Wasmannia auropunctata (Roger)
Type location Cuba (Tetramorium
auropunctatum nov. sp., Roger, 1863a: 182, all forms; in Wasmannia,
Forel, 1893g: 383) - no images on Antweb (April 2015)
junior synonyms likewise neotropical except for atomum (Xiphomyrmex
atomum n. sp., Santschi, 1914d: 370,
worker; synonymy by Wheeler, 1922: 912) from Gabon, Libreville,
by F. Silvestri - see below
(see Bolton, 1995) .
(1863a) description is at . Forel's (1893g) description of the queen
and male is at . Santschi's (1914d)
description of Xiphomyrmex atomum is at and seems very accurate.
WORKER - minute, TL less than 2.0 mm. Antennae
11-segmented, with a 3-segmented club. Antennal scrobes present,
bounded below by a weak longitudinal carina running above the eye.
Anterodorsal angles of the pronotum acute, pronotum strongly marginate
anteriorly. Promesonotal suture absent, metanotal grove weakly
impressed. Propodeum bispinose, metapleural lobes present.
(1972) described it as insignificant and yellow-brown, worker only 1.4
mm long. Mainly nesting in the ground either between dead leaves or in
rotten wood, or especially in the dry season, in soil at the base of
trees. Occasionally nesting in dead wood on trees.
This is included because Bolton (1973a) noted that
the species had been introduced into the cocoa growing areas of
Cameroun. It is a pantropical tramp species, and a specimen from
the USA is pictured by Hölldobler & Wilson (1990, page 125, shown
right). Entwistle (1972) related how it had been introduced to Africa
prior to 1921, when it was recorded by Wheeler (1922) from Libreville
(found by F. Silvestri, "evidently introduced from South America") in Gabon.
By the time Entwistle wrote, it had spread extensively into the region
of Kribi, some 112 km south of Douala, in Cameroun. There it
had become a useful component of biological control against mirids (de
photograph left is of Wasmannia auropunctata
from Guarambaré, Dept. Central, Paraguay and is reduced from the superb
Myrmecos.net original taken by Alex Wild (click to see original).
Oxford University Museum
B Taylor det.
A Fotso Kuate
The photomontage is of a worker from Cameroun; Nko'ondo;
collector A Fotso Kuate (fk unmounted 63).
is of the type of atomum from Libreville, Gabon. Original
images taken by J Longino; collated from the AMNH collection at Antbase.org
See also http://www.antweb.org/specimenImages.do?name=casent0912541