The genera Coccus and Prococcus (Hemiptera: Coccomorpha: Coccidae) in China with two new combinations and descriptions of two new species
Author
Cao, Tong
0000-0002-6738-9976
Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & amycaotong @ 163. com; https: // orcid. org / 0000 - 0002 - 6738 - 9976
Author
Watson, Gillian W.
Department of Life Sciences, the Natural History Museum, London, SW 7 5 BD, U. K.
Author
Hodgson, Chris J.
0000-0002-9073-1485
Department of Biodiversity and Biological Systematics, The National Museum of Wales, Cardiff, Wales, CF 10 3 NP, U. K. hodgsoncj @ cardiff. ac. uk; https: // orcid. org / 0000 - 0002 - 9073 - 1485
hodgsoncj@cardiff.ac.uk
Author
Jing, Qi
0000-0002-7865-7761
Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & 2018050190 @ nwafu. edu. cn; https: // orcid. org / 0000 - 0002 - 7865 - 7761
2018050190@nwafu.edu.cn
Author
Feng, Ji-Nian
0000-0002-3994-1348
Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & jinianf @ nwsuaf. edu. cn; https: // orcid. org / 0000 - 0002 - 3994 - 1348
jinianf@nwsuaf.edu.cn
text
Zootaxa
2022
2022-01-05
5087
1
112
128
journal article
2764
10.11646/zootaxa.5087.1.5
fc6ee7f7-704f-4356-b63d-be4ff718763a
1175-5326
5819774
40518AD3-6B53-408C-919D-466C81038C6F
Coccus nanningensis
Cao & Feng
,
sp. n.
(
Figs 4
and
5
)
Material examined.
Holotype
adult
♀
:
CHINA
,
Guangxi Province
: label:
Nanning
, Guangxi Province, China / Guangxi University of Finance and Economics /
10.viii.2019
on
Ficus carica
(Moraceae)
/ Cao Tong (
NWAFU
) /
Coccus nanningensis
Cao & Feng
; holotype on the left side, circled
.
Paratypes
♀♀
:
1 adult
female on the same slide with
holotype
, in the lower right corner, plus 1 slide with
2 adult
females, and another 2 slides each with
3 adult
females, collection data same as
holotype
(
NWAFU
). All the slide labels (
Fig. 5
) are written in Chinese
.
Description
(data taken from all
10 specimens
)
Adult female in life.
Body oval to subcircular, yellowish-brown to pale brown, with symmetrical dark spot present on dorsum.
Slide-mounted adult female.
Body elongate oval to broadly oval; 1.5–2.0 mm long, 1.0–
1.5 mm
wide. Anal cleft approximately 1/7–1/6 of body length.
Dorsum.
Derm with small circular clear cell-like areolations distributed over entire dorsum, becoming well developed on older females. Dorsal microducts present singly in areolations. Setae setose, fine and pointed, each with a well-developed basal socket, scattered, each about 8–13 μm long. Submarginal tubercles present on anterior half of body only (with 1 or 2 on each side, numbering 0‒2 between anterior stigmatic clefts on head, 0 or 1 between anterior and posterior stigmatic clefts on each side), absent from abdominal region. Dorsal tubular ducts absent. Preopercular pores absent. Anal plates each triangular, together quadrate, 111–144 μm long, 82–92 μm wide, width of anal plates together slightly longer than their length, anterolateral margin 108–114 μm long, posterolateral margin 109–119 μm long, length of posterior margin almost equal to anterior margin, outer angle slightly obtuse; each plate with a well-developed supporting bar, and a robust discal seta with a pointed apex, 41–57 μm long; also 3 apical setae, each 15–17 μm long.Anogenital fold with 3 pairs of anterior margin setae, each 51–63 μm long, and 3 pairs of lateral marginal setae, each 41–68 μm long. Anal ring subcircular, bearing 8 anal ring setae. Eyespots not found.
Margin.
Marginal setae lengths variable, 22–67 μm long, in 1 or 2 rows, with well-developed basal sockets, structure highly varied, mostly rather long and extremely robust, but some with apices branched or bifurcate, others either conical, straight or curved with pointed apices (hard to distinguish from the stigmatic spine), or with apices swollen, sagittate or spatulate, or setose, extremely slender, fine and sharply pointed; with 39–45 setae between anterior stigmatic clefts, 10–12 setae on each side between anterior and posterior stigmatic clefts, and 22–25 setae between the posterior stigmatic cleft and anal cleft. Stigmatic clefts shallow but distinct, each cleft containing 3 slender, tapering and bluntly spinose stigmatic spines, with well-developed basal sockets; median spine longest, 108–126 μm long, about 2.5–6.5 times as long as a lateral spine, each 21–47 μm long; (
one specimen
with one cleft containing 1 stigmatic spine, this only as long as a normal lateral spine).
Venter.
