: Coccomorpha) in Laos
Author
Choi, Jinyeong
Author
Soysouvanh, Pheophanh
Author
Lee, Seunghwan
Author
Hong, Ki-Jeong
text
Zootaxa
2018
2018-08-17
4460
1
1
62
journal article
29001
10.11646/zootaXa.4460.1.1
84973bd6-9d66-4172-8f50-2a482edccf2a
1175-5326
1459506
DB841017-698F-4D44-A633-461D350DC984
Pulvinaria floccifera
(
Westwood, 1870
)
(
Figs 39
,
40
)
Coccus flocciferus
Westwood, 1870
: 308
.
FIGURE 39.
Pulvinaria floccifera
(Westwood, 1870)
. A, female in life; B, slide-mounted adult female; C, stigmatic spines; D, ventral tubular ducts on submarginal area of abdomen. Scale lines for B = 0.5 mm; C = 50 µm; D = 10 µm.
FIGURE 40.
Pulvinaria floccifera
(Westwood, 1870)
, adult female, from Tanaka & Amano (2007). A, dorsal seta; B, dorsal tubercle; C, dorsal microduct; D, marginal setae; E, stigmatic spines; F, preopercular pore; G, anal plates; H, multilocular discpore; I, leg; J1-3, ventral tubular ducts; K, ventral microduct; L, spiracular disc-pore; M, antenna.
Diagnosis.
Dorsal derm without polygonal reticulations; tubular ducts absent; duct tubercles present (
Fig. 40B
). Marginal setae with pointed or frayed apices (
Fig. 40D
). Stigmatic clefts distinct, each containing 3 stigmatic spines (
Figs 39C
,
40E
). Venter with multilocular disc-pores usually each with 7 loculi, mainly present around vulvar area, a few pores also present laterad of each meta-, meso- and procoxa (
Fig. 40H
); tubular ducts of
3 types
:
type
I each with a broad inner ductule, mainly present on medial area of head, thorax and anterior abdomen,
type
II each with a narrow inner ductule, mainly present on medial area of posterior abdomen and submarginal area of abdomen, and
type
III each with a filamentous inner ductule, present on submarginal area (
Figs 39D
,
40J
); antenna 6 to 8 segmented (
Fig. 40M
) (partially adopted from
Tanaka & Amano 2007
).
Material examined.
2 ♀♀, LAOS, Pakngum Dist., Vientiane Capital,
28.viii.2016
, coll. P.P. Soysouvanh, on
Centotheca lappacea
(L.) Desv. (
Poaceae
).
Hosts.
Polyphagous. According to
García Morales
et al
. (2016)
,
P. floccifera
has been recorded from plants belonging to 50 genera in 35 families.
Distribution.
All zoogeographical regions;
Oriental
Region
(
India
and
Vietnam
) (
Hodgson & Henderson 2000
;
García Morales
et al
. 2016
);
Laos
(new country record).
Economic importance.
Łagowska
et al.
(2017)
described
P. floccifera
as a serious pest of ornamental plants in Europe; and in
Iran
, it is considered to be a serious pest of citrus (
Naeimamini
et al
. 2014
) and tea (
Camellia sinensis
) (
Hallaji-Sani
et al
. 2012
).
Remarks.
Pulvinaria floccifera
is very similar to
P. urbicola
Cockerell
, but
Tanaka & Amano (2007)
separated the species based on the presence or absence of dermal areolations and the number of preopercular pores:
P. floccifera
lacks dermal areolations and has 48–83 preopercular pores, whereas
P. urbicola
has dermal areolations and only 4–27 preopercular pores.