The genus Plectrocnemia Stephens in China (Trichoptera, Polycentropodidae)
Author
Zhong, Hua
Author
Yang, Lian-Fang
Author
Morse, John C.
text
Zootaxa
2012
3489
1
24
journal article
10.5281/zenodo.209646
248e2740-8f3d-4c19-af6b-8f65c440db88
1175-5326
209646
6AC261D5-E4E1-4C1C-A7E2-2918F0A308B9
Plectrocnemia yunnanensis
Hwang 1957
(
Fig. 10
)
Plectrocnemia yunnanensis
Hwang 1957: 383
(male);
type
locality:
China
(Yun-nan Province: Yong-ren).
FIGURE 10.
Plectrocnemia yunnanensis
Hwang 1957
, male genitalia. A, ventral view; B, left lateral view; C, dorsal view; D, phallus, left lateral view; E, phallus, dorsal view; F, inner surface of left preanal appendage, inner view. inf.app. = inferior appendage; int.app. = intermediate appendage; m.
v.pro
. = mesoventral process of a preanal appendage; ph.b. = phallobase; ph.c. = phallicata; ph.scl. = phallic sclerite; pre.app. = preanal appendage; s.IX = sternum IX; t.IX = tergum IX; t.X = tergum X.
The original description and illustrations are quite simple. The species is very similar to
P. arphachad
Malicky & Chantaramongkol 1993
(
Thailand
)
,
P. forcipata
Schmid 1965
(
China
: Yun-nan), and
P. distincta
Martynov 1935
(
India
)
. As a matter of fact, they could actually be the same species since the drawings of these species are almost identical. We provide here more detailed descriptions and illustrations of
P. yunnanensis
for further comparison:
Adult. Length of each male forewing
11 mm
(N = 1). Head of specimen in alcohol brown with light brown antennae, pronotum light brown, meso- and metanota brown, forewings brown with white warts and stripes.
Male genitalia. Mesal portion of tergum IX membranous in dorsal view (
Fig. 10
C). Tergum X membranous, long, rectangular, with 2 pairs of long, needle-like intermediate appendages in dorsal view (
Fig. 10
C), with dorsal pair much more slender than ventral ones. Preanal appendages broadly foliaceous, each with its mesoventral process composed of row of irregular teeth (
Fig. 10
F). Inferior appendages long and thick, with distal 1/3 slender and abruptly curved mesad (
Fig. 10
A). Phallus slender, tubular (
Figs. 10
D, 10E), with oval dorsal plate at end of phallobase, this plate with pair of crinkled structures when viewed dorsally (
Fig. 10
E); parameres absent.
Specimens examined. Guang-xi Province
: Tian-lin County, Mt. Cen-wang-lao Forest Reserve, unnamed tributary of headwaters of Bu-liu River, waterfall at County Road 794 marker
37.9 km
,
N24.4128°
,
E106.3821°
, alt.
1422 m
, 0
8 June 2004
, Coll. Yang L-f. and C.J. Geraci.,
1 male
. Y
un-nan Province
: Wen-shan County, Sanjiao-tang, 0
9 July 1990
, alt.
1300 m
, Coll. Li Y-w. and Ke X.,
3 males
.
Distribution.
China
(Yun-nan, Guang-xi).