Tangius indicus

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Yin Z, Li L (2013) A new species of Tangius from north India (Coleoptera, Staphylinidae, Pselaphinae). ZooKeys 346 : 23–27, doi. Versioned wiki page: 2013-11-01, version 38846, https://species-id.net/w/index.php?title=Tangius_indicus&oldid=38846 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Yin2013ZooKeys346,
author = {Yin, Zi-Wei AND Li, Li-Zhen},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A new species of Tangius from north India (Coleoptera, Staphylinidae, Pselaphinae)},
year = {2013},
volume = {346},
issue = {},
pages = {23--27},
doi = {10.3897/zookeys.346.6233},
url = {http://www.pensoft.net/journals/zookeys/article/6233/abstract},
note = {Versioned wiki page: 2013-11-01, version 38846, https://species-id.net/w/index.php?title=Tangius_indicus&oldid=38846 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A new species of Tangius from north India (Coleoptera, Staphylinidae, Pselaphinae)
A1 - Yin Z
A1 - Li L
Y1 - 2013
JF - ZooKeys
JA -
VL - 346
IS -
UR - http://dx.doi.org/10.3897/zookeys.346.6233
SP - 23
EP - 27
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-11-01, version 38846, https://species-id.net/w/index.php?title=Tangius_indicus&oldid=38846 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.346.6233

Wikipedia/ Citizendium:

<ref name="Yin2013ZooKeys346">{{Citation
| author = Yin Z, Li L
| title = A new species of Tangius from north India (Coleoptera, Staphylinidae, Pselaphinae)
| journal = ZooKeys
| year = 2013
| volume = 346
| issue =
| pages = 23--27
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.346.6233
| url = http://www.pensoft.net/journals/zookeys/article/6233/abstract
| pmc =
| accessdate = 2020-01-19

}} Versioned wiki page: 2013-11-01, version 38846, https://species-id.net/w/index.php?title=Tangius_indicus&oldid=38846 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Staphylinidae
Genus: Tangius

Name

Tangius indicus Yin & Li sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material

(6 ♂♂, 3 ♀♀). Holotype: INDIA: ♂, labeled ‘INDIA, Meghalaya, Khasi Hills, 28.X, Mawphlang, 1800 m, Besuchet-Löbl, 78. / Holotype [red], Tangius indicus sp. n., det. Yin & Li 2013, MHNG’. Paratypes: INDIA: 4 ♂♂, 3 ♀♀, same label data as holotype [1 ♂ totally disarticulated and preserved in Euparal on plastic boards; 1 ♂ with left antenna and abdomen missing]; 1 ♀, labeled ‘INDIA: Darjeeling, distr., 13 km N. Ghoom, 1500 m, 15.X.1978, I. Löbl, Bes. nr. 15, litter’. Each paratype bear a type label as ‘Paratype [yellow], Tangius indicus sp. n., det. Yin & Li, 2013, MHNG’.

Description

Male (Fig. 1A). Length 2.91–2.97 mm. Surface almost glabrous. Head trapezoidal, slightly transverse, HL 0.61–0.62 mm, HW 0.64–0.65 mm; clypeus covered with sparse short setae anteriorly; Antennomeres II–X (Fig. 2A) each subcylindrical, apical antennomeres nearly oval, enlarged. Each eye composed of about 35 facets. Pronotum about as long as wide, PL 0.62–0.63 mm, PW 0.61–0.62 mm; roundly expanded at lateral margins; pronotal apex and base narrowed and truncate. Elytra (Fig. 2I) wider than long, EL 0.79–0.81 mm, EW 1.00–1.03 mm; inner two basal foveae close; discal suture extending to less than half elytral length. Hind wings fully developed. Metaventrite (Fig. 2J) with posterior margin narrowly and deeply notched medially. Protrochanters (Figs 2B, E) with small ventral denticle at middle; mesotibiae (Figs 2C, F) with broadly concave mesal margin before triangular preapical spine; metatrochanters (Figs 2D, H) with blunt ventral projection near apex; all femora with ringed sulcus near base. Abdomen slightly wider than long, AL 0.81–0.83 mm, AW 1.03–1.07 mm; sternite IX (Fig. 2K) nearly oval. Aedeagus (Figs 2M, N) length 0.57 mm; median lobe asymmetric, apex rounded, with sharp, weakly-sclerotized projection at right side; dorsal lobe well-sclerotized, slender, curved rightwards near apex. Female (Fig. 1B). Identical to male except antennomeres shorter, and mesotibiae lacking distal concavity and preapical tooth.. Measurements: BL 2.73–2.81 mm, HL 0.51–0.52 mm, HW 0.53–0.54 mm, PL 0.53–0.54 mm, PW 0.52–0.54 mm, EL 0.66–0.68 mm, EW 1.00–1.03 mm, AL 0.91–0.95 mm, AW 1.06–1.07 mm.

Comparative notes

The new species is closely allied to Tangius glabellus in sharing similar body size, general habitus, including the unusual head shape, and aedeagal structure (Figs 2L, M). Males of these two species can be best separated by the subcylindrical antennomeres VII–X in Tangius indicus, and the mesotibiae being broadly concave just before the preapical denticle (Fig. 2G), while Tangius glabellus has asymmetric, transversely trapezoidal antennomeres VII–X, and the mesotibiae with straight mesal margins (Fig. 2G). The females of Tangius indicus have relatively longer antennomeres than those of female Tangius glabellus.

Distribution

North India: Meghalaya, West Bengal.

Biology

One female paratype was collected from sifted litter, as inferred from the label data. Members of this genus are supposed to be inquilines of ants as they exhibit obvious morphological adaptions to myrmecophily, e.g. smooth body surface, compressed antennae, reduction of foveae, etc. The type series of Tangius glabellus was collected from the colony of an unidentified ant nesting under a fallen tree.

Etymology

The specific epithet refers to the country where the type series were collected.

Original Description

  • Yin, Z; Li, L; 2013: A new species of Tangius from north India (Coleoptera, Staphylinidae, Pselaphinae) ZooKeys, 346: 23-27. doi

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