Chelaner shattucki

Chelaner shattucki
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Solenopsidini
Genus:	Chelaner
Species group:	kiliani
Species:	C. shattucki
Binomial name
Chelaner shattucki (Heterick, 2001) Specimen Labels

As with several other Australian rainforest Chelaner, this species appears to have a restricted distribution, and is known from one collection from Cape Tribulation (Heterick 2001) .

Identification

Heterick (2001) - A member of the kilianii group. Chelaner shattucki is very similar to the more widespread Chelaner petiolatus, but differs in the shape of the nodes, the length of the petiolar peduncle and the position of the petiolar spiracle.

Keys including this Species

• Key to Australian Monomorium Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -16.08333015° to -16.08333333°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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.

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.

Nomenclature

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

• shattucki. Monomorium shattucki Heterick, 2001: 388, figs. 29, 79 (w.) AUSTRALIA.
  • Combination in Chelaner: Sparks et al., 2019: 233.

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

Description

Worker

Holotype. HML 2.15; HL 0.68; HW 0.59; Cel 86; SL 0.61; SI 104; PW 0.41. Others. HML 2.09-2.39; HL 0.66-0.74; HW 0.56-0.64; Cel 83-88; SL 0.52-0.64; SI 96-106; PW 0.40-0.49 (12 measured).

As for the worker of Chelaner kiliani, but with the following apomorphies.

Head. Head rounded; vertex slightly concave. Anteromedial clypeal margin straight or slightly emarginate, median clypeal carinae not produced as teeth or denticles. Posteromedial clypeal margin level with posterior surface of antennal fossae. Palp formula 2,2. Maximum number of mandibular teeth and denticles: four; mandibles (viewed from front) triangular and smooth, with piliferous punctures.

Alitrunk. Mesonotal suture absent. Metanotal groove present as feebly impressed furrow between promesonotum and propodeum. Propodeal sculpture present as uniform rugosity, with well defined costulae on declivitous face of propodeum. Propodeal processes absent (propodeum smoothly rounded in profile or with slight hump at propodeal angle), or absent (propodeum angulate in profile). Propodeal angle absent, or present; declivitous face of propodeum longitudinally concave between its lateral margins. Erect and suberect propodeal setae >5; propodeal setulae absent.

Petiole and postpetiole. Petiolar spiracle lateral and slightly anteriad of petiolar node. Petiolar node conical, dorsally rounded. Ratio of greatest node breadth (viewed from front) to greatest node width (viewed in profile) near 1:1 to near 3:4. Height ratio of petiole to postpetiole near 1:1 to near 4:3.

Gaster. Pilosity of first gastral tergite consisting entirely of well-spaced erect and suberect setae.

Type Material

Holotype. Worker, Queensland, 2 km W of Cape Tribulation (site 4) 16°05'S, 145°28'E, 21.iv.1983, G. B. Monteith & D. K. Yeates, berlesate no. 528, rainforest, 200m, sieved litter (Australian National Insect Collection). Paratype. Queensland: 7 workers and 2 ergatoids, same data as holotype (1 pin each to ANIC, The Natural History Museum and Museum of Comparative Zoology).

• Holotype, worker, 2.0km W Cape Tribulation (Site 4), Queensland, Australia, Monteith,G.B. & Yeates,D.K., ANIC32-015683, Australian National Insect Collection.
• Paratype, workers, ergatoid queen, 2.0km W Cape Tribulation (Site 4), Queensland, Australia, Australian National Insect Collection.
• Paratype, workers, ergatoid queen, 2.0km W Cape Tribulation (Site 4), Queensland, Australia, The Natural History Museum.
• Paratype, 2 workers, 1 ergatoid queen, 2.0km W Cape Tribulation (Site 4), Queensland, Australia, Museum of Comparative Zoology.

Etymology

Named in honor of Dr. Steve Shattuck, CSIRO, Canberra.

References

• Sparks, K. 2015. Australian Monomorium: Systematics and species delimitation with a focus of the M. rothsteini complex. Ph.D. thesis, University of Adelaide.
• Heterick, B. E. 2001. Revision of the Australian ants of the genus Monomorium (Hymenoptera: Formicidae). Invertebrate Taxonomy. 15:353-459. (page 388, figs. 29, 79 worker described)
• Sparks, K.S., Andersen, A.N., Austin, A.D. 2019. A multi-gene phylogeny of Australian Monomorium Mayr (Hymenoptera : Formicidae) results in reinterpretation of the genus and resurrection of Chelaner Emery. Invertebrate Systematics 33: 225–236 (doi:10.1071/IS16080).

References based on Global Ant Biodiversity Informatics

• CSIRO Collection