Dilobocondyla karnyi

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

The types were collected "on trees among dead leaves".

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

Biology

Castes

Nomenclature

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

  • karnyi. Dilobocondyla karnyi Wheeler, W.M. 1924b: 249 (w.) INDONESIA (Java).

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

Description

Worker

Length 4.5 mm.

Head slightly longer than broad, a little broader behind than in front, with straight cheeks, acutely dentate posterior corners and broadly and not very deeply excised posterior border. Eyes moderately large and convex, just in front of the middle of the sides. Mandibles distinctly 6-toothed, but the teeth are narrow and crowded. Clypeus rather flat, with a delicate median and two lateral ridges, the anterior border nearly straight, feebly emarginate in the middle. Frontal area distinct, triangular, slightly longer than broad. Frontal carinae diverging behind, extending only to the posterior fourth of the head. Antennae slender, somewhat curved at the base, their tips reaching only one third the distance from the posterior orbit to the posterior corner of the head.

Thorax broad through the pronotum which is convex and rounded above and separated anteriorly from the neck by a sharp transverse carina and truncated surface. Mesoepinotal region distinctly and broadly constricted both dorsally and laterally, the epinotum with long convex base and very short, abrupt, concave declivity, the metasternal angles lamellate and rounded. Petiole of the usual cylindrical shape, more than twice as long as broad, distinctly arcuate in profile, with a strong anteroventral tooth. Postpetiole highest behind. from above a little longer than broad, broader behind than in front, less than half again as broad as the petiole, its sides rather rounded. Gaster subcircular. rather convex above, somewhat smaller than the head. femora and tibiae incrassated as in the preceding and following species.

Head, legs and truncated anterior surface of pronotum shining, remainder of body opaque. Mandibles sharply striate; clypeal surface rather uneven. indistinctly striolate. Head covered with reticulate rugae. which have rather uniform meshes and a distinct longitudinal trend only on the front. The interrugal spaces are shining and superficially punctate or uneven. The surface of the thorax, pedicel and gaster is opaque, without discernible finer sculpture, except the gaster, which is very finely reticulate and has sharp radiating striae at the base. There is no sculpture on the mesopleurae and epinotal declivity which are merely opaque, but the remainder of the thorax is coarsely and loosely reticulate-rugose, the rugae being distinctly blunter than on the head, somewhat longitudinal on the pro- and mesonotum and transverse on the base of the epinotum. The rugae on the petiole and postpetiole are similar, but longitudinal, more numerous on the latter. Knees and tibiae finely reticulate, especially on their extensor surfaces.

Pilosity as in sebesiana, but longer, somewhat more abundant and softer. Ferruginous, head and mandibles a little paler, vertex, thoracic rugae and posterior portions of gastric segments fuscous. The borders of the latter are paler and have a golden yellow reflection. Scapes, basal funicular joint and tip of terminal joint yellow, remainder of funicali dark brown. Legs yellow, knees, bases of femora, tibiae and metatarsi dark brown.

Type Material

A single specimen taken by Dr. Karny at Depok, Java "on trees among dead leaves" and sent me by Dr. 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