Stenus liupanshanus

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This page should be cited as follows (rationale):
Tang L, Li L (2013) Discovery of Steninae from Ningxia, Northwest China (Coleoptera, Staphylinidae). ZooKeys 272 : 1–20, doi: 10.3897/zookeys.272.4389. Versioned wiki page: 2013-02-22, version 31584, http://species-id.net/w/index.php?title=Stenus_liupanshanus&oldid=31584 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Tang2013ZooKeys272,
author = {Tang, Liang AND Li, Li-Zhen},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Discovery of Steninae from Ningxia, Northwest China (Coleoptera, Staphylinidae)},
year = {2013},
volume = {272},
issue = {},
pages = {1--20},
doi = {10.3897/zookeys.272.4389},
url = {http://www.pensoft.net/journals/zookeys/article/4389/abstract},
note = {Versioned wiki page: 2013-02-22, version 31584, http://species-id.net/w/index.php?title=Stenus_liupanshanus&oldid=31584 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Discovery of Steninae from Ningxia, Northwest China (Coleoptera, Staphylinidae)
A1 - Tang L
A1 - Li L
Y1 - 2013
JF - ZooKeys
JA -
VL - 272
IS -
UR - http://dx.doi.org/10.3897/zookeys.272.4389
SP - 1
EP - 20
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-02-22, version 31584, http://species-id.net/w/index.php?title=Stenus_liupanshanus&oldid=31584 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.272.4389

Wikipedia/ Citizendium:

<ref name="Tang2013ZooKeys272">{{Citation
| author = Tang L, Li L
| title = Discovery of Steninae from Ningxia, Northwest China (Coleoptera, Staphylinidae)
| journal = ZooKeys
| year = 2013
| volume = 272
| issue =
| pages = 1--20
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.272.4389
| url = http://www.pensoft.net/journals/zookeys/article/4389/abstract
| pmc =
| accessdate = 2017-04-25

}} Versioned wiki page: 2013-02-22, version 31584, http://species-id.net/w/index.php?title=Stenus_liupanshanus&oldid=31584 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Staphylinidae
Genus: Stenus

Name

Stenus liupanshanus Tang & Li, 2013 sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material

Holotype. China: Ningxia: ♂, glued on a card with labels as follows: “Jinyuan County, Fengtai Linchang, 2400 m, 26.VI.2008, Wen-Xuan Bi & Zi-Wei Yin leg.”“Holotype / Stenus liupanshanus / Tang & Li” [red handwritten label] (SHNU). Paratypes. 1 ♀, same data as for the holotype (SHNU); 1 ♂: ibidem, 2310m, 22.VI.2008, idem (cPut); 2 ♂♂, Jinyuan County, Dongshanpo, 2310 m, 27.VI.2008, Wen-Xuan Bi leg. (SHNU); 2 ♀♀, Jinyuan County, Heshangpu Linchang, 2300 m, 27.VI.2008, Wen-Xuan Bi leg. (SHNU); 2 ♀♀, Jinyuan County, Qiuqianjia, 1800 m, 6.VII.2008, Wen-Xuan Bi leg. (SHNU)

Diagnosis

The new species belongs to the Stenus cephalotes group and can easily be distinguished from other Chinese representatives of this group by the presence of distinct reticulation on the forebody and the very short elytra (EL/EW less than 0.8).

Description

Brachypterous; body dark brown with head slightly darker, anterior margin of labrum, antennae, maxillary palpi and legs reddish brown.
BL: 2.6–2.7mm; FL: 1.3 mm.
HW: 0.62–0.67 mm, PL: 0.44–0.48 mm, PW: 0.49–0.52 mm, EL: 0.45–0.51 mm, EW: 0.60–0.64 mm, SL: 0.32–0.34 mm.
Head 1.02–1.04 times as wide as elytra; interocular area with deep longitudinal furrows, median portion convex, slightly extending beyond the level of inner eye margins; punctures round, moderately confluent, and of similar size, diameter of punctures about as wide as apical cross section of antennal segment III; interstices rugose with indistinct reticulation, much narrower than half the diameter of punctures except those along the midline of the convex median portion, where they may be slightly broader than diameter of punctures. Antennae, when reflexed, not reaching middle of pronotum; relative length of antennal segments from base to apex as 6: 5.5: 8: 5: 5: 4: 3: 2.5: 4: 4: 5.5. Paraglossa oval.
Pronotum 0.91–0.93 times as long as wide; disk somewhat flattened, with shallow median longitudinal furrow; punctures slightly confluent, a little larger than those of head; interstices reticulated, distinctly narrower than half the diameter of punctures.
Elytra 0.75–0.79 times as long as wide, distinctly constricted at base; lateral margins gently divergent posteriad; disk rather even, suture slightly convex; punctation and interstices similar to those of pronotum.
Legs with hind tarsi 0.68 times as long as hind tibiae, tarsomeres IV distinctly bilobed.
Abdomen cylindrical; distinct paratergites absent, but rudimentary lateral border present; posterior margin of tergite VII with palisade fringe; punctures of abdominal tergites III–VIII elliptic, gradually becoming smaller posteriad; interstices narrower than half the diameter of punctures, with relatively faint microsculpture on tergites III–VII and distinct reticulation on tergites VIII–X.
Male. Sternite VIII (Fig. 32) with very shallow emargination at middle of posterior margin; sternite IX (Fig. 33) with apicolateral projections very long and posterior margin serrate and emarginate; tergite X (Fig. 34) with posterior margin convex. Aedeagus (Figs 35, 36) with median lobe roundly pointed at apex; expulsion hooks (Fig. 37) very large; parameres extending a little beyond apex of median lobe, dilated in apical third, each with two groups of setae on inner side: 5–6 apical setae and 5–6 subapical setae.
Female. Abdomen broader than that of male; sternite VIII (Fig. 38) slightly produced in the middle of posterior margin; tergite X (Fig. 39) similar to that of male; sclerotized spermatheca bent twice with many bubble structures on second tube (Figs 40, 41).

Distribution

China (Ningxia).

Etymology

The specific name is derived from “Liupanshan”, the mountain where the type specimens were found.

Original Description

Images