Myrmecina nesaea

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

Know only from the holotype, a dealate queen collected in 1921 from Sebesi I. (near Krakatau Is.), Indonesia. The current location of this specimen is unknown, as is the identity of this species (Okido et al., 2020).

Identification

Keys including this Species

• Key to Myrmecina from Sundaland
• Key to Myrmecina of Southeast Asia
• Key to Myrmecina of Sumatra

Distribution

Sebesi Island.

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (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.

• nesaea. Myrmecina nesaea Wheeler, W.M. 1924b: 247 (q.) INDONESIA (Sebesi I.).

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

Description

Queen

(dealated). Length 2.2 mm.

Head as broad as long and as broad in front as behind, with convex sides and posterior corners and broadly concave posterior border. Eyes rather large and moderately convex, about one fifth as long as the sides of the head and situated a little in front of its median transverse diameter. Mandibles with rather oblique apical borders bearing two small acute terminal and four or five indistinct basal denticles. Clypeus short, rather flat, without carinae, but somewhat elevated on the sides and behind, its anterior border transverse, sinuate on each side, with a very small median denticle. Frontal area distinct, short and transverse, crescentic; frontal groove lacking; frontal carinae short, subparallel, widely separated. Antennal scapes scarcely reaching the posterior corners of the head; joints 2-7 of the funiculus very transverse, more than twice as broad as long; two basal joints of club not longer than broad, together much shorter than the swollen terminal joint. Thorax short and convex, slightly narrower than the head. Epinotum without any traces of small basal teeth, the spines short, acute, a little longer than broad at their bases. Petiole square, as broad as long; postpetiole a little broader, broader than long, more rounded anteriorly and on the sides. Gaster subcircular, convex, its anterior border somewhat truncated. Legs moderately long. the femora and tibiae only slightly thickened, the former curved at their bases.

Smooth and shining; mandibles with a few small, scattered piligerous punctures. Head very finely and densely punctate but shining; pronotum and pleurae irreguiarly and rather coarsely punctate-rugose; mesonotum smooth and shining in front, the posterior half with four strong longitudinal rugae converging to the scutellum, which bears six somewhat finer rugae. Sculpture of the petiole and postpetiole similar to that of the scutellum. Gaster, legs and antennal scapes very smooth and shining, with numerous very fine piligerous punctures.

Pilosity white, suberect, rather long and fine, of uneven length, conspicuous and abundant on the body and scapes, shorter and somewhat more reclinate on the legs.

Black, with a reddish tinge; mandibles, clypeus, cheeks, tip of gaster, antennae and legs, including the coxae. red.

Type Material

A single specimen from Sebesi, Oct, 26, 1921 (Dammerman).

Okido et al. (2020) - Syntype queen, INDONESIA: Sebesi I. (Dammerman) (depository unknown) [not seen].

References

• Okido, H., Ogata, K., Hosoishsi, S. 2020. Taxonomic revision of the ant genus Myrmecina in Southeast Asia (Hymenoptera: Formicidae). Bulletin of the Kyushu University Museum 7, 1-108.
• Satria, R., Eguchi, K. 2022. A new species of the genus Myrmecina Curtis, 1829 (Formicidae: Myrmicinae) from Sumatra. Far Eastern Entomologist, 463, 1–7 (doi:10.25221/fee.463.1).
• Wheeler, W. M. 1924. Ants of Krakatau and other islands in the Sunda Strait. Treubia. 5:239-258.

References based on Global Ant Biodiversity Informatics

• 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
• Okido H. 2011. Biogeography of the ant genus Myrmecina from Asia (Hymenoptera; Formicidae). Kankyo Kanri 40: 60-64.
• Satria R., and S. Yamane. 2019. Two new species of the ant genus Myrmecina (Hymenoptera: Formicidae: Myrmicinae) from Sumatra. Zoosystematica Rossica 28: 183–193.
• Wheeler, William Morton. 1924. Ants of Krakatau and Other Islands in the Sunda Strait. Treubia. 5(1-3):1-20.