Tetramorium electrum

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This page should be cited as follows (rationale):
Bolton, B. (1979) The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World.. Bulletin of the British Museum (Natural History) Entomology 38 : 144 – 144, doi. Versioned wiki page: 2014-07-15, version 59272, https://species-id.net/w/index.php?title=Tetramorium_electrum&oldid=59272 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Bolton1979BulletinoftheBritishMuseum(NaturalHistory)Entomology38,
author = {Bolton, B.},
journal = {Bulletin of the British Museum (Natural History) Entomology},
title = {The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World.},
year = {1979},
volume = {38},
issue = {},
pages = {144 -- 144},
doi = {TODO},
url = {http://atbi.biosci.ohio-state.edu/HymOnline/reference-full.html?id=6435},
note = {Versioned wiki page: 2014-07-15, version 59272, https://species-id.net/w/index.php?title=Tetramorium_electrum&oldid=59272 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World.
A1 - Bolton, B.
Y1 - 1979
JF - Bulletin of the British Museum (Natural History) Entomology
JA -
VL - 38
IS -
UR - http://dx.doi.org/TODO
SP - 144
EP - 144
PB -
M1 - Versioned wiki page: 2014-07-15, version 59272, https://species-id.net/w/index.php?title=Tetramorium_electrum&oldid=59272 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Bolton1979Bulletin of the British Museum (Natural History) Entomology38">{{Citation
| author = Bolton, B.
| title = The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World.
| journal = Bulletin of the British Museum (Natural History) Entomology
| year = 1979
| volume = 38
| issue =
| pages = 144 -- 144
| pmid =
| publisher =
| doi = TODO
| url = http://atbi.biosci.ohio-state.edu/HymOnline/reference-full.html?id=6435
| pmc =
| accessdate = 2024-12-21

}} Versioned wiki page: 2014-07-15, version 59272, https://species-id.net/w/index.php?title=Tetramorium_electrum&oldid=59272 , contributors (alphabetical order): PlaziBot.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Hymenoptera
Familia: Formicidae
Genus: Tetramorium

Name

Tetramorium electrum Bolton, B., 1979Wikispecies linkPensoft Profile

  • Tetramorium electrum Bolton, B., 1979, Bulletin of the British Museum (Natural History) Entomology 38: 144-144.

Description

(Fig. 20) Holotype worker. TL 4.9, HL 1.14, HW 1.06, CI 93, SL 0.82, SI 77, PW 0.76, AL 1.32. Mandibles longitudinally striate but only shallowly so, the sculpture reduced in some paratypes. Clypeal margin with a median notch or impression. Frontal carinae long and strong, reaching back almost to the occipital corners and surmounted by a narrow raised rim or flange. Antennal scrobes shallow but broad, the scrobal area above the eye traversed by about four widely spaced longitudinal rugulae, the space for accommodation of the scape unsculptured. Maximum diameter of eye about 0.20. Pronotal dorsum in dorsolateral view feebly transversely concave, the remainder of the dorsum more or less flat transversely and marginate laterally so that sides and dorsum meet in a sharp angle. Propodeal spines very long, in profile downcurved along their length. Metapleural lobes reduced to low, rounded vestiges (Fig. 20), not at all triangular and scarcely prominent in profile. Petiole with a long peduncle and relatively high node (Fig. 20), in dorsal view very slightly longer than broad. Dorsum of head with spaced-out longitudinal rugulae, many of which are discontinuous and which do not form a reticulum occipitally. Spaces between rugulae with slight, very faint ground-sculpture, extensively shining. Dorsal alitrunk centrally with a series of parallel, strong longitudinal rugae which run from anterior pronotum to propodeum. Outside of these are a few disorganized longitudinal rugae and close to the margins there is a tendency for a rugoreticulum to form. Dorsal surfaces of both petiole and postpetiole with faint traces of weak rugulation, which is stronger on the sides; gaster unsculptured. All dorsal surfaces of head and body with numerous fine, acute hairs. Colour dark brown. Paratype workers. TL 4.7 - 5.2, HL 1.04 - 1.20, HW 0.96 - 1.16, CI 92 - 96, SL 0.74 - 0.86, SI 72 - 78, PW 0.72 - 0.82, AL 1.24 - 1.40 (11 measured). Maximum diameter of eye c. 0.20 (about 0.17 - 0.19 x HW). As holotype but some specimens darker in colour, blackish brown, and a few with the mandibular sculpture reduced and quite faint.

Materials Examined

Holotype worker, Madagascar: Rte d'Anosibe, km 33, 4 - 12. iv. 1975 forest humus and litter, AB 44 (A. Peyrieras) (MCZ, Cambridge). Paratypes. Madagascar: 11 workers with same data as holotype (MCZ, Cambridge; BMNH); one worker, vic. Andasibe (= Perinet) 950 - 980 m, 2 - 6. ii. 1977 {W. L. & D. E. Brown) (MCZ, Cambridge).

Discussion

The exceptionally long, downcurved propodeal spines, reduced metapleural lobes and large size will differentiate electrumHNS from all members of its group. The only other species of the group in which the metapleural lobes are reduced is kelleriHNS, but here they are still prominent and the node is very differently constructed (compare Figs 13 and 20).

Taxon Treatment

  • Bolton, B.; 1979: The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World., Bulletin of the British Museum (Natural History) Entomology 38: 144-144. doi
Link to Plazi.org

This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.

No known copyright restrictions apply on this formal expression of scientific knowledge. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for details.