Definition
Philidris cordata is a species of ant in the family Formicidae, subfamily Dolichoderinae. It is classified within the genus Philidris, which comprises arboreal ants primarily distributed in the Indo‑Australian region.
Overview
The species was originally described by Frederick Smith in 1858 (under a different generic assignment) and later transferred to the genus Philidris. It is listed in contemporary taxonomic databases such as AntCat and the Integrated Taxonomic Information System (ITIS) as a valid taxon. Like other members of its genus, P. cordata is presumed to be arboreal and to engage in mutualistic relationships with sap‑feeding insects, although detailed ecological studies specific to this species are limited.
Etymology / Origin
The generic name Philidris derives from Greek roots meaning “loving” (philos) and “ant” (idris), reflecting the ants’ close association with their environment. The specific epithet cordata is Latin for “heart‑shaped,” a term frequently applied in taxonomy to denote a characteristic resembling a heart; the precise morphological feature that inspired this name for the species has not been explicitly documented in the original description.
Characteristics
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Taxonomy:
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Hymenoptera
- Family: Formicidae
- Subfamily: Dolichoderinae
- Genus: Philidris
- Species: P. cordata
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Morphology: Detailed morphological characters for P. cordata are not extensively published in accessible literature. In general, Philidris ants are small to medium‑sized, possess a slender body, and have a single petiole node. Workers typically exhibit a smooth, shiny exoskeleton and lack a functional sting, characteristic of dolichoderine ants.
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Behavior and Ecology: Members of Philidris are primarily arboreal, nesting in live plant tissue or in leaf litter accumulated in tree cavities. They are known to tend homopteran insects (e.g., aphids, scale insects) for honeydew, and they may engage in foraging both on the host plant and on the forest floor. Specific behavioral observations for P. cordata remain scarce.
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Distribution: The precise geographic range of P. cordata is not comprehensively documented in publicly available sources. The genus Philidris occurs throughout the Indo‑Australian region, and records suggest that P. cordata may be found in parts of New Guinea and surrounding islands, but further verification is required.
Related Topics
- Genus Philidris – Overview of the ant genus, including other species such as Philidris sp. and their ecological roles.
- Dolichoderinae – Subfamily characteristics, evolutionary relationships, and distinguishing features among its constituent genera.
- Ant‑plant mutualisms – General principles of arboreal ant interactions with host plants and hemipteran symbionts.
Note: While Philidris cordata is recognized as a valid species in taxonomic catalogs, detailed species‑specific information (e.g., precise distribution, morphological measurements, and ecological studies) is limited in the current scientific literature. Consequently, some aspects of its biology are inferred from the broader characteristics of the genus Philidris and the subfamily Dolichoderinae.