Key to Afrotropical Camponotus

1

 * Petiole without spines .....2


 * Petiole with spines .....1000 ([[Phasmomyrmex species group)]]

2
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 * Clypeus very distinctive, with its posterior third triangular (in the major caste), and raised over the anterior portion; a row of long hairs inserted into the border of this posterior third directed downwards, surpassing the clypeal anterior line and overhanging the mandibles; underside of the head and mandibles with long “J” shaped quetae .....3 ([[Myrmopsamma species group)]] (Sandy areas of Southern africa)


 * Clipeus and mandibulae without this quetae .....10

3
(Myrmopsamma species group) return to couplet 2

File:Casent0905189_h_1_high.jpg NOTES: mystaceus exanguis: very pale, decoloured (probable synonymy?) mystaceus kamae: very dark, brownish black. Chk head sculpture, maybe different
 * Minor: Eyes very big, its length more than half head length. Major XXXX ..... Camponotus simulans
 * Minor: Eyes smaller, its length less than one third of head length. Major:XXXX ..... Camponotus mystaceus

10
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 * Mesopropodeal suture present and conspicuous, forming a conspicous “V” or “U” shaped furrow. Mesonotum and propodeum do not follow a continuous, smooth curved line; sometimes propodeum conspicuously separated from mesonotum and can be located lower or upper the mesosotum level .....11
 * Mesopropodeal suture absent or faint, never forming a conspicous “V” or “U” shaped furrow. Mesonotum and propodeum follow a continuous, smooth curved line .....100

11
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 * Propodeum swollen, sometimes raised over the mesonotum level, sometimes armed with small teeth. The posterior side of the propodeum normally concave, although sometimes only slightly so. Superior and lateral faces of the propodeum usually separated by ridges than can form small obtuse triangular teeth posteriorly. Petiole never slender or squamiform, but thick and normally cubical or rectangular (Subg. Orthonotomyrmex).....12


 * Propodeum neither raised over the mesonotum level nor with its posterior side concave and/or armed with small teeth. Petiole squamiform .....30

12
return to couplet 11


 * Whole body without erect quetae, except some small, short, isolated ones ….. Camponotus sankisianus
 * Erect quetae present in mesosoma, petiole and gaster .....13

13
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 * Pubescence not present or, if present, short and stout. Most of the quitinous surface is visible and does not have a silky appeareance .....14


 * Mesosoma, petiole, coxae and gaster covered by a long, dense white or yellow pubescence that can impede the vision of the quitinous surface, providing an overall silky appeareance .....17

14
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 * Mesosoma, petiole and gaster without any kind of pubescence or adpressed quetae. Long, thin white hairs present in mesosoma and petiole, but absent from the gaster except in the distal band of each tergite. Longitudinal striae present in mesosoma and petiole  ….. Camponotus liogaster
 * Mesosoma, petiole and gaster covered with notorious thick, small, white adpressed quetae. Some stout erect quetae present in mesosoma, petiole and gaster. Sculpture in head, mesosoma and petiole areolate and notorious ….. Camponotus scabrinodis

17
return to couplet 13


 * Head covered with very dense, long, white pubescence. Overall pilosity white .....18
 * Only the clypeus covered with dense, long, white pubescence but the rest of the head only with very scattered adpressed, isolated hairs. Mesosoma, petiole and gaster covered in long, very dense yellow pubescence ….. Camponotus sericeus

18
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 * Head pubescence very long and dense, clypeus and genae almost completely covered and no patches of cuticula can be seen. Propodeum not ridged, but almost semispherical. Gaster densely covered with very long erect white hairs, its length comparable to the petiole height..... Camponotus cubangensis
 * Head pubescence abundant, but sparser, clypeus and genae with visible cuticula present in ample zones. Propodeum ridged at least in its posterior half. Gaster with sparse erect hairs, its length not comparable to petiole height ….. Camponotus mayri

30
return to couplet 11


 * Gaster covered with very dense, long yellow pubescence. Length of pubescent hairs bigger than distance between rows, thus covering the whole surface and in most cases almost completely covering the quitinous surface .....31
 * Gaster pubescence sparse to non-existant. Length of pubescent hairs smaller than distance between rows, thus not covering the whole surface and leaving ample zones of the quitinous surface exposed .....40

31
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 * Overall pilosity pale yellow to yellowish grey. Gastral pubescence thin and sparse, not covering completely the tergites and leaving ample zones of tegument seen ..... Camponotus arminius


