Description of eight new species and re-description of four species belonging to the family Phytoseidae (Acari: Mesostigmata) from West Bengal, India
Author
Karmakar, Krishna
Author
Bhowmik, Sagarika
text
Zootaxa
2018
4422
1
41
77
journal article
30048
10.11646/zootaxa.4422.1.3
cac41953-f4df-4b49-a016-f67e07507479
1175-5326
1251025
68D70470-6E6C-498D-AAF6-DA3CA8F93D2E
Scapulaseius moraesi
sp. nov.
(
Figs 22–28
,
85–86
)
Female
(n = 10).
Dorsum
(
Fig. 22
). Dorsal shield
315
, 320 (313–327) long and
199
, 203 (195–210) wide, ovoid, posterior part wider than anterior part, almost without any narrowing at the waist region, smooth, with marks of sigilla mostly on the prodorsum, and with parallel lines along the lateral sides of the dorsum, with seven pairs of solenostomes (gd1, gd2, gd4, gd5, gd6, gd8 and gd9); 18 pairs of setae on the dorsal shield and one pair (
r3
) of setae on the unsclerotised cuticle:
j
1
17
, 18 (16–20),
j
3
12
, 13 (12–14),
j
4
10
, 11 (9–12),
j
5
8
, 10 (8–11),
j
6
12
, 12 (11–13),
J
2
13
, 14 (12–15),
J5
8
, 9 (8–10),
z
2
11
, 12 (10–14),
z
4
11
, 13 (11–14),
z
5
9
, 10 (8–11),
Z
1
12
, 12 (10–14),
Z
4
28
, 27 (27–28),
Z5
78
, 79 (77–80),
s
4
17
, 17 (17–18),
S
2
14
, 14 (13–15),
S
4
15
, 14 (13–15),
S
5
11
, 11 (9–13),
r
3
12
, 13 (11–15),
R
1
11
, 12 (11–13). All setae smooth and short, setae
Z5
long, setae
J5
inserted anterior to posterior dorsal shield margin.
Peritreme
(
Fig. 22
). Extending forward beyond bases of
j1
with two parallel rows of microtubercles.
Venter
(
Fig. 23
). All shields smooth. Sternal shield
53
, 53 (53–54) long and
64
, 64 (63–65) wide at level of setae
ST1–ST3
and
ST3–ST3
respectively, with three pairs of setae and two pairs of lyrifissures; one pair of setae (
ST4
) on metasternal plate with a pair of conspicuous lyrifissures at the anterior part; posterior margin of sternal shield slightly concave. Distances between
ST2–ST2
58
, 58 (58–59),
ST5–ST5
63
, 62 (60–64). Genital shield flask shape, bulged laterally and a small notch posterior lateral side posterior margin truncated. Two pairs of metapodal shields, primary shield
19
, 18 (18–19) long and secondary shield
12
, 11 (11–12) long. Ventrianal shield
106
, 107 (105–108) long,
85
, 88 (83–93) wide at level of
ZV2
setae and
74
, 77 (73–80) wide at level of anus; with three pairs of pre-anal setae,
JV1
,
JV2
and
ZV2
, and one pair of large elliptical pre-anal pores. Membrane surrounding ventrianal shield with four pairs of setae:
ZVl
,
ZV3
,
JV4
and
JV5
; the latter
21
, 22 (20–23) long, smooth.
Chelicera
(
Fig. 24
,
85
). Fixed digit
27
, 27 (27–28) long, with nine teeth; movable digit
26
, 26 (26–27), with three teeth.
Spermatheca
(
Fig. 25
,
86
). Calyx elongate
16
, 16 (14–17) long, tubular and flared at the base of vesicle, slightly narrow near atrium, the atrium thick with three grooves from where the distinct minor and major duct arises.
Legs
(
Fig. 26
). Legs IV with three smooth macrosetae pointed distally and of the following lengths: genu
25
, 25 (24–26), tibia
21
, 21 (21–22), basitarsus
50
, 50 (49–51). Chaetotactic formula of genu II: 1–2/1, 2/0–1; genu III: 1–2/1, 2/0–1. Length of leg I:
271
, 278 (263–288), leg II:
220
, 222 (215–228), leg III:
220
, 222 (215–228), leg IV:
297
, 299 (293–305).
Male
(n = 3). A lightly sclerotised mite with 19 pairs of dorsal setae. Idiosomal setal pattern: 10A:9B/
JV
–3,4:
ZV
–1,3.
Dorsum
. Dorsal shield
250
, 252 (245–258) long and
165
, 168 (163–173) wide, smooth. 17 pairs of setae on dorsal shield and two pairs of setae on unsclerotised cuticle:
j
1
13
, 14 (12–16),
j
3
13
, 14 (13–15),
j4
8
, 9 (7–10),
j
5
10
, 10 (9–11),
j
6
10
, 11 (9–12),
J
2
11
, 12 (10–13),
J5
7
, 7 (6–8),
z
2
13
, 12 (12–13),
z
4
13
, 13 (12–14),
z
5
9
, 10 (9–11),
Z
1
11
, 11 (10–12),
Z
4
20
, 21 (20–22),
Z5
55
, 54 (53–55),
s
4
16
, 15 (15–16),
S
2
12
, 13 (12–14),
S
4
11
, 12 (10–13),
S
5
12
, 11 (11–12),
r
3
12
, 13 (11–14),
R
1
10
, 11 (9–12). All setae smooth and short setae
Z5
long.
Peritreme
. Extending beyond level of
j1
.
