The Ants of Africa
Genus Euponera
Euponera sjostedti (Mayr)

Euponera sjostedti (Mayr)

return to key {link to the Hymenoptera Name Server} Type location Cameroun (Ponera Sjöstedti nov. spec., Mayr 1896: 231, worker; Santschi, 1914d: 315, queen; new status Schmidt & Shattuck, 2014: 87) collected from a dead palm stump by Y. Sjöstedt - see below
worker & queen described (see Bolton, 1995) .

Mayr's (1896) descriptions are at {original description}. and, for the sexual stages, {original description}. Santschi's (1914d) description of the queen is at {original description}.

Wheeler (1922, illustrated, full profile and full-face head) had other Cameroun records from Victoria (F. Silvestri) and Mbalmajo to Ekeneli (G. Schwab); plus a Zaïre finding, where they were nesting in or under rotting palm trunks.

Also found in Ghana cocoa, foraging and nesting in dead wood on the ground at the Mampong Cemetery farm (Room, 1971).

{Pachycondyla sjostedti} Nigeria specimens (as Bothroponera sjostedti, Taylor, 1976: 41). WORKER. TL 6.84 mm, HL 1.12, HW 1.00, SL 0.75, PW 0.75
Colour red-brown. All over reticulopunctate, dense and fairly coarse, except on posterior face of the propodeum which is smooth and shiny. Pilosity short and dense, tending to obscure sculpturation. Erect hairs moderately long and relatively abundant. Eye very small, recessed into head fairly close to the anterior margin. Mandibles with a distinct basal dorsolateral fovea. Propodeum distinctly marginate laterally. Wheeler (1922) regarded the small size (for Ponerines), pale colouration and eyes reduced to a few ommatidia as distinctive. I found it under a rotting log with termites.

{Pachycondyla sjostedti}The photomontage of the type worker is collated from

Oxford University Museum specimens

Euponera sjostedti
B Taylor det.
A Fotso Kuate
Pachycondyla sp14

Awae II
03°54'30" N
11°25'58" E
Quadrat in fallow

{Pachycondyla sjostedti}The photomontage is of a worker from Cameroun; Awae II; collector A Fotso Kuate (fk pachycondyla sp14).

{Pachycondyla sjostedti}The photomontage is collated from
Collection Information: Specimen Code CASENT0102999; Locality Gabon: La Makandé Foret des Abeilles; Collection codes: ANTC5356; Date: Jan-Feb 1999; Collected by: S.Lewis (two specimens)

{Pachycondyla undet queen}I collected this photomontage from the Antweb site at (posted 17.ix.2009). As can be seen it is labelled "Pachycondyla testacea" and identified by W L Brown.

Pachycondyla testacea, now Mesoponera testacea, however is known solely from the Bernard (1952) description of a single worker. That is a typical Mesoponera (Xiphopelta) with long mandibles and small eyes set some distance back from the anterior margin of the head. Moreover, it is a shiny species with sparse pubescence.

Few Xiphopelta queens have been described and only Mesoponera ambigua is shown in an image. That I repeat below. As described for the subgenus queens, it differs little from the known workers with long mandibles and only moderate sized eyes set back from the anterior margin.

This Brown identified queen clearly is not the queen of testacea. The wing venation is similar to that of ambigua and, at least, places the species in Pachycondyla. Two features might place it in Xiphopelta - the long first funiculus segment and the median tooth on the anterior margin of the clypeus.

Now, June 2014, it appears as Parvoponera darwinii madecassa.

Mayr has the sjostedti queen as TL 5.3 mm. The colour of the Ivory Coast queen seems paler than the Cameroun type forms but the overall features are a good match for the description and the later Santschi drawing.

{short description of image}

{short description of image}.

© 2007, 2008, 2011, 2012, 2014 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.