A review of Paratrichocladius Santos Abreu from the Sino-Indian Region (Diptera: Chironomidae: Orthocladiinae)
Author
Fu, Yue
Author
Saether, Ole A.
Author
Wang, Xinhua
text
Zootaxa
2012
3478
453
482
journal article
10.5281/zenodo.209364
ebd122ff-1065-4d4b-baf5-c4b976a7aa07
1175-5326
209364
Paracricotopus tamabrevis
(Sasa
et
Suzuki)
(
Fig. 16
A–C)
Paratrichocladius tamabrevis
Sasa
et
Suzuki, 1983: 74
.
Paracricotopus tamabrevis
(Sasa
et
Suzuki)
;
Niitsuma 1990
: 97
.
Paratrichocladius gotoefeus
Sasa
et
Suzuki, 2000b
: 154
;
Yamamoto 2004
: 73
.
Paracricotopus gotoefeus
(Sasa
et
Suzuki)
,
comb. n.
, syn. n.
FIGURE 16.
Paracricotopus tamabrevis
(Sasa
et
Suzuki)
, male. [Holotype of
Paracricotopus gotoefeus
(Sasa
et
Suzuki)
comb. n.
].
A—
Wing.
B—
Hypopygium, dorsal view.
C—
Hypopygium, ventral view.
Material examined.
JAPAN
: Kyushu
, Nagasaki Prefecture, Goto Islands, Wani River,
holotype
male of
P. gotoefeus
,
28. xi. 1999
, H. Suzuki (No. 394: 29).
Diagnostic characters.
AR 0.3; humeral pit small and indistinct; inferior volsella rounded and broad, with some strong setae on the margin; and gonostylus with a triangular crista dorsalis.
Additions to description.
Anal point present, 35 µm long, basal wide 15 µm, peak wide 3 µm, with 1 long lateral setae on each side (absent in original description). Total length / wing length 2.1. Wing length / length of profemur 2.3. AR only 0.3. Tentorium 158 µm long, 35 µm wide. Dorsocentrals 12. Costal extension 45 µm long. Palpomeres length (in µm): 33, 55, 100, 130, 218. Palpomere 2 ellipsoid, 3 and 4 rectangular, 5 long and slender, Palpomeres 5/3: 2.2. Laterosternite IX with 4 long setae. Transverse sternapodeme 85 µm long, with weak oral projections. Inferior volsella rounded and developed. Gonocoxite 213 µm long. Gonostylus 95 µm long, with a triangular crista dorsalis. Megaseta 12 µm long. HR 2.2, HV 3.2. The wing and hypopygium of
holotype
are redrawn as in
Fig. 15
A–C (In fact, anal point folded in the
holotype
).
Distribution.
The species is known from
Japan
only.
Remarks.
Due to the presence of an anal point (it is folded upwards and may be a bit hard to see); eye without dorsomedian extension; and wing with typical
Paracricotopus
venation, this species should be transferred to the genus
Paracricotopus
Thienemann
et
Harnisch. The
characters are almost identical to those of
P. tamabrevis
according to the original description and the redescription by
Niitsuma (1990)
. We did not examine the
holotype
of
P. tamabrevis
(
Sasa 1983
;
Yamamoto 2004
), however, the redescription by Niitsuma is quite complete.