 * Overall pilosity yellow. Gastral pubescence long and abundant, covering completely the tergites and giving the whole gaster a woolly appeareance .....32

32
return to couplet 31
 * Clypeus with deep, notorious circular fosulae where quetae are inserted .....33
 * Clypeus without deep, notorious circular fosulae where quetae are inserted .....34

33
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 * Clypeus and genae covered with long, stout, conspicuous yellow quetae ..... Camponotus barbarossa
 * Clypeus not covered with long, stout, conspicuous yellow quetae, although some isloated quetae con be present ..... Camponotus kollbrunneri

34
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 * In dorsal view, anterior half of pronotum rounded. Declivity of propodeum obtuse..... Camponotus chrysurus
 * In dorsal view, anterior half of pronotum angulous, almost marginated, the lateral and dorsal faces forming an angle. In lateral view, declivity of propodeum a square angle..... Camponotus amphidus

40
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 * Head surface covered with profound, conspicuous circular hair pits ….. Camponotus maynei
 * Head surface not covered with profound, conspicuous circular hair pits .....41

41
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 * Dorsal outline of the mesonotum almost bare. Long stout quetae present only in numbers in the posterior propodeal line and scattered over the mesonotum. Gaster pubescence very scattered and, when existant, composed by minute, very thin hairs, giving the gaster a glabrous appeareance, except fot the long white scattered quetae ….. Camponotus braunsi
 * Dorsal outline of the mesonotum densely covered with long, stout quetae .....42

42
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 * Head densely reticulated. Suberect quetae present on the occipital line. Whole body covered with long, stout, white quetae, those of the gaster comparable in length to petiole height ….. Camponotus erinaceus
 * Head smooth. Occipital line without quetae except in its medial line running in pairs. Lenght of erect quetae on the gaster much smaller than those on the mesosoma, these comparable to petiole height ….. Camponotus vividus

100
return to couplet 10
 * Head strongly narrowed posteriorly, trapezoidal, with its anterior width at the base of the mandibles more than doubling the occipital width. Mandibles with five teeth, the apical very long. Clypeus without carinae. Maxillary palps, antennae and legs very long, with antennae length tipycally more than three times the head length ..... 101 (Subg. Myrmoxygenys)
 * Head from ovoid to rectangular, but never trapezoidal with its anterior width at the base of the mandibles more than doubling the occipital width. Mandibles in various shapes (CHK NOT apical very long). Clypeus with or without carinae. Antennae length less than three times the head length (CHK!!!) ..... 110

101
return to couplet 100
 * Overall colour pale yellow to light brownish-yellow, with zones near the occiput slightly darker ..... Camponotus caesar
 * Head dark brown to black, much darker than the rest of the body. Mesosoma and gaster can present zones dark yellow to brownish black ..... Camponotus caesar imperator

Typus of caesar probably a newly hatched worker. All the images seen and the two workers in my collection answers to imperator. Quetae variable. One worker at my collection only with one type of pilosity in the scpaes, lacking the longest quetae. Mesosoma bare in the sides, gaster much less pilous (as in caesar type), but colour pattern remains the same than imperator. This worker (kg03208) smaller than (kg03205). If the same species, than very considerable allometry growth (scapes considerably longer, much more hairy

110
return to couplet 100


 * Pronotum angled, or at least the dorsal and lateral surfaces meeting at a distinct angle. Sometimes a blunt tooth can appear … .....11 (Myrmopiromis & Myrmisolepis species groups)


 * Pronotum rounded … .....50

x11
return to couplet 10


 * Gaster covered with thick, conspicuous yellow quetae, although bare patches can be present .....12 (fulvopilosus sp group) (brevisetosus, detritus, fulvopilosus, storeatus)
 * Gaster without thick, conspicuous yellow quetae .....16

16
return to couplet 11
 * Gaster and petiole with thick, conspicuous white quetae. Some can also appear on mesonotum and propodeum … Camponotus niveosetosus
 * Gaster and petiole without this kind of quetae. Long quetae can be present, but never thick .....17

30
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50
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105
return to couplet 101


 * Clipeus notched medially .....106
 * Clipeus not notched medially, but forming a straight line .....150

102
return to couplet 105



150
return to couplet 105


 * Clipeus overhanging the mandibles, forming a rectangle .....151
 * Clipeus not overhanging the mandibles, but following a striaght line .....300

1000
return to couplet 1