Leptanilla escheri

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Leptanilla escheri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Leptanillinae
Tribe: Leptanillini
Genus: Leptanilla
Species: L. escheri
Binomial name
Leptanilla escheri
(Kutter, 1948)

Leptanilla escheri antweb1008003 p 1 high.jpg

Leptanilla escheri antweb1008003 d 1 high.jpg

Identification

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Oriental Region: India (type locality).

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.

  • escheri. Leptomesites escheri Kutter, 1948: 287, figs. 1-4 (w.q.l.) INDIA. Wheeler, G.C. & Wheeler, J. 1965: 31 (l.). Combination in Leptanilla: Baroni Urbani, 1977c: 462. See also: Bharti & Kumar, 2012c: 623.

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

Description

Worker

Bharti & Kumar (2012) - HL 0.38–0.39, HW 0.27–0.28, SL 0.19, ML 0.07, MSL 0.44–0.45, PW 0.19– 0.20, PTL 0.10–0.12, PTNL 0.09, PPTL 0.10, PPTNL 0.09, PTW 0.09–0.10, PPTW 0.11–0.12, PTH 0.10, PPTH 0.13–0.14, CI 69.23–73.68, DPPTI 110.00–120.00, PI 100–111.11, PPTI 84.62–85.71, SI 67.86–70.37 (6 specimens measured).

Head longer than wide, dorsum flattened, sides straight to weakly convex; posterior head margin almost straight to weakly concave; posterolateral corners narrowly rounded; head without spots near its anterior margin; mandibles narrow, slender and bowed inwardly, masticatory margin with 3 teeth; all teeth present at equal distance, apical tooth large, acute, median and basal teeth smaller and acute; clypeus protruding forward, anterior margin concave, apically bilobed; eyes absent; antennae short, 12-segmented, scape ending by 3/4 of its length and 1/2 of head length before posterior head margin; 1st funicular segment longer than wide; 2nd funicular segment longer than wide, thin at its base and narrowly attached to 1st funicular segment; funicular segments 3–6 wider than long, segments 9–10 thick, quadrate and as wide as long; apical segment longer and equal in length to the two preceeding segments together; mesosoma elongated, its dorsum flat in lateral view, almost equal in length to the gaster; pronotum slightly raised, almost as wide as long, sides strongly convex in dorsal view; promesonotal suture wide and deep; mesonotum constricted; metanotal groove absent; dorsum of propodeum longer than its declivitous face, posterodorsal corners rounded, declivitous face weakly convex; fore tibiae and all femora swollen; basitarsus of fore legs without a projection on its ventral anterior margin; mid and hind tibiae with simple spur; petiolar node almost as wide as long, in dorsal view longitudinally and transversally weakly convex with rounded lateral sides, anterior face vertical; petiole with a weak subpetiolar process without lamella; petiolar process convex, anteriorly and posteriorly oblique; postpetiolar node slightly wider than long, antero-posterodorsally rounded in lateral view, sides rounded in dorsal view; subpostpetiolar process large, wide and convex, anterior and posterior faces obliquely rounded; petiolar spiracle large and almost 2 times the size of postpetiolar spiracle, gaster broadly oval; sting short, non protruding to slightly protruding, with bulb as wide as shaft.

Body smooth and shiny with fine punctures on head and dorsum of mesosoma; internal side of mandibles with 2–3 setae; body covered with abundant decumbent pubescence and short suberect hairs along with few long suberect hairs on mandibles, clypeus and apex of gaster, color brownish yellow.

References

  • Baroni Urbani, C. 1977c. Materiali per una revisione della sottofamiglia Leptanillinae Emery (Hymenoptera: Formicidae). Entomol. Basil. 2: 427-488 (page 462, combination in Leptanilla)
  • Bharti, H. & Kumar, R. 2012. A new species of Leptanilla (Hymenoptera: Formicidae: Leptanillinae) with a key to Oriental species. Annales Zoologici 62, 619-625.
  • Kutter, H. 1948. Beitrag zur Kenntnis der Leptanillinae (Hym. Formicidae). Eine neue Ameisengattung aus Süd-Indien. Mitt. Schweiz. Entomol. Ges. 21: 286-295 (page 287, figs. 1-4 worker, queen described)
  • Wheeler, G. C.; Wheeler, J. 1965b. The ant larvae of the subfamily Leptanillinae (Hymenoptera, Formicidae). Psyche (Camb.) 72: 24-34 (page 31, larva described)