New taxa and records of flat bugs (Hemiptera: Heteroptera: Aradidae) from Hainan of China
Author
Bai, Xiaoshuan
Author
Heiss, Ernst
Author
Cai, Wanzhi
text
Zootaxa
2011
3012
48
58
journal article
46429
10.5281/zenodo.278581
c3a3a908-e6cc-4714-af99-36acb3a0bebe
1175-5326
278581
Hainanmezira latiscutellata
n.sp.
(
Fig.1
., photo 3,4)
Material examined
.
Holotype
, 3, labelled.
China
, Hainan, Ledong / Jianfengling /
2009 IV 28
Zhang & Yang / ent. Mus.
CAU
, Beijing //
Holotype
3 /
Hainanmezira
n. gen
.
/
latiscutellata
n.sp
.
/ des. Bai,Heiss,Cai 2011 (
CAU
);
paratype
: 1Ƥ collected with
holotype
(
CAU
); 1Ƥ
China
, Hainan, Jianfeng / Chahekou /
217m
/
2007 VIII 20
Bai XS / ent. Mus.
CAU
, Beijing (
EMIH
); 131Ƥ
China
, Hainan, Wuzhi montain /
2008 V 8
Bai XS / Ent. Mus. Imnu. Huhhot (
EMIH
); They are designated and labelled accordingly.
Description.
Male, brachypterous; colouration dark brown, surface of head thorax, mtg I+II and median elevation of tergal plate granulate.
Head
. Slightly longer than width of head (22/21); genae produced over clypeus leaving a cleft; antenniferous lobes diverging anteriorly with blunt apex reaching 1/3 of antennal segment I; antennae 1.78x as long as width of head (37.5/21); segment I thickest slightly bent at base, II–III more slender, II shortest and III longest, IV fusiform with pilose apex; eyes oval inserted in head; postocular lobes straight converging posteriorly toward collar; vertex granulate at middle with ovate smooth callosities laterally; rostrum arising from a slit-like atrium, as long as head, rostral groove deep with carinate lateral margins, closed posteriorly.
Pronotum
. 2.6x as wide as long (24/9); collar ring-like and carinate; lateral margins roundly converging anteriorly its anterolateral angles not reaching anterior margin of collar; disk with an inverted T-shaped groove flanked by 2(1+1) ovate callosities and granulate ridges laterally; posterior margin elevated and sinuate.
Mesonotum
. Consisting of a scutellum about
6x
as wide as long (29/5), roundly humped at middle and 2 (1+1) subtriangular wing pads laterally; these depressed on their inner angle, carinate and raised along exterior margin; slit-like metathoracic scent gland canals visible from above; posterior margin sinuate and fused to metanotum.
Metanotum
. Round median elevation granulate nearly as high as mesonotal elevation, laterally sloping and smooth, then granulate; posterior margin sinuate fused to mtgI.
Mtg I+II. Fused to each other and to tergal plate without distinct sutures; mtg I forming transverse ridge at middle, this high as mesonotal- metanotal elevation, laterally sloping toward smooth depressed lateral parts; mtgII only slightly raised at middle, lateral parts with flat round callosities.
Abdomen
. Tergal plate flat roundly elevated at mtg III–IV and around dorsal scent gland on mtg IV–V; apodemal impressions sourrounded by thin carinae; deltg II–VI laterally reflexed, deltg II+III fused all others separated by sutures; tergite VII raised medially for reception of pygophore.
Venter
. As described for the genus, spiracles II–VI ventral and not visible from above, VII and VIII lateral and visible.
Legs
. Unarmed, femora slightly attenuated at base and apex, tibiae cylindrical; claws with long setiform pseudopulvilli.
Genitalic structures
. Pygophore conical with rugose surface; ptg VIII small, reaching of pygophore; the only male was not dissected for the study of parameres.
Female
. Generally as male but of larger size and more ovate abdomen, its lateral margins evenly rounded; tergite VII raised posteriorly with two transverse ridges on posterior half, ptg VIII strongly transverse shorter than truncate tergites IX+X.
Measurements
.
Holotype
: length
5.3 mm
; length of antennae
1.87 mm
; width of abdomen
2.55 mm
;
paratype
Ƥ: Length
6.3 mm
; length of antennae 2.0 mm; length of antennae / width of head 1.74; length of antennal segments I/II/III/IV = 11/7.5/13.5/8; width of abdomen across tergite IV
3.25 mm
.
Etymology.
From>
latus
<(Latin) wide, referring to the strongly transverse scutellum.
Distribution.
So far recorded from Central Hainan on Wuzhishan and Jianfengling.