Derm membranous. Antennae each with 7 segments, total antennal length 355–383 μm, segment III longest, 79–83 μm long; lengths of other segments in μm: I, 46–54; II, 42–45; IV, 54–71; V, 33–37; VI, 32–39; and VII, 61–81. Setal distribution on antenna: scape 3; pedicel 2; III, 0; IV, 2 or 3; V & VI, each segment with 1 fleshy seta and 1 hair-like seta; VII with 3 fleshy setae, 3 stiff setae and 2 hair-like setae. Inter-antennal setae numbering 3 or 4 pairs, comprising 1 pair of long outer setae, each 64–66 μm long, and 2 or 3 pairs of short inner setae, each 11–15 μm long. Long pregenital setae numbering 2 pairs (
1 specimen
with 3 pregenital setae on one side but other side with only 2, a total of 5 setae on 3 segments), each seta 79–83 μm long. Other ventral setae setose, fine, sparsely distributed over entire venter, each seta 9–17 μm long. Submarginal setae not observed. Legs well developed, each with a tibio-tarsal articulation but no articulatory sclerosis; tibia 115–122 μm long, longer than tarsus; tarsus 85–97 μm long. Claw without a denticle; claw digitules similar, each broad and expanded at apex, about 30–31 μm long. Tarsal digitules longer than claw digitules, slender, knobbed, expanded at apex, each about 44–50 μm long. Spiracles normal, without sclerotic plates. Spiracular disc pores mostly each with 5 loculi in outer ring, occasionally 4 or 6; spiracular pore bands narrow, each 2 or 3 rows wide. Anterior spiracular pore band with 15–23 pores, posterior spiracular pore band with 20–33 pores. Multilocular disc pores each primarily with 7 loculi, occasionally with 8‒10, restricted to genital area (segment VII). Ventral tubular ducts absent.
Etymology.
The species epithet
nanningensis
is formed from the name of the place where this new species was collected, i.e., the city of Nanning, combined with the Latin suffix -
ensis
, meaning ‘from’.
Host plant.
The species was collected from the leaves of
Ficus carica
L.
Distribution.
CHINA
:
Guangxi Province
.
FIGURE 4.
Adult female of
Coccus nanningensis
sp. n.
Abbreviations:
AGF
ano-genital fold;
ANP
anal plates;
ANT
antenna;
DA
body derm appearance;
DMD
dorsal microduct;
DS
dorsal setae;
DT
dorsal tubercles;
LG
tibio-tarsal joint of hind leg;
MS
marginal setae;
MDP
multilocular disc pores;
POP
preopercular pore;
SDP
spiracular disc pores;
SP
spiracle;
SSP
stigmatic spines;
VS
ventral setae.
FIGURE 5.
A photograph of the type slides of
Coccus cephalotaxus
Cao & Feng
sp. n.
(bottom) and
C. nanningensis
Cao & Feng
sp. n.
(top) to facilitate future recognition. The holotype specimen on each slide is ringed in blue.
Comments.
The adult female of
C. nanningensis
sp. n.
is morphologically similar to two African species,
C. inyangombae
Hodgson, 1967
and
C. sordidus
De Lotto, 1957
, both of which also lack tubular ducts from both dorsum and venter, and have marginal setae mostly with branched or fimbriate apices.
The new species can be separated from
C. inyangombae
as follows (data for
C. inyangombae
from
Hodgson (1967)
given in brackets): (i) dorsal setae setose, extremely fine and pointed, sparsely scattered (robust and pointed, quite numerous); (ii) anal plates each with a robust discal seta with pointed apex (without discal setae); (iii) anogenital fold with 6 anterior margin setae (with 4 anterior margin setae); (iv) marginal setae mainly rather long and highly variable in structure, some with apices branched or bifurcate; some conical, straight or curved with apices pointed; some with apices swollen, sagittate or spatulate; some setose, slender, fine and sharply pointed, but mostly without fimbriate apices (all rather long with fimbriate apices); (v) marginal setae between anterior and posterior stigmatic clefts numbering 10‒12 on each side (5‒7 on each side); (vi) antenna with 7 segments (with 8 segments); and (vii) pregenital setae mainly numbering 2 pairs (3 pairs).
Coccus nanningensis
sp. n.
can be separated from
C. sordidus
as follows (data for
C. sordidus
from
De Lotto (1957)
given in brackets): (i) body oval to subcircular, 1.5–2.0 mm long, 1.0–
1.5 mm
wide (elongate and asymmetric, up to
5.2 mm
long and up to
3.7 mm
wide); (ii) anal plates each with a robust discal seta with a pointed apex (without discal setae); (iii) anogenital fold with 6 anterior margin setae (with 4 anterior margin setae); (iv) marginal setae mainly rather long and highly variable in structure, some with apices branched or bifurcate; some conical, straight or curved with apices pointed; some with apices swollen, sagittate or spatulate; some setose, slender, fine and sharply pointed, but mostly without fimbriate apices (all rather long with slightly fimbriate apices); (v) antenna with 7 segments (with 8 segments); (vi) pregenital setae mostly numbering 2 pairs (3 pairs); (vii) leg without a tibiotarsal articulatory sclerosis (with a tibio-tarsal articulatory sclerosis); and (viii) multilocular disc pores restricted to genital area only (resent around genital area and on preceding 2 or 3 abdominal segments).