Lepisiota opaciventris

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Lepisiota opaciventris
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Plagiolepidini
Genus: Lepisiota
Species: L. opaciventris
Binomial name
Lepisiota opaciventris
(Finzi, 1936)

Lepisiota opaciventris casent0264062 p 1 high.jpg

Lepisiota opaciventris casent0264062 d 1 high.jpg

Specimen Labels

In Saudi Arabia this is one of the more common members of Lepisiota. It forms large polygynous colonies. (Collingwood, 1985)

Identification

This species is similar to Lepisiota gracilicornis in the long appendages but differs in sculpture. The propodeum and gaster are faintly sculptured with a dull shine instead of being completely brilliant. (Collingwood, 1985)

This beautiful variety is distinct from all others in having a silky gaster. It belongs to the bipartita group, including Lepisiota sericea from Hindustan. However, the shape of the head approaches that of Lepisiota frauenfeldi aegyptiaca. (Finzi, 1936)

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Saudi Arabia, United Arab Emirates.
Palaearctic Region: Egypt (type locality), Israel, Oman.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Sharaf et al (2018) - Oman: This species was found nesting under a stone and next to a date palm tree where soil was moist. Several workers were found foraging on the ground close to an Acacia tree where the soil was dry.

Castes

Worker

Queen

Male

Nomenclature

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

  • opaciventris. Acantholepis frauenfeldi var. opaciventris Finzi, 1936: 187, fig. 11 (w.) EGYPT. Combination in Lepisiota: Bolton, 1995b: 228. Raised to species: Collingwood, 1985: 296.

Type Material

Description

Length 2.8mm. All black and opaque, except for the polished upper mesonotum; tibia, tarsus, mandibles and antennae yellow.

The gaster silky with bluish reflections. Dorsum of scale sculptured, similar to Lepisiota bipartita; propodeum very weakly spined. Elongated head with the front sides sub-parallel and a little narrower than the pronotum. The few erect hairs are scattered on the head and on the edge of the segments gaster.

References

  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 228, Combination in Lepisiota)
  • Collingwood, C. A. 1985. Hymenoptera: Fam. Formicidae of Saudi Arabia. Fauna Saudi Arab. 7: 230-302 (page 296, Raised to species)
  • Dietrich, C. O. 2004. Taxonomische Beitraege zur Myrmekofauna Jordaniens (Hymenoptera: Formicidae). Denisia 14: 319-344 (see also)
  • Finzi, B. 1936. Risultati scientifici della spedizione di S. A. S. il Principe Alessandro della Torre e Tasso nell'Egitto e peninsola del Sinai. XI. Formiche. Bull. Soc. Entomol. Egypte 20: 155-210 (page 187, fig. 11 worker described)
  • Sharaf, M. R., B. L. Fisher, H. M. Al Dhafer, A. Polaszek and A. S. Aldawood. 2018. Additions to the ant fauna (Hymenoptera: Formicidae) of Oman: an updated list, new records and a description of two new species. Asian Myrmecology. 9:e010004; 1-38. doi:10.20362/am.010004