The Ants of Africa
Genus Crematogaster
Crematogaster (Crematogaster) excisa Mayr

Crematogaster (Crematogaster) excisa Mayr

return to key {link to the Hymenoptera Name Server} Type location Congo (Cremastogaster excisa nov. spec., Mayr, 1895: 139, worker) Loango - see below
worker only described (see Bolton, 1995) .


Raised to separate species status:
Crematogaster (Cr.) cavinota (Cremastogaster excisa Mayr r. cavinota n. stirps, Stitz, 1916: 385, illustrated, worker)
with junior synonym bomaella (Crematogaster (Acrocoelia) excisa Mayr stirps bomaella n. var., Santschi, 1935a: 258)
Crematogaster (Cr.) lacustris (Cremastogaster excisa stirps lacustris nov., Santschi, 1914b: 99, worker)
Crematogaster (Cr.) maledicta (Cremastogaster excisa Mayr v. maledicta n.v., Forel, 1914d: 236, worker & queen) from Zimbabwe; Santschi (1920b: 15).

Mayr's (1895) description is at {original description}.


{Crematogaster excisa} The photomontage of a syntype worker is collated from http://www.antweb.org/specimen.do?name=casent0919666.

Assuming the Antweb scale lines are correct (the profile and full face scales give the same head size), this specimen is smaller than the range given by Mayr (1895), which was TL 3.5-3.8. This appears to be TL ca 3.2 mm, HL 0.63, HW 0.66.

Mayr listed it as from "Loango in tropical West Africa" collected  by Dr Brauns, plus others from Sierra Leone from Dr Staudinger.


{Crematogaster (Cr.) sp T1}Nigeria specimens (Crematogaster (Crematogaster) species T¹, Taylor, 1979: 27)

Size and form appears to match the type.

TL variable 2.18-2.64 mm. Largest HL 0.70, HW 0.70, SL 0.56, PW 0.40

Colour medium-dark brown, shiny. Lateral alitrunk very faintly striate. Pilosity sparse, few erect hairs. Alitrunk profile a flattened convex curve with a slight depression at the metanotal groove. Propodeal spines halfway down the declivity, no more than sharp denticles. Subpetiolar spine small, acute and triangular.

In Nigeria I found it on cocoa and once nesting in dead wood on a garden tree.


Oxford University Museum specimens

Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2667
18.iv.2012
Glo, F.E.A.
06°55'05'' N
02°32'06'' E
Mangifera indica orchard
cohabiting with Oecophylla longinoda

2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2671
10.v.2012
Korobourou
09°22'13'' N
02°40'16'' E 
Mangifera indica orchard
weak antagonist of Oecophylla longinoda
nesting under bark
3
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2709
7.xii.2011
Glo, F.E.A.
06°55'05'' N
02°32'06'' E
Mangifera indica orchard 3
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2823
10.vi.2010
Koro
08°54'00'' N
02°34'00'' E
Mangifera indica orchard
CAF2/PFRS/T53 (nuit)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2829
8.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT4/GFN/T59/Parcelle 2 (jour)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2836
8.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T27/Parcelle 2 (nuit)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2838
10.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T71/Parcelle 2 (jour)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2843
7.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T23/Parcelle 2 (jour)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2845
8.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T53/Parcelle 2 (jour)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2846
10.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T68/Parcelle 2 (nuit)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2847
10.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T55/Parcelle 2 (jour)   
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2855
8.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T55/Parcelle 2 (jour)
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2857
10.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T72/Parcelle 2 (jour)
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2858
7.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T57/Parcelle 2 (jour)
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2860
10.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T69/Parcelle 2 (jour)
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2869
15.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T80/Parcelle 2 (nuit)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2870
15.vi.2010
Koro
09°22'21'' N
02°40'13'' E
Mangifera indica orchard
CAT2/PFRS/T72/Parcelle 2 (jour)
1
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2901
13.ix.2012
Korobourou
09°22'13'' N
02°40'16'' E
Mangifera indica orchard
Quadrat 3-1, tube 6, variété: ?
Arboreal
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2932
7.x.2012
Korobourou
09°22'13'' N
02°40'16'' E
Mangifera indica orchard
Quadrat 1, tube 1, variété: Kent
Arboreal
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2942
8.ix.2012
Korobourou
09°22'13'' N
02°40'16'' E 
Mangifera indica orchard
Quadrat 1, tube 3, variété: Gouverneur
Arboreal, nest in hollow branch
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2972
8.xi.2012
Koro
09°22'21'' N
02°40'13'' E
On Mangifera indica; Eldon T2-5
commensal with Oecophylla longinoda
nesting under bark
2
{album}
Crematogaster (Crematogaster) excisa
B Taylor det.
Benin
J-F Vayssieres
RVA 2973
8.xi.2012
Koro
09°22'21'' N
02°40'13'' E
On Mangifera indica; Eldon T2-6
commensal with Oecophylla longinoda
nesting under bark
2
{album}

Crematogaster excisa The photomontage is of a worker from Benin, Glo; collector J-F Vayssieres (RVA2667).


Crematogaster excisa The photomontage is of a worker from Benin, Glo; collector J-F Vayssieres (RVA2709).

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© 2007, 2008, 2011, 2012, 2014, 2016, 2018 - Brian Taylor CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.

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