The Ants of Africa
Genus Cataulacus
Cataulacus intrudens (F. Smith)

Cataulacus intrudens (F. Smith)

return to key "intrudens" group: return to key "rugosus" group{link to the Hymenoptera Name Server} Type location South Africa (Meranoplus intrudens, F. Smith, 1876d: 609, illustrated, all forms; placed in Cataulacus by Mayr, 1886c: 364) - queen see below
junior synonyms
batonga (Cataulacus Baumi For. r. Batonga n. stirps, Forel, 1913a: 114, worker) from Zimbabwe - see below
baumi (Catulacus Baumi n. sp., Forel, 1901d: 304, all forms) from Angola - see http://www.antweb.org/specimenImages.do?code=casent0904882
bulawayensis (Cataulacus Baumi For. r. Batonga For. v. bulawayensis, Forel, 1914d: 218; Arnold, 1917: 391, worker & queen) from Zimbabwe - see http://www.antweb.org/specimenImages.do?code=casent0909220
densipunctatus (Cataulacus johannae For. r. densipunctatus n. stirps, Stitz, 1923: 163, worker) from Namibia - no images on Antweb (September 2014)
foveosquamatus (Cataulacus foveosquamatus n. stirps, Santschi, 1937a: 58, illustrated, queen) from South Africa - see http://www.antweb.org/specimenImages.do?name=casent0912552
gazanus (Cataulacus baumi For. v. gazanus n. var., Santschi, 1928f: 208, worker) from Mozambique - see http://www.antweb.org/specimenImages.do?code=casent0912553
hararicus (Cataulacus hararicus n. spec., Forel, 1894b: 79, worker) from Ethiopia - see http://www.antweb.org/specimenImages.do?code=casent0909224
intermedius (Cataulacus intrudens Sm. stirps intermedius n. stirps, Santschi, 1917b: 287, worker) from Zimbabwe - see http://www.antweb.org/specimenImages.do?name=casent0912554
johannae (Cataulacus Johannae n. sp., Forel, 1895c: 250, worker & queen) from Madagascar - no images on Antweb (September 2014)
pseudotrema (Cataulacus baumi Forel stirps pseudotrema n. st., Santschi, 1926b: 244, worker) from Tanzania - see http://www.antweb.org/specimenImages.do?name=casent0912555
rugosus (Cataulacus intrudens Smith var. rugosus n. var., Forel, 1894b: 78, worker) from Mozambique - see http://www.antweb.org/specimenImages.do?name=casent0909234
subrugosus (Cataulacus rugosus For. var. subrugosus n. var., Santschi, 1914e: 26, worker; Santschi, 1937d: 236, queen) from South Africa (queen from Angola) - see http://www.antweb.org/specimenImages.do?name=casent0912557
umbilicatus (Cataulacus umbilicatus n. sp., Santschi, 1937a: 59, illustrated, queen) from Mozambique - see http://www.antweb.org/specimenImages.do?code=casent0900262
plus unavailable names
krugeri (Cataulacus rugosus For. krugeri var. nov. Prins, 1965d: 104, all forms) from South Africa - no images on Antweb (September 2014)
tangana (Cataulacus baumi Forel stirps pseudotrema Sants. v. tangana, Santschi, 1928f: 209, worker & queen) from Tanzania - see http://www.antweb.org/specimenImages.do?name=casent0912556
all forms known (in Bolton, 1974a: 43, illustrated) .


{Cataulacus intrudens batonga} A group with fine or reduced sculpturation on the basal gaster - intrudens plus batonga, hararicus and intermedius -
Smith's (1876d) description of Meranoplus intrudens from South Africa is at {original description} - note that although Smith appeared to refer to an illustration of the worker, for comparison with the queen, his illustrations are of the queen and the male. A partial transcription (wrongly titled Smith, 1879) was given by Arnold (1917: 391), this is at {original description}. Forel's (1913a) description of batonga from Zimbabwe is at {original description}. An illustrated translation was given by Arnold (1917: 389), this is at {original description}. Forel's (1894b) description of hararicus from Ethiopia is at {original description}. Forel's (1895c) description of johannae from Madagascar is at {original description}. Santschi's (1917b) description of intermedius from Zimbabwe is at {original description}. A translation was given by Arnold (1920a: 403, 404), this is at {original description}.


{Cataulacus intrudens}Bolton (1974a: 42ff) synonymized the many names given above and drew attention to this species, which he describes as the most common of the genus in southern and eastern Africa, and appears to recognise two main groups (also separated as far as South Africa was concerned in a key by Arnold, 1920a: 403), this is at {original description}. Bolton's modern description (1974a) is at {original description} and {original description}.


Cataulacus intrudens queenThe photomontage of the type queen is collated from http://www.antweb.org/specimen.do?name=casent0919586.
Bolton (1974a) related how he could not locate the F Smith queen in the BMNH and "this is presumed lost or destroyed". This specimen, however, clearly has all the right labelling, the original description being as Meranoplus intrudens. In his notes on ants in the BMNH collection, Mayr (1886c: 364) referred to Smith (1876) and that the Meranoplus intrudens belonged to Cataulacus. Mayr said that he had visited London in the summer of 1884. Curiously, Antweb does not seem to have found, or at least, photographed the BMNH specimen Bolton that designated as the lectotype worker.


