Two new species of Pezothrips (Thysanoptera, Thripidae) in Japan and Europe, with designation of lectotype of type species
Author
Masumoto, Masami
Author
Okajima, Shûji
text
Zootaxa
2020
2020-02-24
4743
1
75
91
journal article
10.11646/zootaxa.4743.1.6
1595b9b6-1abb-40d6-917f-51d6229a5657
1175-5326
3687644
3096E7FB-4886-4410-8E46-211D07FB01B3
Pezothrips nadeshiko
n. sp.
(
Figs 12–14
,
62–70
)
Female macroptera
. Distended body length
1.5–1.7 mm
. Body almost uniformly brown, but often abdomen slightly darker; antennal segments I–II brown, III–IV yellow, V yellow with distal half slightly shaded, VI brown with basal half yellowish, VII–VIII brown; fore wings including clavus pale with median area slightly shaded; all femora yellowish brown to brown, fore tibiae brownish yellow, mid and hind tibiae brownish yellow or brown with apices yellowish, often darker at basal half, all tarsi brownish yellow; prominent body setae brown to dark brown (
Figs 12, 13
). Head 0.7–0.9 times as long as width, sculptured with widely spaced transverse anastomosing striae at basal fourth dorsally, smooth within ocellar triangle, cheeks almost straight (
Fig. 62
). Ocellar setae III outside of ocellar triangle and in front of hind ocelli, 1.0–1.8 times as long as interval. Antennal segment II without microtrichia, III and IV with weak apical neck and with setae normal not stout, IV–VI weakly pedicelate, VI longest, often subequal in length to III, gently rounded at each side (
Fig. 63
). Antennal segments I–VIII length/width ratio as follows: 0.8, 1.2–1.3, 2.4–2.8, 2.3–2.4, 1.9–2.1, 2.4–2.9, 1.3–1.5, 3.3–3.8. Pronotum about 0.7 times as long as wide, sculptured with transverse anastomosing striae but weak medially, with 16–20 small discal setae; posteroangular setae I 0.4–0.6 times as long as pronotal median length and longer than setae II; posteromarginal setae three pairs, setae I longest. Mesonotum sculptured with transverse anastomosing striae; CPS present anteromedially; median and submedian setae almost in transverse line (
Fig. 64
). Metascutum with median pair of setae 0.5–0.7 times as long as metascutal median length; CPS present. Fore wing costal vein with 18–21 setae, second vein with 9–12 setae; clavus with five (rarely four) veinal setae. Abdominal tergites laterally with lines of sculpture, a few lines across between S1 setae (
Figs 65, 66
); tergite VI–VIII with S4 setae reduced to minute; tergites VII–VIII with S2 setae much longer than S1 setae and reaching at or slightly exceeding tergal posterior margin; tergite VIII with complete posteromarginal comb, microtrichia long with wide base but a few median microtrichia often short or rarely reduced to a wide base; tergite IX with both anterior and posterior pairs of CPS; sternum VII with S1 setae much closer to each other than to setae S2 (
Fig. 67
). Ovipositor 1.8–1.9 times as long as pronotal median length.
Measurements
(
holotype
female in microns). Distended body length 1670. Head length 113 (length including anterior prolongation 118), width across cheeks 152; compound eyes dorsal length 68, width 38; ocellar setae III length 50–57, interval 35. Pronotal median length 133, width 183; posteroangular setae I length 69–74, setae II length 54–58, posteromarginal setae I 25–28. Metascutal median length 66; median setae length 43–45. Fore wing length 670, width at middle 45. Abdominal tergite IX median length 86; S1 setae 128–130, S2 setae 142–143, S3 setae 141–143, MD setae 53–58; tergite X median length 77; S1 setae 139–140, S2 setae length 135–138. Ovipositor length 250. Antennal segments I–VIII length (width) as follows: 25 (33), 38 (29), 53 (19), 48 (20), 40 (20), 53 (19), 10 (8), 19 (5).
