Dilobocondyla sebesiana

AntWiki: The Ants --- Online
Dilobocondyla sebesiana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Dilobocondyla
Species: D. sebesiana
Binomial name
Dilobocondyla sebesiana
Wheeler, W.M., 1924

Know only from the holotype, a dealate queen described in 1924.

Identification

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • sebesiana. Dilobocondyla sebesiana Wheeler, W.M. 1924b: 248 (q.) INDONESIA (Sumatra: Sebesi I.).
    • Type-material: holotype queen.
    • Type-locality: Indonesia: Sumatra, Sebesi I. (K.W. Dammerman).
    • Type-depository: MCZC.
    • Status as species: Chapman & Capco, 1951: 116; Bolton, 1995b: 171; Varghese, 2006a: 25; Bharti & Kumar, 2013a: 42 (in key); Chen, et al. 2019: 138 (in key).
    • Distribution; Indonesia (Sebesi).

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

Description

Queen

(dealated). Length nearly 6.5 mm.

Head almost square, very slightly longer than broad and slightly broader behind than in front, with acutely pointed posterior corners and broadly excised posterior border. Mandibles large and convex, with three large apical and a few indistinct basal teeth. Clypeus rather flat, with a median carina and an abbreviated costa on each side, the anterior border distinctly notched in the middle and sinuate on each side. Frontal area triangular, longer than broad; frontal carinae rapidly diverging behind, extending nearly to the posterior fourth of the head, forming the inner borders of distinct but not very deep scrobes for the antennal scapes. Eyes moderately large and convex, in front of the median transverse diameter of the head. Antennae short, scapes slightly curved! reaching nearly to the posterior third of the head; funicular joints 2-7 broader than long, joint 8 as long as broad, 9-11 longer than and forming a rather distinct club. Thorax evenly convex above, narrower than the head, broader in front than behind, humeral angles obtuse. Epinotum rounded and convex, without distinct base and declivity, the metasterna prominent, rounded. Petiole cylindrical, from above oblong, nearly two and one-half times as long as broad, with parallel sides, in profile slightly arcuate, without a node, its ventral border at the anterior end with a well-developed, anteriorly directed tooth. Post petiole broader than the petiole, longer than broad, broader and higher behind than in front, with a small, acute anteroventral tooth. Gaster broadly and regularly elliptical, not larger than the head, formed very largely by the first segment, Femora strongly and abruptly incrassate beyond their basal third, which is slender. Tibiae only slightly thickened, tarsi slender.

Shining; mandibles strongly striate; surface of clypeus uneven, indistinctly longitudinally rugose on the sides. Head coarsely and rather loosely rugose, the rugae on the upper surface longitudinal, diverging behind, on the sides and behind more reticulate, the interrugal spaces rather smooth on the front, vaguely and finely punctate. Sculpture of thorax and petiole similar to that of the head, the rugae on the mesonotum and scutellum longitudinal, on the pronotum, pleurae, petiole and postpetiole reticulate, on the postpetiole feebler than on the thorax. Gaster subopaque, finely and densely reticulate, the base of the first segment sharply longitudinally rugulose or striate. Coxae finely reticulate, remainder of legs shining.

Body and appendages covered with moderately abundant, stiff, rather obtuse, yellow hairs.

Ferruginous, gaster paler and more yellowish; antennal funiculi, mandibular teeth and wing insertions black; legs yellowish, except the tarsi, the knees of the fore pair and the knees and tibiae of the middle and hind pairs, which are ferruginous.

Type Material

A single specimen from Sebesi. (Dammerman).

References

References based on Global Ant Biodiversity Informatics

  • Bharti H., and R. Kumar. 2013. Five new species of Dilobocondyla (Hymenoptera: Formicidae) with a revised key to the known species. Asian Myrmecology 5: 29-44.
  • Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
  • Wheeler, William Morton. 1924. Ants of Krakatau and Other Islands in the Sunda Strait. Treubia. 5(1-3):1-20.