Species: Cephalotes minutus

Author: John T. Longino

Taxonomic Hierarchy:

Subfamily: Myrmicinae Genus: Cephalotes

Distribution:

Paraguay: Alto Paraguay, Amambay, Canindeyú, Central, Concepción, Cordillera, Ñeembucú, San Pedro

Biology:

Natural History:

This is one of the most common species of Cephalotes. It is extremely generalized in its habitat preferences and can be found in the canopy of primary rainforest, in secondgrowth vegetation of all ages, in tropical dry forest, in scrubby roadside vegetation, and in mangroves. It appears to nest exclusively in dead stems; I have never found a nest in a live stem. I have seen nests in dead stems of all sizes, down to 3mm diameter. I sometimes find nests with no queen, which suggests that the species can be polydomous. When I do find queens, they are founding alone, or occur as the single queen in nests, suggesting monogyny.

For one nest I made a count of the entire contents. The nest was in a dead stem, outside dia. 5mm, inside dia. 3.5mm, 52cm long. There were 146 adult minors, 27 adult majors (majors and minors grade into each other to some extent), 16 callows, 57 pupae, 15 semipupae, and 30 larger larvae. The larvae were amber-colored; the semipupae were white.

Taxonomic History (provided by Barry Bolton, 2010)

minutus. Cryptocerus minutus Fabricius, 1804: 420 (w.) CENTRAL AMERICA. Smith, F. 1862d: 409 (s.); Emery, 1890b: 74 (q.); Wheeler, G.C. & Wheeler, J. 1954b: 155 (l.). Combination in Cryptocerus (Paracryptocerus): Emery, 1915i: 192; in Paracryptocerus: Kempf, 1951: 169; in Zacryptocerus: Kugler, C. 1978a: 474; in Cephalotes: De Andrade & Baroni Urbani, 1999: 194. Senior synonym of quadrimaculatus, volxemi: Emery, 1890a: 68; Emery, 1890b: 74; of exiguus: Kempf, 1958a: 110; of cognatus: De Andrade & Baroni Urbani, 1999: 195.

References:

Andrade, M. L. de, and C. Baroni Urbani. 1999. Diversity and adaptation in the ant genus Cephalotes, past and present (Hymenoptera, Formicidae). Stuttgarter Beitrage zur Naturkunde Serie B (Geologie und Palaontologie) 271:1-889.

Fabricius, J. C. 1804. Systema Piezatorum secundum ordines, genera, species, adjectis synonymis, locis, observationibus, descriptionibus. Brunswick: C. Reichard, xiv + 15-439 + 30 pp.

Kempf, W. W. 1951. A taxonomic study on the ant tribe Cephalotini (Hymenoptera: Formicidae). Rev. Entomol. (Rio J.) 22:1-244.

4 Specimens Imaged | View All 163 Specimens for this species


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