Crematogaster butteli

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Crematogaster butteli
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Crematogaster
Species group: ranavalonae
Species: C. butteli
Binomial name
Crematogaster butteli
Forel, 1913

Crematogaster butteli casent0193635 p 1 high.jpg

Crematogaster butteli casent0193635 d 1 high.jpg

Specimen Labels

This species is known only from the type locality in Sumatra.

Identification

A member of the Crematogaster ranavalonae-group

Hosoishi (2015) - This species is similar to Crematogaster tumidula but can be distiguished in having angulate anterolateral corners of the petiole.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -0.5° to -0.5°.

 
North
Temperate 		North
Subtropical 		Tropical South
Subtropical 		South
Temperate

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

Images from AntWeb

Crematogaster butteli casent0193635 l 2 high.jpg
Worker. Specimen code casent0193635. Photographer Bonnie Blaimer, uploaded by Curator Bonnie Blaimer. Owned by NHMB, Basel, Switzerland.

Nomenclature

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

  • butteli. Crematogaster (Oxygyne) butteli Forel, 1913k: 78 (w.q.m.) INDONESIA (Sumatra).
    • Type-material: lectotype worker (by designation of Hosoishi, 2015: 73), 5 paralectotype workers.
    • [Note: syntype queens and syntype males recorded in the original description are not mentioned by Hosoishi. Under the ICZN Code (Art. 74.1.3) all original syntypes become paralectotypes upon designation of one of their number as lectotype.]
    • Type-locality: lectotype Indonesia: Sumatra, Soengei Bamban, 9.iv.-14.vi.1912 (H. von Buttel-Reepen); paralectotypes with same data.
    • Type-depository: MHNG (lectotype); MHNG, NHMB (paralectotypes).
    • Status as species: Emery, 1922e: 157; Chapman & Capco, 1951: 100; Bolton, 1995b: 149; Hosoishi, 2015: 73 (redescription).
    • Distribution: Indonesia (Sumatra).

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

Description

Worker

Hosoishi (2015) - (type workers, n = 5). HW 0.80-0.85; HL 0.76-0.80; CI 103-107; SL 0.64-0.67; SI 79-84; EL 0.16-0.17; PW 0.48-0.52; WL 0.91-0.96; PSL 0.12-0.14; PtL 0.21-0.22; PtW 0.22-0.24; PtH 0.15-0.16; PpL 0.14-0.15; PpW 0.24-0.25; PtHI 68-76; PtWI 95-114; PpWI 167-179; WI 100-119.

Head appearing subquadratic in front view. Mandible weakly striate, with four teeth, apical and subapical teeth large, basal two teeth smaller. Scape exceeding posterior corner of head, with appressed setae, each of which is as long as width of scape. Compound eye large and slightly projecting beyond lateral margin of head in full face view.

Ventrolateral katepisternal ridge indistinct posteriorly. Propodeal spine long and stout, longer than spiracle diameter, directed upward, dorsum higher than anterior propodeum in lateral view. Propodeal spiracle large, situated on lateral surface of propodeum and close to propodeal declivity in lateral view.

In dorsal view, shape of petiole scoop with tapering side posteriorly, longer than broad. Petiole with anterolateral corner angulate. Petiolar spiracle big, as wide as half of propodeal spiracle in size. Postpetiole bilobed but without longitudinal median sulcus. Postpetiole as wide as petiole in dorsal view.

Integument essentially smooth and shiny. Clypeus smooth and shiny without rugulae. Malar region generally smooth, with feeble rugulae. Dorsal surface of promesonotum smooth and shiny. Lateral surface of pronotum smooth and shiny. Mesopleuron shiny, but with longitudinal rugulae. Dorsal surface of propodeum smooth and shiny. Lateral propodeum shiny, but with longitudinal rugulae.

Erect pilosity almost absent. Dorsum of head, clypeus and mesosoma with sparse, short and appressed setae. Clypeus with one pair of longer setae on anteriormost portion, directed medially. Anterior clypeal margin with two pairs of longer setae on median portion, mixed with some shorter setae on sides. No erect setae on pronotal shoulder. Posterolateral tubercle with some appressed setae. Ventral surface of petiole with appressed setae. Postpetiole with one pair of longer erect setae posteriorly. Fourth abdominal tergite with appressed setae.

Body color reddish brown.

Type Material

References

References based on Global Ant Biodiversity Informatics

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