Review of the genus Prosciara Frey (Diptera, Sciaridae) from China
Author
Shi, Kai
Author
Huang, Junhao
Author
Komarova, Lyudmila
Author
Zhang, Sujiong
Author
Wu, Hong
text
Zootaxa
2013
3640
3
301
342
journal article
10.11646/zootaxa.3640.3.1
e0cec98b-ebce-4cfe-ac0e-d609fdd39807
1175-5326
220660
D1FCEEB0-4BD0-42AC-9635-3CA90D19A5FD
Prosciara oligotricha
Shi & Huang
,
sp. nov.
(
Figs. 1
,
24
)
Specimens examined.
Holotype
, male.
China
, Yunnan province, Baoshan, Nankang, Gaoligong Nature Park,
2181 m
, sweep-net, 24°49.729ʹN, 98°46.074ʹE,
11.V.2009
, Su-Jiong Zhang [SM00896].
Description (Male). Color
. Head dark brown; antenna, thorax, abdomen and hypopygium yellowish-brown, mesonotum brown; palpus and legs yellow; wing fumose.
Head
(
Fig. 1
C, D). Eye bridge with 3 rows of facets. Basal segment of palpus with 2 setae; 2nd segment with 6 setae; 3rd segment with 8 setae. Length/width of 4th flagellomere: 1.45.
Thorax
. Anterior pronotum with 6 setae, episternum 1 with 7 setae.
Wings
. Wing length
2.54 mm
, width/length: 0.37. c/w: 0.57. R1/R: 1.03. r-m with 3 setae, stM with a few setae, M1 and M2 with numerous setae, Cu1 with numerous setae and Cu2 bare.
Legs
. Foretibia with a comb of 7 setae (
Fig. 1
E). Length of spur/ width of foretibia 1.89. Length of femur/length of metatarsus: foreleg 1.09. Length of metatarsus/length of tibia: foreleg 0.67, hind leg 0.53. Length of hind tibia/length of thorax 1.54. Foretibia with 0 dorsal, 1 ventral, 2 prolateral and 2 retrolateral spinose setae. Midtibia without dorsal spinose setae.
Hypopygium
(
Fig. 1
A, B). Sternite 10 with 3 setae on each half.
Distribution.
China
(Yunnan,
Fig. 24
).
Remarks.
By its relative wing length, setose M and Cu1, the form of the gonostylus and the subapically located dorsal lobe, the new species resembles
P. bifida
Hippa & Vilkamaa, 1991
and
P. mima
Hippa & Vilkamaa, 1991
. But the intercoxal lobe of the hypopygium is not present in
P. oligotricha
, whereas it is distinctly present in
P. bifida
and
P. m i m a
. The tegmen is wider than length in
P. oligotricha
, while as long as or longer than wide in
P. bifida
and
P. mima
. Additionally,
P. oligotricha
differs from
P. bifida
by having a wider gonostylus, with a dorsal lobe extended distally as far as apex of the gonostylus. This species differs from
P. mima
by a wider gonostylus, with five megasetae on the dorsal lobe, while four in
P. mima
.
Etymology.
This species is named after its few setae on the ventral membraneous area between the gonocoxites, from the Latin adjective
oligotrichus
, meaning few setae.