Aphaenogaster balcanica

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to: navigation, search
Aphaenogaster balcanica
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Stenammini
Genus: Aphaenogaster
Species: A. balcanica
Binomial name
Aphaenogaster balcanica
(Emery, 1898)

Aphaenogaster balcanica casent0179599 p 1 high.jpg

Aphaenogaster balcanica casent0179599 d 1 high.jpg

Specimen Labels

Synonyms

On Lesbos observed in open, sunny locations: fields with scattered shrubs and urban areas. Nest in soil, mostly sheltered by stones. Workers are individually foraging on the ground, in herbs and bases of trees and shrubs. Foraging behavior can be described as cautious. Fast moving after disturbance. Evacuation of the nest population is observed after heavy rainfall. (Boer 2013)

Identification

A member of the A. testaceopilosa group. Boer (2013) - Workers. Similar to Aphaenogaster balcanicoides and Aphaenogaster melitensis. Aphaenogaster balcanicoides and A. melitensis are more setose on the petioles and have shorter setae. The SI/CI and the PPPI are significantly lower than in A. karpathica (p < 0.01), the RPH is significantly higher than in A. balcanicoides (p < 0.04), and lower than in A. melitensis (p < 0.01). Gynes. Punctation stronger than in A. melitensis.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: Albania, Bosnia and Herzegovina, Croatia, Greece (type locality), Italy (type locality), Malta, Slovenia, Turkey.

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • balcanica. Stenamma (Aphaenogaster) testaceopilosa var. balcanica Emery, 1898c: 136 (w.) GREECE. Menozzi, 1936d: 271 (q.m.l.). Combination in Aphaenogaster: Forel, 1911d: 346. Subspecies of simonellii: Santschi, 1933c: 390. Raised to species: Agosti & Collingwood, 1987a: 53. Senior synonym of ionia: Boer, 2013: 65.
  • ionia. Aphaenogaster semipolita var. ionia Santschi, 1933c: 390 (w.) ITALY. [First available use of Aphaenogaster testaceopilosa subsp. semipolita var. ionia Emery, 1915a: 257; unavailable name.] Raised to species: Schembri & Collingwood, 1981: 423. Senior synonym of melitensis, ionia Baroni Urbani: Bolton, 1995b: 70. Junior synonym of balcanica: Boer, 2013: 65.

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

Description

Boer (2013):

Worker

Lateral sides of mesosoma with (not always distinct) longitudinal rugulae. Dorsal side of pronotum more or less scabriculous. Propodeum with or without transverse rugulae. Head in full-face view with distinct longitudinal rugulae with cross-connections. Dorsal side of postpetiole with longitudinal costulae which are continuing in microstriae on dorsal part of gastral base. Head in full-face view, mesosoma, lateral sides of petioles and dorsal side of petiolar node punctate. Terminal side of propodeum, beneath the propodeal spines weakly punctate to smooth. Dorsal side of postpetiole more or less weakly punctate. Head in full-face view and mesosoma matt with some shine from the punctation. Terminal side of the propodeum, lateral sides of gaster, legs and petioles glossy. Dorsal side of postpetiole and gaster satiny to glossy. Antennal club 4-segmented. Petiole equal in height to postpetiole or somewhat higher. Lateral shape of petiole variable, in general anterior side steeper than posterior side.

Measurements (n = 67). CI 72–80 (75); CL 1.14–1.57 (1.43) mm; CW 0.84–1.25 (1.09) mm; PHI 29–35 (31); PI 67–88 (78); PPPI 43–58, 64 (52); PSI 100–200 (156); PSLWI 83–145 (115); PWI 19–27 (22); RPH 117–161 (138); RPSI 18–67 (42); SI 133–161 (149); SI/CI 163–227 (197); SL 1.27–1.77 (1.60) mm; SPD 1–3 (1.4); 1–5.5 (3.3).

Queen

Longitudinal rugulae on: clypeus, head anterior to the occiput, mesoscutum and posterior side of postpetiole. Occiput indistinctly scabriculous. Transverse rugulae on pronotum and propodeum. Scutellum with oblique and transverse rugulae. Head, mesosoma and petioles punctate. Less than ten transverse microstriae present near base of first gastral tergite. Anterior side of the petiole smooth. Head, mesosoma and petioles shiny, dorsum gaster shiny satin. Terminal side of propodeum, beneath the propodeal spines mainly smooth and shiny. Antennal club 4-segmented. Scutellum rises less above mesoscutum and does not bend over metanotum.

Measurements (n = 1). CI 86; CL 1.50 mm; CW 1.30 mm; OCI 32; PHI 42; PI 70; PPPI 63; PSI 209; PSLWI: 110; PWI 28; RPH 150; RPSI 57; SI 119; SI/CI: 138; SL 1.38 mm; SPD 1; SPL 4.

Male

Weakly rugulate on mesosoma, not on mesopleura. Metanotum indistinctly striate. Punctation on head, mesosoma and dorsal sides of petioles. Lateral sides of petioles and gaster smooth. Dorsal side of gaster microreticulated, without or with very short microstriae on dorsal side of base of first gastral tergite. Head, pronotum, mesoscutum and scutellum matt, rest of body, especially some of the lateral parts of the mesosoma and the petioles glossy. Pubescence on scape and hind tibia subdecumbent to suberect, shorter than diameter of scape/tibia. Mandibles with one apical tooth, tooth 2 and or 3 smaller, 4–5 denticles. A transverse groove in middle of propodeal dorsum, so the terminal part of the propodeum is raised. Propodeum with two terminal knobs, triangular projections, slightly dentate or with short spines. Between these a weak longitudinal groove. Antennal club 5-segmented. Head without clear frontal midline. Scutellum slightly erect above mesoscutum, in whole or in part bent over metanotum.

Measurements (n = 10). CI 86–92 (90); CL 0.84–0.94 (0.89) mm; CW 0.75–0.87 (0.80) mm; EYI 38–44 (41); OCI 44–52 (48); SL/CL 42–49 (47); SL 0.37–0.46 (0.42) mm.

References

  • Agosti, D.; Collingwood, C. A. 1987a. A provisional list of the Balkan ants (Hym. Formicidae) and a key to the worker caste. I. Synonymic list. Mitt. Schweiz. Entomol. Ges. 60: 51-62 (page 53, raised to species)
  • Boer, P. 2013. Revision of the European ants of the Aphaenogaster testaceopilosa-group (Hymenoptera: Formicidae). Tijdschrift voor Entomologie 156, 57–93.
  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 68, catalogue)
  • Emery, C. 1898c. Beiträge zur Kenntniss der palaearktischen Ameisen. Öfvers. Fin. Vetensk.-Soc. Förh. 20: 124-151 (page 136, worker described)
  • Forel, A. 1911f. Fourmis nouvelles ou intéressantes. Bull. Soc. Vaudoise Sci. Nat. 47: 331-400 (page 346, combination in Aphaenogaster)
  • Menozzi, C. 1936b. Nuovi contributi alla conoscenza della fauna delle Isole italiane dell'Egeo. VI. Hymenoptera - Formicidae. Boll. Lab. Zool. Gen. Agrar. R. Sc. Super. Agric. 29: 262-311 (page 271, queen, male, larva described)
  • Santschi, F. 1933d. Étude sur le sous-genre Aphaenogaster Mayr. Rev. Suisse Zool. 40: 389-408 (page 390, variety of simonellii)