Discothyrea icta

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):
Weber, N. A. (1939) New ants of rare genera and a new genus of ponerine ants.. Annals of the Entomological Society of America 32 : 101 – 102, doi. Versioned wiki page: 2014-07-08, version 54766, https://species-id.net/w/index.php?title=Discothyrea_icta&oldid=54766 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Weber1939AnnalsoftheEntomologicalSocietyofAmerica32,
author = {Weber, N. A.},
journal = {Annals of the Entomological Society of America},
title = {New ants of rare genera and a new genus of ponerine ants.},
year = {1939},
volume = {32},
issue = {},
pages = {101 -- 102},
doi = {TODO},
url = {http://antbase.org/ants/publications/3014/3014.pdf},
note = {Versioned wiki page: 2014-07-08, version 54766, https://species-id.net/w/index.php?title=Discothyrea_icta&oldid=54766 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - New ants of rare genera and a new genus of ponerine ants.
A1 - Weber, N. A.
Y1 - 1939
JF - Annals of the Entomological Society of America
JA -
VL - 32
IS -
UR - http://dx.doi.org/TODO
SP - 101
EP - 102
PB -
M1 - Versioned wiki page: 2014-07-08, version 54766, https://species-id.net/w/index.php?title=Discothyrea_icta&oldid=54766 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Weber1939Annals of the Entomological Society of America32">{{Citation
| author = Weber, N. A.
| title = New ants of rare genera and a new genus of ponerine ants.
| journal = Annals of the Entomological Society of America
| year = 1939
| volume = 32
| issue =
| pages = 101 -- 102
| pmid =
| publisher =
| doi = TODO
| url = http://antbase.org/ants/publications/3014/3014.pdf
| pmc =
| accessdate = 2024-12-22

}} Versioned wiki page: 2014-07-08, version 54766, https://species-id.net/w/index.php?title=Discothyrea_icta&oldid=54766 , contributors (alphabetical order): PlaziBot.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Hymenoptera
Familia: Formicidae
Genus: Discothyrea

Name

Discothyrea icta Weber, N. A., 1939Wikispecies linkPensoft Profile

  • Discothyrea icta Weber, N. A., 1939, Annals of the Entomological Society of America 32: 101-102.

Description

Female (Dealate).-Length, 1.2 mm. Head, excluding mandibles, about one and one-seventh times longer than broad back of eyes, with sides convex, rounding smoothly into convex occipital corners, occipital margin transverse, anterior clypeal margin smoothly impressed medially; between bases of antennae, is a laterally compressed, acute tooth, curved posteriorly, and convex anteriorly; eyes large, feebly convex, separated from the mandibular insertions by a distance equal to less than their diameter; ocelli large and prominent; mandibles trigonal, terminating in acute apical tooth, cutting margin proximally with a much smaller, acute tooth; antennae 7-jointed, scapes clavate, three-fifths as long as funiculi; terminal joint 0.18 x.09 mm., slightly longer than remainder of funicular joints taken together. Thorax from above rectangular, broader through pronotum than through epinotum, the latter deeply and broadly impressed posteriorly, thus forming distinct and projecting rounded angles. Petiole in profile with cuneate node rounded at apex, ventrum with large lamella convex in front, slightly concave behind, the two surfaces forming a right angle. 1st gastric segment with anterior vertical face impressed at junction with petiole; 2nd gastric segment larger than 1st, the remaining segments largely retracted beneath 2nd; sting fine, short, exserted. Legs small, moderately short.

Surface of body sub-lucid, smooth but for microscopic punctations. Pilosity of fine, whitish, appressed pubescence. Light yellowish brown, eyes and ocellar bases black.

Materials Examined

Described from two dealate females taken by myself under leaves at the base of a saman tree (Pithecolobium saman) on the grounds of the Imperial College of Tropical Agriculture, St. Augustine, Trinidad, B. W. I., August 3, 1935.

Diagnosis

This species is much smaller than the female genotype, D. testacea, or the female of Dr. Bruch's species, D. neotropica. From neotropica it differs further in having a differently shaped projection (frontal carinae) between the antennal bases, in shape of petiole, including the ventral projection, and in relative proportions of the gastric segments. From the worker of D. denticulata, sp. nov. the females differ in the shape of the projection between the antennal bases, in proportions of antennal terminal joint, in shape of petiole, including the ventral projection, and in proportions of gastric segments.

Taxon Treatment

  • Weber, N. A.; 1939: New ants of rare genera and a new genus of ponerine ants., Annals of the Entomological Society of America 32: 101-102. 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.