Review of the plant bug genus Prolygus and related mirine taxa from eastern Asia (Hemiptera: Heteroptera: Miridae)
Author
Yasunaga, Tomohide
Research Associate, Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA, c / o Nameshi
Author
Schwartz, Michael D.
- 33 -
Author
Chérot, Frédéric
Département de l’Etude du Milieu Naturel et Agricole, Service Public de Wallonie, Gembloux, BE- 5030, Belgium;
text
Acta Entomologica Musei Nationalis Pragae
2018
Acta. Ent. Mus. Natl. Pragae
2018-09-07
58
2
357
388
http://dx.doi.org/10.2478/aemnp-2018-0030
journal article
5802
10.2478/aemnp-2018-0030
16533e21-bbe3-46c1-a4ba-70fca1112446
1804-6487
4504807
D9893299-697F-4AA1-99D5-9575B313DB0D
Miyamotolygus rufilorum
(Lu & Zheng, 1998)
comb. nov.
(
Figs 62–63
,
87–89
,
147–152
,
159–163
)
Lygocoris
(
Neolygus
)
rufilorum
Lu & Zheng, 1998a: 3
(original description).
Lygocoris
(
Neolygus
)
rufilorum
:
KERZHNER & JOSIFOV (1999)
: 116
(catalog).
Neolygus rufilori
[incorrect subsequent spelling]:
ZHENG et al. (2004)
: 418
(new combination, diagnosis, key).
Prolygus
near
tainanensis
(misidentification):
NOZAKI et al. (2016)
: 80
(faunal list).
Material examined.
JAPAN
: KYUSHU:
Kumamoto Pref.
, Amakusa City, Tsuruha-yama Park, 32.15, 130.04, sweeping inflorescence of
Rhus javanica
,
12 Sep 2015
, T. Nozaki, 2 ♁♁
2 ♀♀
(
NIAES
,
TYCN
) (1 ♁,
AMNH
_PBI 00380508).
TAIWAN
: KAGI:
Fenchihu, 23.50, 120.69,
10. Apr 1965
, T. Shirozu, 1 ♁ (
TYCN
) (
AMNH
_PBI 00380509).
NEPAL
: KATHMANDU VALLEY:
Samakhusi, Gongabu,
27°43
′
59.5
″
N
,
85°18
′
49
″
E
,
1,300 m
, UV light trap,
31 May 2005
, T.Yasunaga 1♁
1♀
(
TYCN
) (1♁,
AMNH
_PBI 00380510); Swayambhu,
27°43
′
N
,
85°15
′
E
, on flowers of broadleaf trees,
15 May 2005
,T.Yasunaga, 1♁
1♀
(
TYCN
); Bhaktapur, Balkot, 27.66, 85.37,
8 May 2006
,
Ligustrum
inflorescence, T.Yasunaga & R. K. Duwal, 1 ♁ (
NMTU
).
THAILAND
:
CHIANG
MAI:
Doi Chiang Khian, near Doi Suthep,
16–17 Nov 1989
, T. Yasunaga, 1 ♁ (
TYCN
); Doi Pui,
1,400 m
, 18.80, 98.80,
15 May 2001
, S. Sakurai, 1 ♁ (
TYCN
) (
AMNH
_PBI 00380511).
Measurements
(in mm). ♁/
♀
: Total length of body 3.95– 4.18 / 4.45–4.50; head width including eyes 0.99–1.01 / 1.00–1.01; vertex width 0.25–0.29 / 0.31–0.32; lengths of antennal segments I–IV 0.51–0.53, 1.60–1.70, 0.67–0.78, 0.49–0.54 / 0.52–0.53, 1.66–1.68, 0.87, 0.49–0.50; labial length 1.47–1.55 / 1.50; mesal length of pronotum including collar 0.87–0.90 / 0.87; basal width of pronotum 1.48–1.52 / 1.60–1.61; maximum width across hemelytron 1.78–1.80 / 1.95; and lengths of metafemur, tibia and tarsus 1.63–1.65, 2.25–2.33, 0.45–0.50 / 1.65, 2.40, 0.48.
Differential diagnosis.
Recognized by generally pale green, ovoid body; red stripe on maxillary plate; dark or reddish apices of clavus and cuneus; and unique shape of male and female genitalia as in generic description. Detailed description of external structure was provided by
LU & ZHENG (1998a)
. This mirine may be confused with
Anthophilolygus bakeri
(pale individual as in
Fig. 57
),
Apolygus spinolae
(Meyer-Dür, 1841)
or
Taylorilygus apicalis
(Fieber, 1861)
, from which
M. rufilorum
can be readily distinguished by maxillary plate with red stripe.
Biology.
This mirid has been collected by UV-lighting as well as sweep-netting inflorescences of various broadleaf angiosperms. Teneral adults were collected by sweep- netting inflorescence of
Rhus javanica
L. (
Anacardiaceae
) which is presumed to be a breeding host as some teneral adults co-occurred (Nozaki, personal communication). One generation per year is assumed for populations in temperate climatic zones (Kyushu,
Japan
and Kathmandu Valley,
Nepal
).
Distribution.
Japan
(Kyushu) (new record),
Nepal
(Kathmandu Valley) (new record), P. R.
China
(
Fujian
, Guanxi,
Yunnan
, Zejiang) (
LU & ZHENG 1998a
),
Taiwan
(Kagi) and
Thailand
(
Chiang Mai
) (new records).
Comments.
This unique mirine was recently reported from
Kumamoto
,
Japan
as ‘
Prolygus
near
tainanensis
’(
NOZAKI et al. 2016
) based on the image available on the NMNS website (
Fig. 65
). But subsequent closer examination of specimens offered by Nozaki finally made it possible to elucidate the identity of
Prolygus tainanensis
(actually the junior synonym of
Anthophilolygus bakeri
) and proper generic placement for
Miyamotolygus rufilorum
. This small misidentification, which produced unexpected, bigger findings, was a starting point of this lengthy paper. We encourage many more investigations on basic faunas by such enthusiastic amateur researchers (e.g.,
NOZAKI et al. 2015
,
2016
), although we are not certain how to draw the borderline between amateur and professional entomologists.
Figs 147–158. Scanning electron micrographs for
Miyamotolygus rufilorum
(Lu & Zheng, 1998)
(147–152) and
Poppiolygus bengalicus
(
Reuter, 1885
)
(153–158). 147, 153 – head and thorax, dorsal view; 148, 154 – dorsal vestiture pattern (c: corium, p: pronotum, s: scutellum); 149 – head and thorax, left lateral view; 150, 157 – metatarsus; 151 – pretarsus (hind leg); 152, 158 – pygophore, left lateral view; 155 – scent efferent system; 156 – protarsus.
The female of
Miyamotolygus rufilorum
(
Fig. 63
) superficially quite resembles pale variant of
Anthophilolygus bakeri
(
Fig. 54
). The male of the former can rather easily be distinguished from the latter by the red stripe on maxillary plate and uniformly pale scutellum and anterior hemelytron that lack dark fascia; in female, the former has the red stripe on the maxillary plate. Usually,
M. rufilorum
is larger than
A. bakeri
.