Camponotus edmondi species group

AntWiki: The Ants --- Online

Based on Rasoamanana and Fisher 2022.

Species

Identification

Key to Malagasy Camponotus subgenus Mayria minor workers

Diagnosis

The Camponotus edmondi species group can be distinguished by the combination of the following characters: dorsolateral margin of propodeum marginate or extending into a sharp ridge, propodeal declivity usually concave, anterolateral corner of pronotum most often marginate, forecoxa larger than the width of mesopleuron, and propodeal dorsum abruptly sloping down to the insertion of the petiole.

Major and Minor workers - Clypeus with broadly convex anterior margin and medially notched posterior margin. In profile, dorsal outline of mesosoma interrupted by metanotal suture, promesonotal suture distinct but not impressed. In profile, petiole always biconvex. Body integument opaque, densely reticulate-punctate. Few scattered hairs present on mesosomal dorsum, pubescence abundant to reduced.

Minor worker - In full-face view, head as long as broad, posterior margin broadly convex, lateral margins roughly straight.

Major worker - In full-face view, head subquadrate, posterior and lateral margins more or less straight to convex.

Notes

This revision replaces the earlier characterization of the C. edmondi species group by Rakotonirina J.C., Csosz S., and B.L. Fisher. 2016. This earlier study noted the following about the biology of species in this group: "Although the majority of species in the edmondi species group are arboreal, a few species are terrestrial (i.e., build their nests in the ground, in rotten logs, and in dead tree stumps). Sometimes individual workers are found foraging on the forest floor or through leaf litter."

References

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