Carebara diversa tenuirugosa

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Carebara diversa tenuirugosa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Carebara
Species: C. diversa
Subspecies: C. diversa tenuirugosa
Trinomial name
Carebara diversa tenuirugosa
(Wheeler, W.M., 1929)

Identification

Wheeler (1929) - The posterior sculpture of the head is very peculiar and quite different from that of the other subspecies of diversus.

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Philippines (type locality).

Check distribution from AntMaps.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Carebara diversa_tenuirugosa for further details

Biology

Castes

Nomenclature

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

  • tenuirugosa. Pheidologeton diversus subsp. tenuirugosus Wheeler, W.M. 1929g: 44 (s.w.) PHILIPPINES. Combination in Carebara: Fischer, Azorsa & Fisher, 2014: 71.

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

Description

Worker

Major Length 8-9 mm.

Head distinctly broader than long; anterior clypeal border sinuate in the middle. Scutellum very prominent; epinotal spines deflected at their tips. Petiolar node with transverse, superior border, entire in the smaller specimen, feebly emarginate in the middle in the larger specimen. Sides of postpetiole produced as blunt conules.

Shining; anterior rugae on head not very pronounced and not continued back beyond the eyes; vertex and sides of front smooth and shining over a broad area, sparsely punctate behind. Rugae on the vertex fine, not transverse, slightly diverging in front, longitudinal behind, interspersed with .coarse elongate punctures or foveolae. The occipital rugae are much finer than those on the sides of the front: sides of head with fine, straight, longitudinal rugae. Pronotum, base and declivity of epinotum sharply transversely rugose; mesonotum, posterior and lateral portions of pronotum sparsely and coarsely punctate; scutellum smooth and impunctate; sides of thorax very finely punctate or granular; with longitudinal rugae ventrally and posteriorly. Petiole and postpetiole rather smooth in front; longitudinally rugose behind on the sides. Gaster shining and finely punctate; base of first segment also with scattered larger punctures.

Hairs yellow, sparse on the tibiae.

Dark reddish brown; antennae and legs paler; gastric segments with yellowish borders; mandibles and clypeus bordered with black.

Minima Length about 1.8 mm.

Smaller than the worker of the typical diversus, which measures 2.5 mm., with the mesoepinotal constriction distinctly longer and more rounded at the bottom and the epinotal spines shorter and more slender. The color is paler, the thorax and appendages being brownish yellow; the head dark brown above, the scapes and gaster paler brown. The few hairs on the body are shorter than in typical diversus, the subappressed hairs on the legs much the same.

Type Material

Two large and two minima workers taken by Professor Silvestri at Los Banos, Luzon Island, Philippines. The largest specimen is almost a maxima, or soldier, but possesses no ocellus.

References

  • Baltazar, C. R. 1966. A catalogue of Philippine Hymenoptera (with a bibliography, 1758-1963). Pac. Insects Monogr. 8: 1-488 (page 258, listed)
  • Fischer, G., Azorsa, F. & Fisher, B.L. 2014. The ant genus Carebara Westwood (Hymenoptera, Formicidae): synonymisation of Pheidologeton Mayr under Carebara, establishment and revision of the C. polita species group. ZooKeys 438: 57–112.
  • Wheeler, W. M. 1929h. Ants collected by Professor F. Silvestri in Formosa, the Malay Peninsula and the Philippines. Boll. Lab. Zool. Gen. Agrar. R. Sc. Super. Agric. 24: 27-64 (page 44, soldier, worker described)