Camponotus sericeus

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Camponotus sericeus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Camponotus
Species: C. sericeus
Binomial name
Camponotus sericeus
(Fabricius, 1798)

Camponotus sericeus casent0104896 profile 1.jpg

Camponotus sericeus casent0104896 dorsal 1.jpg

Specimen labels


Workers are active throughout Rawdhat Khorim, Saudi Arabia, being abundant from March through October, with a major peak in June. Workers of C. sericeus occur on Acacia trees and on the giant milkweed Calotropis procera (Aiton) W. T. Aiton (Apocynaceae). Several workers have been observed foraging on C. procera plants and attending aphids (Sharaf et al., 2013).

At a Glance • Tandem running  



Ionescu-Hirsch (2009) - This species can be recognized by the robust build (the major worker with very broad head and mesosoma), the coarse sculpture of the head and mesosoma, and by the gaster covered with thick, apressed, golden-mossy pubescence. The head of major workers is truncated posteriorly, with the anterior margin of the clypeus not extending beyond the anterior margin of the gena, broadly rounded and incised medially. The mesosoma has a distinct metanotal groove, the propodeal dorsum is broad and flat, margined laterally and posteriorly, with obtuse teeth.

Keys including this Species


Distribution based on Regional Taxon Lists

Afrotropical Region: Benin, Burkina Faso, Eritrea, Gambia, Ivory Coast, Kenya, Kenya, Mali, Saudi Arabia, Senegal (type locality), Sudan, United Arab Emirates, Zimbabwe.
Malagasy Region: Mauritius.
Oriental Region: India, Pakistan, Sri Lanka, Thailand.
Palaearctic Region: Afghanistan, Algeria, Egypt, Israel, Kuwait, Oman.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb Camponotus sericeus is one of the more common carpenter ants of the Arabian Peninsula (Collingwood, 1985; Collingwood and Agosti, 1996; Collingwood et al. 2011). It was originally described from Senegal, recorded from Algeria (Santschi 1929a) and has a broad distribution throughout the Afrotropical region (Wheeler 1922, Taylor 2010). Additional records are from Pakistan (Umair et al., 2012), India, and Ceylon (Collingwood, 1962). This species has also been reported from the Oriental region, e.g. Thailand (Jaitrong and Nabhitabhata, 2005).


Sharaf et al (2018) - Oman: Collected nesting under a stone at the edge of a pomegranate field; it was coexisting with Brachyponera sennaarensis in dry soil.

Collingwood and Agosti (1996) - Unlike many of the larger Camponotus species which are generally nocturnal, this ant, itself large and conspicuous, forages throughout the day.

Life History Traits

  • Mean colony size: 250 (Holldobler et al., 1974; Beckers et al., 1989)
  • Foraging behaviour: tandem recruitment (Holldobler et al., 1974; Beckers et al., 1989)



The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • sericeus. Formica sericea Fabricius, 1798: 279 (w.) SENEGAL. Mayr, 1866b: 886 (q.); Forel, 1886f: 192 (m.); Forel, 1891b: 56 (s.w.q.m.); Imai, et al. 1984: 9 (k.). Combination in Camponotus: Mayr, 1862: 675; in Orthonotomyrmex: Ashmead, 1906: 31; in C. (Myrmentoma): Forel, 1912i: 92; in C. (Orthonotomyrmex): Forel, 1913k: 129. Senior synonym of aurulenta, obtusa: Roger, 1863b: 2; of pyrrhocephala: Emery, 1893f: 254. Current subspecies: nominal plus euchrous, peguensis, sanguiniceps, sulgeri.
  • aurulenta. Formica aurulenta Latreille, 1802c: 114, pl. 3, fig. 9 (q.) SENEGAL. Junior synonym of sericeus: Roger, 1863b: 2.
  • pyrrhocephala. Formica pyrrhocephala Motschoulsky, 1863: 11 (w.) SRI LANKA. Junior synonym of sericeus: Emery, 1893f: 254.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



Ionescu-Hirsch (2009) - TL = 7.1–11.1, HL = 1.56–2.86, HW = 1.46–3.48, EL = 0.47–0.78, SL = 1.64–2.21, ML = 2.58–4.02, PW = 1.27–2.30, mTbL = 1.52–2.23, hTbL = 2.19–3.13 (n = 10).


  • 2n = 44, karyotype = 2M+42A (India) (Imai et al., 1984).