Male macroptera
. Distended body length about
1.2 mm
. Body colour paler than female (
Fig. 14
). Abdominal tergite IX without tubercles at posterior margin (
Fig. 68
).
Measurements
(
paratype
male in microns). Distended body length 1170. Head length 93 (length including anterior prolongation 98), width across cheeks 126; compound eyes dorsal length 58, width 36; ocellar setae III length 33–43, interval 29. Pronotal median length 105, width 155; posteroangular setae I length 42–54, setae II length 19–37, posteromarginal setae I 35–15. Metascutal median length 53; median setae length 26–30. Fore wing length 500, width at middle 40. Antennal segments I–VIII length (width) as follows: 25 (29), 30 (25), 53 (19), 43 (16), 35 (18), 44 (16), 10 (6), 15 (5).
Type series.
Holotype
female,
JAPAN
,
Honshu
,
Hiroshima Pref.
,
Mihara City
,
Hongo-cho
, on leaves of
Dianthus superbus var. longicalycinus
[
Caryophyllaceae
],
3.iii.2007
,
H. Akashi
.
Paratypes
:
1 female
collected together with holotype
;
1 female
, same locality
and plant as
holotype
,
11.vi.2007
, H.
Akashi
;
2 females
,
1 male
, same locality
and plant as
holotype
,
3.vii.2007
, H.
Akashi
;
40 females
,
8 males
, same locality
and host plant as the
holotype
,
23.v.2008
,
Y. Kojima.
Hiroshima Pref.
,
Higashi-hiroshima City
,
Saijo-cho
,
13 females
on leaves of
Dianthus superbus var. longicalycinus
,
9.vi.2008
, Y. Kojima. Osaka-fu, Sakai-shi,
3 females
,
5 males
on flower & leaf of
D. superbus var. longicalycinus
,
10.vi.2015
, Y. Kojima. The
holotype
and most
paratypes
are deposited in TUA.
FIGURES 1–17
.
Pezothrips
species.
P. bactrianus
, 1–3. (1) Paratype, female; (2) Allotype, male; (3) Male from Turkey. (4)
P. cereus
, paratype female.
P. dianthi
, 5–6. (5) Female; (6) Male. (7)
P. frontalis
, 7–9. (7) Lectotype female; (8) Female macroptera; (9) Male microptera. (10)
P. kaszabi
, holotype female. (11)
P. moravicus
, holotype female.
P. nadeshiko
,
n. sp.
, 12–14. (12) Holotype female; (13) Paratype female; (14) Paratype male. (15)
P. nigriventris
, holotype female.
P. pelikani
,
n. sp.
, 16–17. (16) Lectotype female; (17) Slide of lectotype, red arrow indicates lectotype.
FIGURES 18–27
.
Pezothrips bactrianus
. Paratype female, 18–24. (18) Head and pronotum; (19) Antenna; (20) Meso- and metanota; (21) Tergite II; (22) Tergite VII; (23) Tergites VIII–X; (24) Sternite VII (sculpture omitted). Male, 25–27. (25) Tergite IX; (26) Sternite VII; (27) Genitalia (hypomere & parameres), dorsal aspect, allotype.
FIGURES 28–31
.
Pezothrips cereus
, paratype female. (28) Head and pronotum; (29) Mesonotum and metascutum; (30) Tergites VIII–X; (31) Sternite VII (sculpture omitted).
Comments
. This species is very similar to the Holarctic species
P. dianthi
, that is also associated with
Dianthus
, in having the pronotum with three pairs of posteromarginal setae and abdominal tergite VIII with posteromarginal comb complete. In this study, two females (deposited in TUA) and one male (deposited in SMF) of
P. dianthi
from
Dianthus carthusianorum
at Rotenfels,
Germany
were compared with this new species. In
P. dianthus
, setae on antennal segments III are distinctly stouter, almost 1.5 times as broad as that on
P. nadeshiko
and an angle to the segment of pedicel on antennal segment VI is more gentle than in
P. nadeshiko
.
Etymology
. In reference to Japanese name of the host plant.