Venter
(
Fig. 27
). Sternogenital shield with a few lateral lines, ventrianal shield striated. Sternogenital shield with five pairs of setae and three pairs of distinguishable lyrifissures. Ventrianal shield
108
, 107 (105–108) long,
100
, 100 (98–102) wide at the level of
ZV2
setae,
51
, 53 (50–55) wide at the level of anus; with three pairs of preanal setae,
JV1
,
JV2
and
ZV2
, one pair of pores and two pairs of distinguishable lyrifissures. Unsclerotised membrane surrounding ventrianal shield with one pair of setae,
JV5
at level of anal opening.
Legs
. Leg IV with three smooth macrosetae and of following lengths; genu
21
, 22 (20–23), tibia
18
, 19 (17–21), basitarsus
40
, 40 (40–41). Chaetotactic formula of genu II: 1–2/1, 2/0–1; genu III: 1–2/1, 2/0–1. Length of leg I:
240
, 245 (235–255), leg II:
190
, 192 (185–198), leg III:
190
, 192 (185–198), leg IV:
265
, 269 (263–275).
Chelicera
(
Fig. 28
). Spermatodactyl with an elongated shaft
15
, 15 (15–16) long terminating with a wide toe,
6
, 5 (5–6) long.
Type Specimens.
Holotype: Female (Acarol.lab/BCKV/8229/2016) (Registration number 4401/17 deposited in the NZC, Zoological Survey of India, Kolkata), collected from
Clerodendrum
sp
. (
Lamiaceae
), at Pundibari: 26°52´43" N, 89°10´75" E,
47 m
above mean sea level, Cooch Behar, West Bengal on
11 November 2016
; 1 paratype female (Acarol.lab/BCKV/8215/2016) (Registration number 4402/17 deposited in the NZC, Zoological Survey of India, Kolkata), collected from Jute,
Corchorus capsularis
(Tiliaceae)
with same location as holotype on
11 November 2016
; 3 paratype females (Acarol.lab/BCKV/8215-8217/2016), collected from Jute,
Corchorus capsularis
(Tiliaceae)
, 4 paratype females (Acarol.lab/BCKV/8218-8221/2016), collected from Turmeric,
Curcuma longa
(Zingiberaceae)
, 4 paratype females (Acarol.lab/BCKV/8224-8227/2016), collected from Mung,
Vigna radiata
(Leguminosae)
, 1 paratype female (Acarol.lab/BCKV/8232/2016), collected from Rice,
Oryza sativa
(Poaceae)
, with same location and date as holotype; 2 paratype females (Acarol.lab/BCKV/8222-8223/2016), collected from Gamari,
Gmelina arborea
(
Verbenaceae
) 1 paratype female (Acarol.lab/BCKV/8231/2016), collected from Bamboo,
Bambusa indica
(Poaceae)
, at Tufanganj: 26°33´05" N, 89°66´75" E,
70 m
above mean sea level, Cooch Behar, West Bengal on
9 November 2016
; 1 paratype male (Acarol.lab/BCKV/8221/2016) (Registration number 4403/17, deposited in the NZC, Zoological Survey of India, Kolkata) collected from Turmeric,
Curcuma longa
(Zingiberaceae)
with same location as holotype female on
11 November 2016
; 1 paratype male (Acarol.lab/BCKV/8228/2016), collected from
Clerodendrum
sp
. (
Lamiaceae
), with same location as holotype female on
11 November 2016
; 1 paratype male (Acarol.lab/BCKV/8230/2016) from Arjun,
Terminalia arjuna
(Combreteaceae)
at Tufanganj: 26°33´05" N, 89°66´75" E,
70 m
above mean sea level, Cooch Behar, West Bengal on
9 November 2016
.
Etymology.
The specific name
moraesi
is dedicated to Professor Gilberto J de Moraes, the renowned Brazilian Acarologist and beloved friend and philosopher of senior author.
Remarks.
Scapulaseius moraesi
is close to
Scapulaseius markwelli
(
Schicha, 1979
)
but differs from it by the shape of the tip of the macrosetae of the genu, which are knobbed in
S
.
markwelli
and pointed in the former species. The former species is characterised by conspicuous lateral parallel lines along the dorsal shield, which are not present in the latter species. In the former species the setae
J5
,
Z4
and
Z5
are smooth while these are serrated in latter species.
Scapulaseius moraesi
is also close to
S
.
beelarong
(
Schicha & Corpuz-Raros, 1992
)
and
S
.
officinaria
(
Gupta, 1975
)
but the former species widely differes from all the other closely related species. The setae
j3
17,
Z4
28 and
Z5
78 of the former species are longer than the setae
j3
13,
Z4
19 and
Z5
59 of
S
.
beelarong
. The tips of setae
j1
,
Z4
and macrosetae on legIV of latter species are rounded while the tips of these setae in former species are pointed. The seta
Z5
of the former species is smooth and it is serrated in latter species. The former species also differs from the latter species by difference in posterior margin of sternal shield, shape of spermatheca, number of teeth in fixed digit of chelicerae and in shape of genital and ventrianal shield. The former species differs widely from
S
.
officinaria
(
Gupta, 1975
)
by dorsal shield sclerotisation pattern which is reticulated in the latter species while in contrast to this the dorsal shield in former species having lateral parallel lines along margins. The former species also differs from
S
.
officinaria
(
Gupta, 1975
)
by number of teeth in fixed digit which is nine in the former species and five in the latter species and also differs in shape of spermatheca, genital shield and length of macrosetae of leg IV.