| The Ants of Africa Genus Camponotus subgenus Myrmosericus |
|
| Genus Camponotus |
Subgenus definition Forel (1912i: 91) - with silky appearance,
most with a pubescent fleece.
Also clypeus carinate, with pronounced anterior, usually rectangular,
lobe (as Tanaemyrmex); petiole a narrowly nodiform; integument
entirely opaque; very finely sculptured, silky and more or less covered
with rather abundant pilosity, especially the gaster; nest in earth or
sand.
Minors with elongated heads, in some cases highly elongated.
Emery (1895h) provided a key to what he regarded as subspecies and
varieties of rufoglaucus. This is at
.
Arnold (1924) gave a general description of the Genus characters - this is
at
and provided a key to -
.
Key to species
| ¤ | Worker only described; TL 6.0 mm; extremely finely sculptured and moderately shiny; with all over very fine yellowish pubescence; generally rust-yellow with extremiities and most of appendages brownish | Zanzibar - Tanzania - druryi |
| 1 | Entirely black; gaster with weak pubescence | 2 |
| -- | Pubescence on gaster very dense hiding colour and sculpture; if not then head partly red | 3 |
| 2 | Major
TL 9.5 mm; fundamental sculpture reticulo-punctate but finer than petersii;
almost all blackMinor with highly elongated head |
South Africa - angusticeps |
| -- | Major TL 11.0-12 mm; scapes and tibiae flattened but less than petersii | Southern Africa and Zaire - eugeniae |
| -- | Major
TL 13.2-15 mm; scapes and tibiae flattened; fundamental sculpture
reticulo-punctate; black with appendages ferruginousMinor TL 9.5-10 mm; with highly elongated head |
Southern Africa - petersii |
| 3 | Propodeum with dorsum concave | 4 |
| -- | Propodeum with dorsum not concave | 5 |
| 4 | TL 7.0-8.7 mm; propodeum deeply concave; dorsal edge of petiole scale subacuminate; overall brownish-red, gaster blackish-brown; pubescence on gaster greyish-white with slight yellow tint | South Africa - valdeziae |
| -- | ![]() TL
7.7-10 mm; propodeum shallowly concave; petiole scale with straight
dorsal edge; mostly yellowish brick-red to dark brick-red, gaster dark
brown; pubescence on gaster pale greyish-golden arranged laterally to
give appearance of dark and light bands |
Pan-African - vestitus |
| 5 | ![]() Major
TL 8-9 mm; propodeum distinctly angular specially in the major; tibiae
weakly compressed, usually partly red |
Mozambique, Zaire, Ethiopia - cinctellus |
| -- | Propodeum
with a rounded transition from dorsum to declivity |
6 |
| 6 | Pubescence
golden or golden yellow, converging towards distinct mid-line on gaster
dorsum |
rufoglaucus-group 7 |
| -- | ![]() Pubescence
on gaster otherwise, sometimes weakly convergent towards midline;
pubescence greyish-golden |
Panafrican - flavomarginatus |
| 7 | Tibiae
strongly compressed; head and part of the alitrunk red |
Zaire and eastern Africa - rufoglaucus |
| -- | Tibiae not strongly compressed; head black or brown | 8 |
| 8 | Major large, TL 6.0-9.0 mm; elongated, black | zulu ? ssp of rufoglaucus |
| -- | Major TL 4.5-7.0 mm; gaster with golden fleece, very bright; mainly black | South Africa - cosmicus |
| -- | ![]() Major
TL 4.0-6.0 mm; alitrunk dorsum vaulted; alitrunk and legs red; gaster
black |
Ethiopia - zimmermanni |
| Genus page | © 2007 - Brian Taylor CBiol
FIBiol FRES 11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K. |
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