{short description of image} The photomontage of the batonga cotype is collated from http://mcz-28168.oeb.harvard.edu/mcz/FMPro?-DB=Image.fm&-Lay=web&-Format=images.htm&Species_ID=29235&-Find


{short description of image} The photomontage of a specimen apparently wrongly identifed as wissmanni is collated from http://mcz-28168.oeb.harvard.edu/mcz/FMPro?-DB=Image.fm&-Lay=web&-Format=images.htm&Species_ID=29233&-Find


{Cataulacus intrudens krugeri}A group with coarse sculpturation on the basal gaster - rugosus plus baumi, bulawayensis, krugeri, pseudotrema, gazanus, subrugosus and tangana -
Forel's (1894b) description of rugosus from Mozambique is at {original description}. A translation was given by Arnold (1917: 392), this is at {original description}. Forel's (1901d) description of baumi from Angola is at {original description}. A translation was given by Arnold (1917: 388), this is at {original description}. Forel's (1914d: 218) description of bulawayensis from Zimbabwe is at {original description}. Arnold's (1917: 391, 1920a: 404) translation of bulawayensis is at {original description}. Santschi's (1914e) description of subrugosus from South Africa is at {original description}, Arnold's translation is on the rugosus card (above). Santschi's (1926b) description of pseudotrema from Tanzania is at {original description}. Stitz's (1923) description of densipunctatus from Namibia is at {original description}. Santschi's (1928f) description of gazanus from Mozambique is at {original description}. Santschi's (1928f) description of tangana from Tanzania is at {original description}. Prins's (1965b) description of krugeri from South Africa is at {pdf file}.

Smith (1876d) reported observations by J.M. Hutchison, at Weenen in South Africa, of the species making formicaria in the thorns of a species of acacia.


Queens only are known of - Santschi's (1937a) description of foveosquamosus from South Africa is at {original description} and his description of umbilicatus from Mozambique is at {original description}.


Oxford University Museum specimens

Cataulacus intrudens
B Taylor det.

Tanzania
G McGavin
tree 5-55

13.i.1997
Mkomazi

ppkd collection from Acacia nilotica; 37M 0375378 UTM 9571003 2
{album}
Cataulacus intrudens
B Taylor det.
Tanzania
G McGavin
tree 3-66

16.i.1996
Mkomazi
357.996' S
3748.128' E
pkd collection from Lannea schweinfurthii
1

Cataulacus intrudens
B Taylor det.
Tanzania
G McGavin
tree 3-67

16.i.1996
Mkomazi
357.996' S
3748.128' E
pkd collection from Lannea schweinfurthii 4
{album}
Cataulacus intrudens
B Taylor det.
Tanzania
G McGavin
tree 2-15

9.v.2007
Awae II
0354'30" N
1125'58" E
.
2

Cataulacus intrudens
B Taylor det.
Namibia
H Campbell
Tree 09

07.ix.2009
Windhoek
2313.836' S
1824.097' E
Kuzikus Wildlife Reserve; 1340 m
inside thorn on Acacia erioloba

1
{album}
Cataulacus intrudens
B Taylor det.
Namibia
H Campbell
Tree 166
31.viii.2009
Windhoek
2312.557' S
1823'25" E
Kuzikus Wildlife Reserve; 1340 m
inside thorn on Acacia erioloba
1
{album}

{Cataulacus intrudens Tanzania variant}The photomontage is of a worker (hw 1.05 mm; dark scape; dark eyes) from Tanzania, Mkomazi Game Reserve, collector G McGavin (Tz 3-67). This appears close to the description of the variety tangana given by Santschi (1928f), type location Tanga, Tanzania.


{Cataulacus intrudens}The photomontage is of a large worker (HW 1.35 mm; orange scape; orange eyes) from Tanzania, Mkomazi Game Reserve; collector G McGavin (tz 5-55-3).


{Cataulacus intrudens}The photomontage is of a smaller worker (HW 1.1 mm) from Tanzania, Mkomazi Game Reserve; collector G McGavin (tz 5-55-3-2).


{Cataulacus intrudens subrugosus}The photomontage of subrugosus is collated from The Smithsonian Institute cotype images at http://ripley.si.edu/ent/nmnhtypedb/public/specimeninfopage.cfm?publicconsumption=1&typespecimenID=759

Note: this is labelled as a cotype but was collected in Angola, Kambisa and Kampulu, Kasinga Region, vii.1932, 80 km S. of Vila-de Ponte (Santschi, 1937d); whereas the type location was in South Africa.

Santschi's (1937d) illustrated description of the subrugosus queen is at {original description}

{Cataulacus intrudens}The photomontage is of a small worker (HW 0.8; orange scape; orange eyes) from Namibia, Mkomazi Game Reserve; collector H Campbell (Tree 09).


{Cataulacus intrudens}The photomontage is of a large worker (HW 1.35 mm; orange scape; dark eyes) from Namibia, Kuzikus Wild Life Reserve; collector H Campbell (Tree 166).

Contents
2007, 2009, 2010, 2011, 2012, 2015, 2016 - Brian Taylor CBiol FRSB FRES
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