Revision of the Chinese species of the leafhopper genus Dayus Mahmood (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini), with description of three new species
Author
Qin, Dao-Zheng
qindaozh0426@yahoo.com.cn
Author
Zhang, Ya-Lin
text
Zootaxa
2007
2007-10-29
1624
1
43
51
https://biotaxa.org/Zootaxa/article/view/zootaxa.1624.1.4
journal article
10.11646/zootaxa.1624.1.4
11755334
5103282
BDF43B65-B3C0-429D-905F-17D62E093720
Dayus lii
n. sp.
(
Figs. 1–12
)
Type material.
Holotype
, male (
CAU
):
Dazhulan
,
Jianyang
,
Fujian Province
,
27 Oct. 1974
, coll.
Fasheng Li.
Length. Male
4.2 mm
.
Ground colour of body red. Vertex with irregular sordid yellow patch bordering eye; with a longitudinal greyish patch along coronal suture. Eyes grayish-black except median part dark. Apical 1/3 of fore wing semitransparent, light testaceous, hind wing with veins
R
,
MP
and CuA reddish. Legs red except hind tibia reddish beige and tarsi yellowish.
Abdodminal apodemes reaching to middle of segment
V
. Male pygofer abruptly narrowing apically, with about 10 linearly rigid setae on each side of pygofer lobe, with more posterior setae longer; dorsal lobe-like structure with a rigid microseta; ventral pygofer appendage branched apically, dorsal branch shorter than ventral one. Subgenital plate wide at base, nearly parallel-sided from basal 2/5 to sub-apex, with 9 apically rounded macrosetae in basal group, 28–30 marginal microsetae, 14 lateral macrosetae and 2–4 rows of fine microsetae. Parameres sinuate, apex bearing 8 teeth preceded by about 9 setae. Aedeagal shaft with a bifurcate subapical process and a short apical process on each side. Anal tube process narrowing in apical part.
Female.
Unknown.
Etymology.
This species is named after the collector of the
holotype
, Mr. Fasheng Li.
Discussion.
Dayus lii
n. sp.
is similar to
Dayus takagii
. It differs from the latter in its longer body length in male (
4.2 mm
compared to
3–3.1 mm
), ventral pygofer appendage branched subapically, subgenital plate with 9 setae in basal group, nearly parallel-sided over its most part and aedeagal shaft with a pair of subapical bifurcate processes and another shorter pair of apical processes.