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Camponotus (Myrmosericus) cruentatus (Latreille)

Camponotus (Myrmosericus) cruentatus (Latreille)

return to list  Type location "Africa" (Formica cruentata, Latreille, 1802c: 116, illustrated, worker; Roger, 1862b: 255, queen & male; Emery, 1916b: 230, major worker) - no images on Antweb (October 2014)
junior synonyms
opaca (Formica opaca Duf. mscrpt., Nylander, 1856: 55, illustrated clypeus, worker; synonymy Roger, 1859: 228; Mayr, 1861: 36; and unavailable name bucephala, Roger, 1862c: 255) from France - no images on Antweb (October 2014)
gigas (Formica gigas, Leach, 1825: 292, all forms; synonymy Dalla Torre, 1893: 277) from France - no images on Antweb (October 2014)
cruentior (Camponotus (Myrmosericus) cruentatus Ol. var. cruentior n. var., Santschi, 1931a: 12, major & minor workers; synonymy Cagniant, 1991b: 51) from Morocco, Tangier, Buchet, 1901 - see below
lindbergi (Camponotus (Myrmosericus) cruentatus Ol. var. lindbergi n. var., Santschi, 1931a: 12, major & minor workers, synonymy Cagniant, 1991b: 51) from Morocco, Azrou, Alluaud. - see

{Camponotus (Myrmosericus) cruentatus} Latreille's (1802c) description is at {original description}; Leach's (1825) description of gigas is at {original description} [Leach, W. E. 1825. Descriptions of thirteen species of Formica and three species of Culex, found in the environs of Nice. Zool. J. 2, 289-293. ]; Nylander's (1856b) description of opaca is at {original description}; he recognises opaca as described in manuscript by Dufour and from Savignyi, Atl. Aegyt, X, 20, f.7. Roger's (1862b) description of the queen and male is at {original description}

{Camponotus cruentatus}Emery's (1916b key) description including the worker is at {original description}; Santschi's (1931a) descriptions of cruentior and lindbergi are at {original description}; he attributes the species to Olivier (presumably Olivier, 1792) but this appears to be an error.

{Camponotus cruentatus}Cagniant (1985b) studied a range of populations and describes cruentatus as polymorphic, with a considerable size range, TL 6-14 mm;
His general description of the worker was - colour head, scape and promesonotum blueish-black, scape, propodeum, petiole and base of legs reddish brown, rest of legs very dark brown, funiculus clearer, posterior gaster black.

{Camponotus contraria}The photomontage of the cruentior type major worker is collated from

{Camponotus cruentatus}The photomontage of the cruentior type minor worker is collated from Listed by Santschi (1931a).

Oxford University Museum specimens

Camponotus (Myrmosaga) cruentatus
B Taylor det.
M James
St Katherine’s Protectorate


{Camponotus (Myrmosericus) cruentatus}Egypt record - Savignyi collection. James 2002 sample 10, from St Katharine's Protectorate. These show the features emphasised by Emery (1916b) - TL 6-14 mm; tibia compressed laterally, excavated on the dorsal face with a longitudinal groove; hairs yellowish and quite thick on the gaster; postero-ventral alitrunk, coxae and much of the femora, petiole and dorsum of first gastral segment reddish-rust; rest black or brown.

2010, 2015, 2019 - Brian Taylor CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.