Rasopone breviscapa

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Rasopone breviscapa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Rasopone
Species: R. breviscapa
Binomial name
Rasopone breviscapa
(Mackay, W.P. & Mackay, E.E., 2010)

This species is only known from a single dealate queen.

Identification

From Mackay and Mackay (2010): The female of Rasopone breviscapa is very similar to that of Rasopone rupinicola, but can be easily separated by the short scape. The scape of the female of R. rupinicola extends well past the posterior lateral corner of the head. Rasopone breviscapa is much larger than the females of other members of the ferruginea species complex. The worker of R. breviscapa would be expected to be similar to those of R. rupinicola, but have shorter scapes than the female (based on the relative scape length of the females and workers of R. rupinicola), which would allow R. breviscapa to be easily recognized.

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia (type locality).

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Rasopone breviscapa for further details


Biology

Castes

Nomenclature

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

  • breviscapa. Pachycondyla breviscapa Mackay & Mackay, 2010: 220, figs. 347, 349 (q.) BOLIVIA. Combination in Rasopone: Schmidt & Shattuck, 2014: 210.

Description

Worker

No workers known for this species.

Queen

The female is a moderate sized (total length 12 mm) ferrugineous red specimen. The mandible has approximately 9 teeth alternating in size. Some of the teeth are tiny and poorly developed. The anterior medial border of the clypeus is concave with two lateral angles. The head length and width are 1.7 mm. The maximum eye diameter is 0.3 mm and the eye is located slightly less than one diameter from the anterior margin of the head. The ocelli are tiny (0.06 mm diameter). The scape (1.35 mm) nearly reaches the posterior lateral corner of the head. The propodeal spiracle is circular and the posterior face of the propodeum is outlined by a poorly defined carina. The petiole is narrowed toward the apex, but has a definite dorsal face; the subpetiolar process has a posteriorly directed lobe. The anterior face of the postpetiole is nearly straight and meets the dorsal face at nearly a right angle. The stridulatory file on the second pretergite is absent.

Erect hairs are present on the mandibles, posterior margin and sides of the head, anterior margin of the clypeus, along the shaft of the scape, on the dorsum of the mesosoma, dorsum of the petiole, posterior edge of the subpetiolar process and all surfaces of the gaster. The hairs on the tibiae are sparse and suberect to erect. Appressed silver pubescence is present on all surfaces.

The mandibles are finely striate; the remainder of the surfaces is mostly finely punctate and dull, except for the gaster, which is punctate, but slightly shining.

Male

No males known for this species.

Type Material

Tumupasa, BOLIV., WM MANN; Dec.; MULFORD Biological Exploration, 1921-1922. Holotype dealate female (National Museum of Natural History)

Etymology

From Latin, brevis, meaning short and scapus meaning stalk, referring to the relatively short antennal scape.

References

  • Mackay, W. P., and E. E. Mackay 2010. The Systematics and Biology of the New World Ants of the Genus Pachycondyla (Hymenoptera: Formicidae). Edwin Mellon Press, Lewiston. Information from this publication is used with permission from the authors.
  • Schmidt, C.A. & Shattuck, S.O. 2014. The higher classification of the ant subfamily Ponerinae (Hymenoptera: Formicidae), with a review of ponerine ecology and behavior. Zootaxa. 3817, 1–242 (doi:10.11646/zootaxa.3817.1.1)