Rheocricotopus rotundus

From Species-ID
Jump to: navigation, search
Notice: This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.

If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly.

This page should be cited as follows (rationale):
Liu W, Lin X, Wang X (2014) A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae). ZooKeys 388 : 17–34, doi. Versioned wiki page: 2014-03-12, version 42636, https://species-id.net/w/index.php?title=Rheocricotopus_rotundus&oldid=42636 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Liu2014ZooKeys388,
author = {Liu, Wenbin, Lin, Xiaolong AND Wang, Xinhua},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae)},
year = {2014},
volume = {388},
issue = {},
pages = {17--34},
doi = {10.3897/zookeys.388.6316},
url = {http://www.pensoft.net/journals/zookeys/article/6316/abstract},
note = {Versioned wiki page: 2014-03-12, version 42636, https://species-id.net/w/index.php?title=Rheocricotopus_rotundus&oldid=42636 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae)
A1 - Liu W, Lin X
A1 - Wang X
Y1 - 2014
JF - ZooKeys
JA -
VL - 388
IS -
UR - http://dx.doi.org/10.3897/zookeys.388.6316
SP - 17
EP - 34
PB - Pensoft Publishers
M1 - Versioned wiki page: 2014-03-12, version 42636, https://species-id.net/w/index.php?title=Rheocricotopus_rotundus&oldid=42636 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.388.6316

Wikipedia/ Citizendium:

<ref name="Liu2014ZooKeys388">{{Citation
| author = Liu W, Lin X, Wang X
| title = A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae)
| journal = ZooKeys
| year = 2014
| volume = 388
| issue =
| pages = 17--34
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.388.6316
| url = http://www.pensoft.net/journals/zookeys/article/6316/abstract
| pmc =
| accessdate = 2019-06-20

}} Versioned wiki page: 2014-03-12, version 42636, https://species-id.net/w/index.php?title=Rheocricotopus_rotundus&oldid=42636 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Diptera
Familia: Chironomidae
Genus: Rheocricotopus

Name

Rheocricotopus rotundus Liu, Lin & Wang, 2014 sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnosis

The adult male of the new species can be distinguished from known species of the genus by the following combination of characters: low AR 0.25–0.29; superior volsella rounded.

Description

Male (n = 2).
Total length 1.58–1.98 mm. Wing length 0.86–1.20 mm. Total length/wing length 1.66–1.84. Wing length/length of profemur 1.74–2.61.
Coloration. Head and abdomen yellow brown, thorax without distinct pattern.
Head. Antenna as in Fig. 7. AR 0.25–0.29. Ultimate flagellomere 88–118 μm long. Temporal setae 3–4, including 1–2 inner verticals and 2 outer verticals. Clypeus with 6–12 setae. Tentorium 115–130 μm long, 23–25 μm wide. Stipes 115–118 μm long, 4–5 μm wide. Palpomere lengths (in μm): 48–53, 30–45, 48–60, 68–90, 123–163. L: 5th/3rd 2.56–2.71.
Wing (Fig. 8). Anal lobe normally developed. VR 1.17–1.19. Costal extension 30–38 μm long. Brachiolum with 1 seta. R with 1–3 setae. Remaining veins bare. Squama with 2 setae. Thorax (Fig. 9). Antepronotum with 4 lateral setae. Dorsocentrals 6–11; acrostichals 6–8, prealars 3. Scutellum with 2–6 setae. Humeral pit moderately large, ovoid.
Legs. Spur of fore tibia 23–40 μm long; spurs of mid tibia 13–18 μm long and 12–15 μm long; spurs of hind tibia 27–38 μm and 13–15 μm long. Hind tibial comb with 8–16 spines, 13–27 μm long. Width at apex of fore tibia 25–40 mm, of mid tibia 25–38 mm, of hind tibia 23–40 mm. Lengths and proportions of legs as in Table 3.

Table 3. Lengths (in μm) and proportions of legs of Rheocricotopus (Psilocricotopus) rotundus sp. n.
P1 P2 P3
fe 330–490 350–475 310–445
ti 380–500 310–485 350–520
ta1 218 135–240 188–300
ta2 153 80–135 108–165
ta3 120 65–110 90–145
ta4 75 35–50 35–65
ta5 50 40–50 50–65
LR 0.57 0.44–0.49 0.54–0.58
BV 2.33 3.48–3.61 2.88–3.00
SV 3.26 4.00–4.89 3.22–3.51
BR 2.67 2.00–2.80 3.06–3.83
Hypopygium (Figs 10–11). Anal point triangular, 20–28 μm long, with 4 lateral setae each side. Laterosernite IX with 2 setae. Phallapodeme 48–50 μm long. Transverse sternapodeme arcuate with normally oral projection, 33–40 μm long. Gonocoxite 125–135 μm long. Superior volsella rounded, plate-shaped and sclerotized, 28–38 μm long and 20–27 μm wide, covered with 8 short setae and a few microtrichia. Gonostylus 55–70 μm long, with distinct, triangular crista dorsalis. Megaseta 8–10 μm long. HR 1.93–2.27. HV 2.82–2.87.

Type material

Holotype: ♂ (BDN. G5A42), China, Zhejiang Province, Jinhua City, Pan’an County, Dapanshan National Nature Reserve, 28°98'02"N, 120°52'63"E, 18.vii.2012, sweeping, Lin XL. Paratype (1): 1♂, Yunnan Province, Dali Bai Autonomous Prefecture, Eryuan County, Niujie Town, 26°25'55"N, 99°98'90"E, sweeping, Wang BX.

Etymology

The specific name is an adjective, from Latin rotundus, meaning rounded, referring to rounded superior volsella.

Remarks

The new species resembles Rheocricotopus (Psilocricotopus) notabilits Caspers, 1987 in the following combination of characters: low AR; humeral pit medium, ovoid; the shape of anal point. But the new species can be separated from latter species on the basis of following characters: (1) costal extension of the new species (30–38 μm) much shorter than Rheocricotopus (Psilocricotopus) notabilits Caspers (72 μm); (2) anal lobe of the new species developed, which reduced in Rheocricotopus (Psilocricotopus) notabilits Caspers; and (3) crista dorsalis of the new species distinct, triangular subapical, which pronounced, rounded in Rheocricotopus (Psilocricotopus) notabilits Caspers.
Female and immature stages unknown.

Original Description

  • Liu, W; Lin, X; Wang, X; 2014: A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae) ZooKeys, 388: 17-34. doi

Images