The Ants of Africa
Genus Crematogaster
Crematogaster (Sphaerocrema) bequaerti Forel

Crematogaster (Sphaerocrema) bequaerti Forel

return to key Type location Zaïre (Cremastogaster Bequaerti, n. sp., Forel, 1913b: 319, worker & queen; Santschi, 1914d has an illustration) collected at Sankisia, by J. Bequaert - see below
atraplex (Crematogaster (Sphaerocrema) bequaerti For. variety atraplex Santschi new variety, in Wheeler, 1922: 155, worker) from Zaïre, Yakuluku, by Lang & Chapin - see below and
gerardi (Crematogaster Bequaerti For. var. Gerardi n. var., Santschi, 1915c: 252, worker) from Zaïre, Kataki, by Gérard - see
ludia (Cremastogaster Bequaerti Forel r. ludia n. stirps, Forel, 1913b: 321, worker) from Zaïre, collected at Lake Kabwe, by J. Bequaert - see
modica (Crematogaster (Sphaerocrema) modica n. sp., Santschi, 1926b: 222, illustrated, worker; as Crematogaster (Sphaerocrema)  bequaerti For. v. modica by Santschi, 1937g: 77 - see; junior synonym Cr. (Sph. bequaerti For. v. saga n. v., Santschi, 1937a: 56, worker from Kenya) from Uganda
mutabilis (Cremastogaster Bequaerti For. var. mutabilis nov., Santschi, 1914b: 93, illustrated, worker) from Kenya, Lumbwa - see
semiclara (Crematogaster (Sphaerocrema) bequaerti For. v. semiclara n. var., Santschi, 1928d: 66, worker) from Zimbabwe - see
(see Bolton, 1995) .

{Crematogaster (Sphaerocrema) bequaerti}Forel's (1913b) description, with ludia is at {original description}. Santschi's (1914b) illustrated description of mutabilis is at {original description}. Santschi's (1926b) description of modica is at {original description}. Santschi's (1928d) description of semiclara is at {original description}. Santschi's (1937a) description of saga, with a key to the varieties, is at {original description}.

{Crematogaster (Sphaerocrema) pedicels}Santschi's (1915c) description of gerardi is - WORKER - TL 5 mm; darker red brown than type, including the scapes most of the femora and tibiae; gaster black; appendages otherwise rust. More strongly sculptured, with mesonotal carina more pronounced; propodeal spines shorter, less divergent and more slender. Petiole node slightly shorter. Specimens from Katanga, Kataki, by Dr Gérard. He added the variety mutabilis Santschi conversely is lighter than the type and the variety ludia is smaller with longer scapes.

Wheeler (1922) has the description (by Santschi) of variety atraplex as - Worker TL 4 mm; rather dull yellow; gaster, postpetiole and femora yellowish brown, tips of propodeal spines brownish black, contrasting with thorax; in other respects like the type and var. mutabilis but median impression of pronotum feebler.

From the modern specimens, it seems probable that the species could be divided with a smaller, lighter at least on the head and alitrunk, and shinier form from more northern areas, from Kenya west to Guinea. I have separated these under Crematogaster bequaerti mutabilis. A distinction from the atraplex below is the presence on "mutabilis" of semi-decumbent hairs on the first tergite of the gaster.

{Crematogaster bequaerti}The photomontage of the type worker is collated from

{Crematogaster bequaerti}The photomontage of a cotype ? major worker is collated from

{Crematogaster (Sph) bequaerti atraplex}The photomontage of atraplex is collated from

Oxford University Museum specimens

Crematogaster (Sphaerocrema) bequaerti
B Taylor det.
Yves Braet

Zakouma N.P.
10°53′36″ N
 19°49′19″ E
421 m

Crematogaster (Sphaerocrema) bequaerti mutabilis
B Taylor det.
A Fotso Kuate
Crematogaster sp12
03°54'30" N
11°25'58" E
Visual in forest

{Crematogaster bequaerti}The photomontage is of a major worker from Chad, Zakouma NP; collector Yves Braet.

{Crematogaster bequaerti}The photomontage is of a worker from Cameroun, Matomb; collector A Fotso Kuate (fk crematogaster sp 12).

© 2007, 2008, 2011, 2013, 2015 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.