Myrmecina hamula

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to navigation Jump to search
Myrmecina hamula
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Myrmecina
Species: M. hamula
Binomial name
Myrmecina hamula
Zhou, Huang & Ma, 2008

Nothing is known about the biology of Myrmecina hamula.

Identification

Zhou et al. (2008) - Closely related to Myrmecina graminicola, but it can be distinguished from the latter by the small hooks at the apices of propodeal spines, more feeble rugae on the head, and more strong rugae on the dorsum of the alitrunk.

Keys including this Species

Distribution

Guangxi Pr., Shannxi Pr., China.

Distribution based on Regional Taxon Lists

Palaearctic Region: China (type locality).

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Known only from the worker caste.

Nomenclature

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

  • hamula. Myrmecina hamula Zhou, Huang & Ma, 2008: 288, figs. 4-6 (w.) CHINA.

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 3.50, HL 0.78, HW 0.74, CI 94, SL 0.63, SI 85, PW 0.52, AL 0.89, EL 0.09, PL 0.26, PH 0.22, PNW 0.20, PPL 0.22, PPH 0.20, PPW 0.24. Paratype. TL 3.40, HL 0.77, HW 0.70, C I 91, SL 0.60, SI 86, EL0.08, AL0.86, AW 0.49, PNW0.21, PL 0.2 1, PH 0.19, PPW 0.24, PPL 0.20, PPH 0.18.

Head square, with parallel sides and concave posterior margin. Mandible triangular, masticatory margin armed ·with two sharp apical teeth and a series of small blunt denticles. Clypeus with a distinct medial tooth and a angulate projection on either sides. Antennae 12-segmented, scape cylindrical at basal bend, reaching occipital border. Eyes moderately large, situated laterally before the longitudinal middle of the head, 0.11 mm in maximum diameter, consisting of about ten ommatidia. Alitrunk convex in profile view, tapering posteriorly, pronotum marginated, anteroventral corner of lateral pronotal lobe blunt. Anterolateral process of propodeal dorsum distinct and triangular; propodeal spines long, apex strongly recurved outwards, forming a distinct small hook, declivity concave. Petiole cylindrical, longer than broad, with truncate and concave anterior surface, without distinct anterior peduncle; dorsal node with a distinct cross ridge. Subpetiolar process blunt, postpetiole subsquare but not transversely broad, nearly as long as broad. Gaster broadly oval.

Mandibles and clypeus smooth and shining. Antennal scape longitudinally rugose. Head densely punctate, with feeble granulate rugae diverging posteriorly. Alitrunk more strongly longitudinally rugose than in M. graminicola and the dorsal rugae divergent anteriorly. Petiole and postpetiole coarsely and longitudinally rugose. Gaster smooth and shining. Body covered with sparse recumbents and subrecumbents hairs, flagellum with dense pubescence. Body black brown; mandibles, clypeus, gena, propodeal declivity, legs and gaster behind the first segment yellowish brown.

Type Material

Holotype worker. Long Hu, Nonggang National Nature Reserve (22°11' N, 106°59' E), Longzhou County, Guangxi Province, P. R. China, May 23, 1998, Coli. by John R. Fellowes.

Paratype 1 worker, Foping National Nature Reserve (33°32' N, 107°40' E), Shaanxi Province, P. R. China, August 6, 2006, Coli. by Libin Ma.

The holotype is deposited in the Insect Collection, College of Life Science, Guangxi Normal University, Guilin, China. The paratype is deposited in the Institute of Zoology, Shaanxi Normal University, Xi'an, China.

Etymology

The species is named from the Latin word “Hamulus”, referring to its small hooks at the apex of propodeal spines.

References

  • Zhou, S., Huang, J. and L. Ma. 2008. Two new species of the ant genus Myrmecina (Hymenoptera: Formicidae), with a key to Chinese species. Sociobiology. 52:283-291.