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
Paratrichocladius pretorianus
(Freeman)
Trichocladius pretorianus
Freeman, 1956
: 316
.
Paratrichocladius pretorianus
(
Freeman) Freeman & Cranston 1980
;
Rossaro 1990
: 59
;
Harrison 1992
: 184
.
Material examined.
CHINA
: Fujian Province:
Quanzhou City, Dehua County, Deiyunshan Mountain (
25°41’ N
,
118°11’ E
),
1635 m
a.s.l,
2 males
,
12. ix. 2002
,
14. ix. 2002
, Zheng Liu (BDN No. 20134, 20170
)
.
Diagnostic characters.
This species is similar to
P. rufiventris
(
Meigen 1830
) (
Caspers & Reiss, 1989
)
in AR and distinct humeral pit, and most other characters, but can be separated by the setae of abdomen reduced; inferior volsella with apical rounded, not triangular, and with notched posterior margin; gonostylus with large crista dorsalis.
Additions to description.
Chinese specimens had the following measurements: Total length 3.0–
3.3 mm
. Wing length
1.5–1.6 mm
. Total length/ wing length 2.0. Wing length/ length of profemur 2.4–2.5. AR 1.35–1.4. Temporal setae 4, including 2 inner vertical, 2 outer vertical. Clypeus with 17–19 setae. Tentorium 143–145 µm long, 33–40 µm wide. Stipes 145–150 µm long, 10–13 µm wide. Palpomeres length (in µm): 35–45, 55, 108–113, 113–118, 170–178. Palpomere 5/ 3 1.55–1.6. Dorsocentrals 16–18 setae, prealars 5. Scutellum with 6–8 setae. Squama with 15–16 fringe hairs. R with 4–5 setae. VR 1.0–1.1. Cu length 640–670 µm. Cu/wing length 0.42–0.43. Wing width/wing length 0.32– 0.33. Laterosternite IX with 5–6 long setae. Phallapodeme 65–70 µm long, transverse sternapodeme 100–105 µm long, with oral projections. Gonocoxite 188–190 µm long. Inferior volsella a little curved posteriorly. Superior volsella absent. Gonostylus 80–88 µm long, with crista dorsalis. Megaseta 10–12 µm long. HR 2.1–2.4, HV 3.7–3.8.
Distribution.
The species occurs in Transvaal in
South Africa
, and in the Ethiopian highlands. The Chinese specimens were collected in the Fujian Province (Oriental
China
).