Meranoplus christinae

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Meranoplus christinae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Meranoplus
Species: M. christinae
Binomial name
Meranoplus christinae
Schödl, 2007

Meranoplus christinae p.jpg

Known from south-central Queensland and New South Wales.

Identification

Schödl (2007) - One of the larger species, M. christinae may be distinguished from all others by the clypeal projection and in the almost flanged frontal carinae. Meranoplus occidentalis, which has a similar clypeus is readily separated by the distinctly larger eyes, by the different promesosomal shield with missing posterior projections and by the different distribution.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Nomenclature

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

  • christinae. Meranoplus christinae Schödl, 2007: 389, figs. 38, 39, 71, 82, pl. 1,B (w.q.) AUSTRALIA.

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

Description

Worker

Holotype. TL 6.70, HL 1.63, HW 1.98, FC 1.50, CS 1.80, SL 0.91, SI1 46, SI2 51, PML 1.23, PW 1.65, PMD 1.73, PMI2 105, ML 1.55, PSL 0.69, PTLL 0.48, PTLH 0.61, PTDW 0.61, PPLL 0.45, PPLH 0.70, PPI 64, PPDW 0.59, PT/PP 104.

Mandible with three large acute teeth. Clypeus medially excavated, distinctly bidentate and longitudinally carinulate, with denticles laterally sinuately merging into anterolateral frontal projections. Head distinctly wider than long (CI 122), preoccipital corners bulbously rounded, the rear margin emarginate. Frontal carinae in posterior half almost straight, anteriorly abruptly becoming broader and sinuately narrowed towards clypeus, distinctly narrower than head width (FI 132). Antennal scrobe in lateral view surpassing middle of length of head posteriorly, transversely carinulate in posterior half, occasionally with additional microsculpture, posteriorly weakely demarcated from remainder of head. Genae and ventrolateral sides of head carinate to rugoreticulate, preoccipital lobes reticulate. Compound eyes of moderate size (EL 0.30, REL 0.18, with 17 ommatidia in the longest row) situated well in front of middle of lateral sides of head, dorsal ocular margin distinctly separated from ventral scrobal margin.

Promesonotum markedly wider than long (PMI 135), translucently margined laterally as well as posteriorly, concealing lateral sides of mesosoma and propodeal declivity. Mesosomal section markedly narrower than pronotum, with acute well developed projections. Propodeal spines rather long (PSL 0.69) situated above middle of length of declivity, acute and straight, moderately diverging when seen from above.

Petiole higher than long (PTI 78), in profile with anterior face straight, posterior face convex, distinctly and regularly costate. Postpetiole elongately nodiform with ventral medium sized tooth, rugose throughout.

First gastral tergite elongately and irregularly carinulate in basal half, posteriorly with microreticulum and interspersed glossy spots, with pilosity of differently sized setose hairs.

Dorsum of head anteriorly rugose, with additional rugulae and few transverse ridges, posteriorly reticulate, interspaces with microsculpture; with scattered arcuate thin hairs and fewer setose ones. Promesonotal shield coarsely rugoreticulate, with similar, though longer pilosity.

Concolorous brown to fuscous, frequently with the gaster somewhat brighter.

(n = 6). TL 6.65-7.20, HL 1.60-1.73, HW 1.95-2.01, FC 1.45-1.58, FI 129-134, CI 120-123, CS 1.78-1.91, SL 0.91-1.0, SI1 46-49, SI2 50-54, PML 1.20-1.43, PW 1.65-1.83, PMI 125-140, PMD 1.70-1.90, PMI2 101-106, ML 1.5-1.7, PSL 0.69-0.75, PTLL 0.45-0.53, PTLH 0.61-0.75, PTI 70-78, PTDW 0.56-0.70, PPLL 0.45-0.50, PPLH 0.70-0.89, PPI 63-68, PPDW 0.59-0.70, PT/PP 94-104, EL 0.29-0.32, REL 0.17-0.20, with 15-19 ommatidia in the longest row.

Type Material

Holotype worker, Queensland: 'Qld:26°47.8'Sx145°49.3'E "Merigol", site 4, mulga. Apr 2001. T.Beutel. pitfall trap #4. 10858' (Queensland Museum). Paratypes. 6 workers, same data as holotype; 62 workers, 1 gyne with same locality data but various site and pitfall-trap numbers (Australian National Insect Collection, Naturhistorisches Museum Wien, Vienna, QMBA).

Etymology

Named for Christine, my partner. I simply adore her.

References

  • Schödl, S. 2007. Revision of Australian Meranoplus: the Meranoplus diversus group. Memoirs of the American Entomological Institute 80:370-424.