The Ants of Africa
Genus Crematogaster
Crematogaster (Crematogaster) occidentalis Mayr - new status

Crematogaster (Crematogaster) occidentalis Mayr - new status

return to key {link to the Hymenoptera Name Server} Type location Fernando Po (Crematogaster Menileki For. subspec. occidentalis nov. subspec., Mayr, 1902: 293, worker) from Fernando Po - see below .

Note: Readily distinguishable from Crematogaster (Cr.) menilekii by the short propodeal spines set part way down the declivity and the near square dorsal view of the postpetiole (divided into two distinct globes in menilekii).

Mayr's (1902) description of occidentalis is at {original description}. The variety atrigaster (Forel, 1913h) was described as primarily red with the pedicel, and gaster black, overall more slender. Forel's (1916) descriptions of satan and satanula are at {original description}. Santschi's (1921c) description of viehmeyeri is at {original description}.

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

TL ca 2.6 mm, HL 0.60, HW 0.60, SL 0.41, PW 0.38; CI 100, SI 69. This appears to be a minor worker; see the larger probable majors of atrigaster and viehmeyer below.

Wheeler (1922) listed occidentalis from Ghana and Benin (at Kouandé, by Desanti).

From Guinea, Bernard (1952) reported several findings of this ant common across much of the continent. The typical, brown, form was collected at Ziéla, Kéoulenta, sample areas B, F and E; variety spuria from savanna at Kéoulenta; variety satanula (yellow, Congo) from site B, Ziéla A3; an alate queen from Ravine I of Mount Tô seemed to be of this species.

Junior synonyms (here)

atrigaster (Crematogaster Menileki For. r. occidentalis v. atrigaster n. v., Forel, 1913h: 353, worker) from Zaïre, Congo da Lemba by R Mayné - see
TL ca 3.80 mm, HL 0.82, HW 0.85, SL 0.59, PW 0.53; CI 105, SI 69; general form very similar but distinct colour difference, shorter propodeal spines and squarer head; probable major worker, appears to match satan.
Creamtogaster atrigaster
satan (Crematogaster Menileki For. r. Satan n. stirps, Forel, 1916: 407, worker) from Zaïre, collected by H Kohl - see
TL ca 3.6 mm, HL 0.77, HW 0.77, SL 0.54, PW 0.45; CI 100, SI 72
Crematogaster satan
satanula (Crematogaster Menileki For. r. Satan For. v. satanula n. var., Forel, 1916: 407, worker) from Zaïre, St. Gabriel, by H Kohl; photomontage collated from
TL ca 2.6 mm, HL 0.60, HW 0.60, SL 0.41, PW 0.38; CI 100, SI 69
probable minor worker of satan
Crematogaster satanula
second satanula specimen - see Creamtoagster satanula
viehmeyeri (Crematogaster(Acrocoelia) Viehmeyeri nov. sp., Santschi, 1921c: 117, worker; stirps of menilekii, Santschi, 1926b: 217) from Tanzania -
TL ca 4.5 mm, HL 0.83, HW 0.88, SL 0.58, PW 0.53; CI 107, SI 68;
Crematogaster viehmeyeri
© 2016 - Brian Taylor CBiol FRSB FRES
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